Geochemistry Seminar Program

Joint Seminars - a fusion of former IPPU- and former Geochemistry Seminars -
will take place in the Earth Sciences building, Budapestlaan 4;

IN PRINCIPLE once per two weeks, on Tuesdays from 13.15 - 14

for further information please contact c.m.vanminnen@uu.nl

Spring 2012

Date time, room	Speaker (Affiliation) Title / Tentative topic

Thur 12 Jan 13:15, BBL-161	Anirban Basu, University of Illinois, USA Application of Cr and U stable isotope approach in remediation: Fractionation factors for abiotic and microbial reductions of hexavalent Cr and U
Tue 24 Jan 14, AW-KCZ	Wilma Wessels, Dept Earth Sciences - Stratigraphy and Paleontology, Fac Geosciences, UU Mongolia – Valley of the Lakes: Oligocene and Miocene biostratigraphy
Tue 31 Jan 13:15, AW-KCZ	Sandra Passchier, Department of Earth and Environmental Studies, Montclair State University, USA Cenozoic greenhouse to icehouse sedimentation on the Antarctic continental margin abstract
Tue 7 Feb 13:15, AW-KCZ	Nina Keul, AWI - Marine Biogeosciences, Bremerhaven, Germany Impacts of ocean acidification on foraminiferal calcification and (trace) element incorporation abstract
Tue 21 Feb 13:15, AW-KCZ	Luc Lourens, Dept Earth Sciences - Stratigraphy and Paleontology, Fac Geosciences, UU Onset, evolution and effects of the Mediterranean Outflow: Preliminary Results of IODP Expedition 339 in the Gulf of Cadiz
Mon 27 Feb 13:30, Min 019	Sander van den Boorn, Shell, NL Novel applications of trace metals and Molybdenum isotopes in petroleum fluid studies abstract
Tue 6 March 13:15, AW-KCZ	Kathrin Schilling, Dept Earth Sciences - Petrology, Fac Geosciences, UU Versatility of selenium isotopes as a new approach to assess redox changes abstract
Thu 15 March 13:15, AW-KCZ	Marco Coolen, Woods Hole Oceanographic Institution (WHOI), Woods Hole, MA, USA Reconstruction of hydrological and ecological changes in the Black Sea during the last 11.4 ka: insights from paired fossil DNA and molecular level isotopic measurements abstract
Tue 20 March 13:15!! AW-KCZ	Vesselin Dekov, Department of Geology and Paleontology, Department of Marine Geosciences, University of Sofia, Bulgaria; now at IFREMER Hydrothermal Fe-oxyhydroxide deposits at the seafloor abstract
Tue 20 March 15:30!! AW-KCZ	Donna Fennell, Rutgers University, New Brunswick, NJ, USA Recovering ammonia for hydrogen biofuel production during anaerobic digestion abstract
Tue 10 April 13:15, AW-KCZ	Devis Di Tommaso, Department of Chemistry, University College London, London, UK Computer simulations of metals and metal carbonates in an aqueous environment abstract
Tue 17 April 13:15, AW-KCZ	Sybren Drijfhout, Koninklijk Nederlands Meteorologisch Instituut, De Bilt, NL A contribution from Earth System Modelling to Paleo Climate Research and long-term Global Change. abstract
Wed 18 April 13:15, AW-N 112	Christopher K. Algar, Marine Biological Laboratory, Woods Hole, MA , USA A maximum entropy production (MEP) based model of nitrogen cycling processes in anoxic sediments abstract
Wed 2 May 13:15, MIN 208	Helena Filipsson, Department of Geology, Lund University, Sweden A seasonal study of d¹³C_DIC and d¹⁸Ow along a marked oxygen and salinity gradient in the Baltic Sea-Skagerrak region abstract
Tue 8 May 13:15, AW-KCZ	Nora de Leeuw, Department of Chemistry, University College London, UK Computational insights into geochemical processes abstract
Tue 22 May 13:15, AW-KCZ	tba, tba tba
Tue 5 June 13:15, AW-KCZ	tba, tba tba
Tue 19 June 13:15, AW-KCZ	tba, tba tba

Previous seminar series

							Spring 2012
Autumn 2011	Spring 2011	Autumn 2010	Spring 2010	Autumn 2009	Spring 2009	Autumn 2008	Spring 2008
Autumn 2007	Spring 2007	Autumn 2006	Spring 2006	Autumn 2005	Spring 2005	Autumn 2004	Spring 2004
Autumn 2003	Spring 2003	Autumn 2002	Spring 2002	Autumn 2001	Spring 2001	Autumn 2000	Spring 2000

Autumn 2011

Date time, room	Speaker (Affiliation) Title / Tentative topic


Tue 30 Aug 13:00, AW-KCZ	Mariette Wolthers , Dept Earth Sciences - Stratigraphy and Paleontology, Fac Geosciences, UU, AND Department of Chemistry, University College London Calcite growth rate and solution composition abstract
Tue 6 Sept 13:00, AW-GCZ	Steve Bohaty , National Oceanography Center Southampton, UK The bumpy road to the icehouse: the onset of the Eocene-Oligocene Transition in the context of long-term Eocene climate evolution abstract
Wed 14 Sept 11:00, AW-KCZ	Gerald Dickens , Dept of Earth Sciences, Rice University, Houston, Texas, USA Down the rabbit hole: toward appropriate discussion of methane release from gas hydrate systems during the Paleocene-Eocene thermal maximum and other past hyperthermal events abstract
Tue 4 Oct 13:00, AW-KCZ	Diederik Liebrand , National Oceanography Centre, Southampton, UK Dynamics of a unipolar icehouse: Climatic oscillations in the late Oligocene-early Miocene time interval abstract
Tue 11 Oct 13:15, AW-KCZ	Juraj Majzlan , Instite of Geosciences, Mineralogy Department, University of Jena, Germany Sinks of toxic or not so toxic elements: Minerals and biominerals abstract
Tue 18 Oct 13:00, AW-KCZ	CANCELLED!!!
Tue 1 Nov 11:00, BBL 161	Stephen R. Meyers , University of Wisconsin - Madison, USA Obliquity forcing and the amplification of high-latitude climate processes during Oceanic Anoxic Event 2 abstract
Tue 15 Nov 13:00, AW-KCZ	Elisenda Costa, Departament d'Estratigrafia, Paleontologia i Geociències Marines, Facultat de Geologia, Universitat de Barcelona, Spain Paleogene chronostratigraphy and tectonosedimentary evolution of the Eastern Ebro Basin (NE Spain) abstract
Mon 28 Nov 15:30, AW-GCZ	Conny Lenz , Department of Earth and Ecosystem Sciences, Lund University, Sweden Understanding long-term trends in hypoxia in the Baltic Sea abstract
Tue 13 Dec 13:00, AW-KCZ	CANCELLED

Spring 2011

Date time, room	Speaker (Affiliation) Title / Tentative topic

Tue 11 Jan 13:00, AW-KCZ	Rienk Smittenberg, ETH Zurich, Switzerland Radiocarbon as a tracer of organic dynamics - past progress and current developments abstract
Tue 8 Feb 13:00, AW-KCZ	Harilaos Tsikos, Rhodes University, Grahamstown, South Africa Biogeochemistry of Mn in the Proterozoic abstract
Tue 22 Feb 13:00, AW-KCZ	Diana Sahy, NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, UK Integrating marine and terrestrial records from the Late Eocene – Early Oligocene of North America and Italy abstract
Tue 8 March 13:00, AW-KCZ	Fanny Monteiro, School of Geographical Sciences, University of Bristol, United Kingdom Assessing the mechanisms for the late Cretaceous Oceanic Anoxic Event (OAE-2) in a global Earth system model abstract
Tue 22 March 13:00, AW-KCZ	Erik Tuenter, Dept Earth Sciences - Stratigraphy and Paleontology, Fac Geosciences, UU, AND Royal Netherlands Meteorological Institute (KNMI), Dept Climate and Seismology, De Bilt, NL Modeling leads and lags on orbital timescales with a global climate model abstract
Tue 12 April 13:00, AW-KCZ	Chun Zhu, MARUM, University of Bremen, Germany Understanding the fate of different terrestrial organic components in the sea and its implications for the use of terrestrial organic proxies abstract
Tue 19 April 13:00, AW-KCZ	Martin Ziegler, School of Earth and Ocean Sciences, Cardiff University, Wales, United Kingdom Persistent dust driven nutrient utilization in the Subantarctic over the past 350,000 years abstract
Tue 10 May 13:15, AW-KCZ	Stefan Schouten, Royal Netherlands Institute for Sea Research (NIOZ), AND Dept Earth Sciences - Geochemistry, Faculty of Geosciences, UU Comparison and development of sea surface temperature proxies abstract
Mon 23 May 13:00, AW-GCZ	Howard Spero, Department of Geology, University of California Davis, USA Experimental perspective on intratest geochemical variability in planktonic foraminifera abstract
Tue 21 June 13:00, AW-KCZ	Björn Rost, AWI Alfred Wegener Institut, Bremerhaven, Germany New approaches to assess the responses of phytoplankton to ocean acidification abstract

Autumn 2010

Date time, room	Speaker (Affiliation) Title / Tentative topic

Tue 31 Aug 13:00, AW-KCZ	Takashi Toyofuku, Japanese Agency for Marine-Earth Science and Technology (JAMSTEC), Japan Revealing the foraminiferal calcification and trace elemental distributions abstract
Mon 13 Sept 13:00, AW- N 112	Ahuva Almogi-Labin, Geological Survey of Israel Shifting sediment properties following the Nile damming abstract
Tue 14 Sept 13:00, AW-KCZ	Karsten Kalbitz, Institute for Biodiversity and Ecosystem Dynamics (IBED), Faculty of Science, University of Amsterdam, NL Interactions of organic matter with minerals – ultimate stabilization in soils? abstract
Tue 28 Sept 13:00, AW-KCZ	Arne Micheels, Senckenberg Research Institute and Nature Museum, LOEWE - Biodiversity and Climate Research Centre BiK-F, Frankfurt am Main, Germany Late Miocene climate modelling abstract
Tue 12 Oct 13:00, AW-KCZ	Dick van Oevelen Netherlands Institute of Ecology (NIOO-KNAW), Centre for Estuarine and Marine Ecology, Yerseke, NL Cold-water coral reefs: hotspots in the deep ocean abstract
Ma 1 Nov 13:00, AW-N112	Helle Ugilt Sø Department of Environmental Engineering, Technical University of Denmark, Lyngby Arsenic mobility in limestone aquifers abstract
Tue 9 Nov 13:00, AW-KCZ	Lex Bouwman Netherlands Environmental Assessment Agency (PBL), Bilthoven, NL and Department of Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University, NL Nutrients in coastal seas from global rivers and aquaculture: A scenario analysis of past and future trends abstract
Tue 23 Nov 13:00, AW-KCZ	Jan-Berend Stuut Royal Netherlands Institute for Sea Research (NIOZ), Texel, NL AND Center for Marine Environmental Sciences (MARUM), Bremen, Germany Past & present relationships between desert dust and climate abstract
Tue 30 Nov 13:00, AW-KCZ	Evelyn E. Gaiser Department of Biological Sciences and Southeast Environmental Research Center, Florida International University, Miami, USA Expecting the unexpected: Pandora's box of paradox in an upside-down estuary abstract
Tue 14 Dec 13:00, AW-KCZ	Telm Bover-Arnal Département de Géosciences, Université de Fribourg, Switzerland Sequence stratigraphy of the Aptian carbonate systems exposed in the environs of Aliaga (Iberian Chain, E Spain) abstract

Date time, room	Speaker (Affiliation) Title / Tentative topic

Fri 5 Febr 11:00, KCZ	Minjiang Zhou, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Coastal Eutrophication and Harmful Algal Blooms in China abstract
Tue 2 March 12:00, BBL-0.83	Damien Lemarchand, Laboratoire d'Hydrologie et de géochimie de Strasbourg (LHyGeS), France; Seeking seawater pH over the Earth's history abstract
Wed 3 March 16:00, GCZ	James Russell, Geological Sciences, Brown University, Providence, RI, USA; Molecular records of the late Pleistocene temperature evolution of tropical Africa abstract
Tue 16 March 13:00, BBL-2.83	Oliver Heiri, Palaeoecology, Institute of Environmental Biology, Utrecht University; Aquatic invertebrate remains in lake sediments: indicators of past climatic and ecosystem changes abstract
Wed 24 March 13:00, BBL-0.79	various speakers Minisymposium on the occasion of the thesis defence of Adriana Dueñas-Bohórquez programme
Thu 1 April 10:30, AW-N112	various speakers Tracing microbial life with sulfur isotopes Minisymposium on the occasion of the thesis defence of Marjolijn Stam programme
Tue 13 April 13:00, AW-KCZ	Andrey Shchukarev, Department of Chemistry, Environmental and Biogeochemistry, Umea University, Sweden; X-Ray Photoelectron Spectroscopy and its application in Biogeochemistry abstract
Tue 27 April 13:00 Minn-208	Henk Brinkhuis, Institute of Environmental Biology, Faculty of Science, Utrecht University From Greenhouse to Icehouse at the Wilkes Land Margin, Antarctica - first results of IODP 318 This is a seminar in the frame of the Utrecht-Asia seminar: http://www.geo.uu.nl/Research/Paleomagnetism/people/Guillaume/AclitecWeb.htm
Tue 11 May 13:00, AW-KCZ	Ann Holbourn, Institute of Geosciences, Christian-Albrechts-University, Kiel, Germany Pacific Ocean circulation and climate evolution during the Miocene: Linkages to Antarctic glaciation and ITCZ dynamics abstract
Tue 11 May 13:30, AW-KCZ	Wolfgang Kuhnt, Institute of Geosciences, Christian-Albrechts-University, Kiel, Germany Indo-Pacific Warm Pool circulation and climate during the late Pleistocene: Indonesian Throughflow and monsoon variability abstract
Tue 18 May 13:00, AW-KCZ	Benjamin C. Bostick, Lamont-Doherty Earth Observatory, The Earth Institute at Columbia University, Palisades, NY, USA Linking aqueous geochemistry, mineralogy and bacterial community structures: syntrophic iron reduction in cocultures of sulfate- and iron-reducing bacteria abstract
Tue 8 June 13:00, AW-KCZ	Klaas Nierop, Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University How organic matter characteristics affect the view on soil formation abstract
Tue 22 June 13:00, AW-KCZ	Lennart de Nooijer, Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University Foraminifera, fluorescence and physiology abstract

Date time, room	Speaker (Affiliation) Title / Tentative topic

Aug 27 11:00, AW-N112	Johan Weijers (Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) Branched tetraether membrane lipids – a versatile group of molecular fossils as testimony of past climate change abstract
Sept 3 11:00, AW-C116	Isla Castaneda (Royal Netherlands Institute for Sea Research (NIOZ), Texel, NL) Thermal evolution of the Nile River delta region during the past 27,000 years abstract
Sept 10 11:00, AW-C110	Michael W. Friedrich (Microbial Ecophysiology Lab, Faculty of Biology/Chemistry, University of Bremen, Germany) Rock dissolvers with iron lungs - ecology of iron-reducing microbes abstract
Sept 24 11:00, AW-C110	Virginia Palastanga (Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) Biogeochemical ocean modeling of the marine phosphorus cycle: sources, sinks and sensitivity to sediment redox conditions abstract
Sept 30 10:30, Minn-019	Itzel Ruvalcaba Baroni (Physical Oceanography, Geophysical Institute, University of Bergen, Norway) Mixing due to Internal Waves in Sognefjorden abstract
Oct 8 11:00, AW-C110	Lovisa Zillén (Dept Geology, GeoBiosphere Science Centre II, Lund University, Sweden) Past occurence of hypoxia in the Baltic Sea and the role of climate and antrophogenic forcing abstract
Oct 15 11:00, AW-C110	Veronica Willmott (Royal Netherlands Institute for Sea Research (NIOZ), Texel, NL) Holocene Paleoceanography and Paleoclimatology of the Western Antarctic Peninsula, insights from new biogeochemical proxies abstract
Oct 20 14:00, AW-N112	Susann Henkel (Alfred Wegener Institute for Polar and Marine Research, Bremen, Germany) Early diagenetic dissolution of biogenic barite in sediments of the western Black Sea: Can we track shifts of the depth of the sulphate-methane transition zone? abstract
Oct 22 11:00, AW-C110	Jan Gerritse (Deltares / TNO, Subsurface and Groundwater Systems, Geosciences laboratories, Utrecht) Biodegradation of organic contaminants in the environment abstract
Oct 29 11:00, AW-C110	Ornella Abollino (Department of Analytical Chemistry, University of Torino, Italy) Sequential extractions for the characterization of metal behaviour in sediments. Procedures, data processing, applications to case studies abstract
Nov 12 13:00, AW-C010	Thilo Hofmann (Department of Environmental Geosciences, Center for Earth Sciences, Vienna University, UZA II, Austria) Natural and Engineered Nanoparticles in Aqueous Systems abstract
Nov 19 11:00, AW-C010	Jennifer Dungait (North Wyke Research, Okehampton, Devon, UK) Tracking the fate of organic matter in soils abstract
Nov 26 11:00, AW-C010	Kim Jung-Hyun (Royal Netherlands Institute for Sea Research (NIOZ), Texel, NL) Soil organic carbon input from land to the ocean: Application of the BIT index abstract
Dec 10 11:00, AW-C110	Carsten Schubert (EAWAG, Surface Waters, Kastanienbaum, Switzerland) Methane in freshwater systems - production, oxidation, and emission abstract

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 15 11:00, AW-C116	Pedro De Jesus Mendes (Jacobs University, Bremen, Germany) Organo-mineral aggregates in Submarine Canyons of the Iberian Margin abstract
Jan 22 13:00, AW-C110	Florian Scholz (Leibniz Institute of Marine Sciences, IFM-GEOMAR, Marine Biogeochemistry, Kiel, Germany) Lithium isotopes as a tracer for diagenetic processes within deep subsurface sediments abstract
Feb 19 11:00, AW-N112	Tom Jilbert (Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) Early Holocene climate variability: lessons from high resolution geochemical profiling of Mediterranean Sapropel S1 abstract
Feb 26 11:00, Minn-012	Stefan Schouten (Royal Netherlands Institute for Sea Research (NIOZ), Texel, NL) Tracing living microbes in marine and terrestrial environments by direct analysis of intact polar lipids abstract
Mar 12 11:00, Minn-211	Bo Gustafsson (Baltic Nest Institute, Stockholm Resilience Centre, Stockholm University, Sweden) Physical processes as a driver of biogeochemical variability in the Baltic Sea abstract
Mar 16 14.30, AW-N112	Joan D. Willey (Dept of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina, USA) Rainwater: A Dynamic Episodic Source of Dissolved Fe(II) to Surface Seawater abstract
Mar 19 11:00, Minn-208	Melissa A. Denecke (Institut für Nukleare Entsorgung, Forschungszentrum Karlsruhe, Germany) Spatially resolved synchrotron-based investigations with micrometer resolution on actinide containing heterogeneous, natural geological media abstract
Apr 2 13:00, AW-N112	Joris Gieskes (Scripps Institution of Oceanography, La Jolla CA, USA) Pore Fluid and Sediment Chemistry Venice Lagoon, June 2005 to May 2007 abstract
Apr 23 11:00, AW-C110	Marika Vespa (Flemish organization of scientific research (FWO), Dutch-Belgium Beamline (DUBBLE) @ ESRF, 38043 Grenoble Cedex 9, France) Synchrotron-based spectroscopic investigations of the speciation and distribution of heavy metals in soils abstract
May 7 11:00, AW-C110	Tina Treude (Leibniz Institute of Marine Sciences, IFM-GEOMAR, Dept Marine Biogeochemistry, Kiel, Germany) From whale to chemosynthesis: energy and carbon fluxes at a deep-sea whale fall abstract
May 13 14:00, AW-C010	Frank J. Millero (Rosenstiel School of Marine and Atmospheric Science, University of Miami, USA) The Carbonate System in the World Oceans abstract
May 20 10:30, AW-N112	Seyed Emad Dehkordi (Environmental Engineering & Sustainable Infrastructure, Royal Institute of Technology (KTH), Stockholm, Sweden) Hydrogeological assessment of regolith and fractured hardrock terrains; case studies of Uganda and Sweden abstract
June 4 14:00, AW-N112	Christian März (Microbiogeochemistry, ICBM, University of Oldenburg, Germany) Inorganic geochemistry of Arctic (Plio-/Pleistocene) sediments - From Lomonosov Ridge to Bering Sea abstract
July 2 12:00, TNO- Auditorium	Henning Prommer (CSIRO Land and Water, Australia) Development of a hydrous manganese oxide doped gel probe to measure in situ rates of reductive dissolution. abstract
July 17 11:00, AW-N112	Claire Farnsworth (EAWAG - Wasserresourcen und Trinkwasser (W+T), Duebendorf, Switzerland) Development of a hydrous manganese oxide doped gel probe to measure in situ rates of reductive dissolution abstract

Date time, room	Speaker (Affiliation) Title / Tentative topic

Oct 2 11:00, AW-C116	João P. Trabucho Alexandre (Sedimentology Group, Department Earth Sciences, Faculty of Geosciences, Utrecht University) Circulation in the mid-Cretaceous North Atlantic Ocean abstract
Oct 23 11:00, AW-C116	Natalia Chubar (Dept Earth Sciences - Geochemistry and SOWACOR, Faculty of Geosciences, Utrecht University) The newly formed Center-in-Development SOWACOR abstract
Oct 30 11:00, AW-C116	Ed Tipping (Centre for Ecology & Hydrology Lancaster, United Kingdom) Cation-humic interactions – modelling and applications abstract
Nov 6 11:00, KCZ	Michael Böttcher (Leibniz-Institut für Ostseeforschung Warnemünde, Germany) Biogeochemistry of sedimentary element transformations: Processes facing Noah´s flood abstract
Nov 27 11:00, Minn 019	Annette Hofmann (Univ. Sciences and Technology Lille 1, Dept. Earth Sciences, Villeneuve d'Ascq, France) Hydrous ferric oxide formation in the presence of aluminium: What « mineral » is it? Microscopic and atomic scale investigations abstract
Dec 1 11:00, C 008	Sabine Pols (student Geochemistry Utrecht - Graduation Seminar in English) Long-term sorption behaviour of PAHs onto harbour sludge abstract
Dec 10 14.30 Minn-016	Minisymposium (organised by the Dept. Earth Sciences - Geochemistry) programme Climate records and geochemical processes in marine sediments
Dec 11 15:00, N 112	Ilse Reijlink (student Geochemistry Utrecht - Graduation Seminar in English) The sustainability of the remediation technique In Situ heavy Metal Precipitation (ISMP) based on a detailed analysis of a column experiment abstract

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 10 11:00, AW-C010	Giuseppe Cortese (AWI, Bremerhaven (Germany) and GNS Science, Lower Hutt, Wellington (New Zealand)) abstract Siliceous microfossils and biogenic silica: Tools to decipher ocean history
Jan 24 11:00, AW-C010	Véronique Schoemann (Ecologie des Systèmes Aquatiques, Université Libre de Bruxelles, Belgium) abstract Iron biogeochemistry in the Southern Ocean
Jan 31 11:00, GCZ	Gideon M. Henderson (Department of Earth Sciences, Oxford, England) abstract Ocean chemistry: Metals as proxies and proxies for metals
Feb 7 11:00, AW-C010	Benjamin C. Bostick (Dartmouth College, Department of Earth Sciences, Hanover NH, USA) abstract Relative rates of iron and sulfate reduction rates regulate groundwater arsenic concentrations in Cambodia
Feb 14 11:00, Minn-021	Mariëtte Wolthers (Department of Earth Sciences - Geochemistry / Stratigraphy & Paleontology, Faculty of Geosciences, Utrecht University) abstract Zooming in on biomineralisation processes: carbonate surface modeling put in perspective
Feb 21 11:00, Minn-021	Christian Bjerrum (Geological Institute - University of Copenhagen, Denmark) abstract Developments in modelling biogeochemical-stratigraphic dynamics over geological timescales
Feb 28 11:00, AW-C010	Iana Tsandev (Department of Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) abstract Modeling Phosphorus Cycling and Carbon Burial during Cretaceous Oceanic Anoxic Events
Mar 6 11:00, Minn-021	Gert de Lange (Department of Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) abstract Proxies preservation in Organic-rich units of Madeira abyssal plain and Mediterranean as related to oxic Early diagenesis (POMME)
Mar 13 11:00, AW-C010	Tim Jickells (School of Environmental Sciences, University of East Anglia, Norwich, UK) abstract Atmospheric inputs to the oceans and their impacts
Mar 20 11:00, AW-N112	Richard Pancost (School of Chemistry (Organic Geochemistry Unit and Biogeochemistry Research Centre), University of Bristol, UK) abstract Molecular biomarkers and their isotopes: Interrogating ancient carbon cycling during greenhouse climates
Mar 26 11:00, AW-C010	Christina Honeycutt (Nordic Center for Earth Evolution, University of Southern Denmark, Odense, Denmark) abstract Proterozoic Ocean Biogeochemical Modeling
Mar 27 11:00, AW-C108	Jack Middelburg (NIOO-KNAW, Centre for Estuarine and Marine Ecology, Yerseke, NL, and Department of Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) abstract The role of animals in sediment biogeochemistry
Mar 27 15:00, AW-N112	Pascal Philippot (Geobiosphere Actuelle et Primitive, Institut de Physique du Globe de Paris, France) abstract Early Archean microorganisms preferred elemental sulfur not sulfate
Apr 3 11:00, AW-C010	Josette Garnier (UMR 7619 Sisyphe, Université Pierre et Marie Curie, Paris, France) abstract Ecological functioning of the regional scale of drainage networks in contrasted hydrological regimes and human activities. Impacts to the coastal zones.
Apr 24 11:00, Minn-021	Ashaki A. Rouff (Laboratory for Energy and Materials Cycles, Paul Scherrer Institut, Villigen PSI, Switzerland) abstract Answering environmental questions using laboratory- and molecular-scale approaches
May 8 11:00, Minn-021	Ian Jarvis (School of Earth Sciences and Geography, Kingston University London, UK) abstract Multiproxy approaches for documenting palaeoenvironmental change: extreme sea-level, climate and palaeoceanographic events of the Cenomanian (100 – 94 Ma) greenhouse Earth
May 29 11:00, AW-C010	Kurt Friese (Helmholtz Zentrum fur Umweltforschung, Magdeburg, Germany) abstract Acidic Mine Pit Lakes in East Germany – Groundwater-Lake Water-Interactions and Biogeochemical Studies of the Fe-S-C-System
June 5 11:15, GCZ	Brad Sageman (Dept Earth and Planetary Sciences, Northwestern University, USA) abstract Recent advances in the study of Cretaceous OAE’s
June 12 11:00, AW-C010	Piet Lens (UNESCO-IHE Institute for Water Education (UNESCO-IHE), Delft, The Netherlands ) abstract Supplementation of trace metals to optimise anaerobic bioconversions
June 19 11:00, AW-C010	Martin Thullner (Dept Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany, and Dept Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) abstract Impact of mass transfer restrictions and dilution processes on microbially induced stable isotope fractionation
June 26 11:00, AW-C010	Simon Poulton (School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, UK) abstract Dynamics and consequences of early Earth oxygenation
July 21 14:00, AW-N112	Claudia E. Casalino (Torino University, Italy) abstract Study of distribution and mobility of inorganic components in Antarctic sediments with spectroscopic techniques
August 5 11:00, AW-N112	Ana Teresa Lima (Department of Technology, Polytechnic Institute of Coimbra, Portugal) abstract Fly ashes contaminants removal - the electrodialytic process potentialities

Date time, room	Speaker (Affiliation) Title / Tentative topic

Aug 15 14:00, N112	Gert Vlaming (student Geochemistry - Graduation Seminar in English) abstract Modeling anaerobic methane oxidation in coastal margin sediments
Aug 31 11:00, N112	Philip Messtorff (MSc student Biological Oceanography at Christian Albrechts Universität Kiel (CAU) and University of Southern Denmark (SDU) Odense) abstract Economics of Shooting in Archer Fish (Toxotes jaculatrix): Can experience influence the prey size dependent force-scaling used by archerfish?
Aug 31 14:00, N112	Abhinav Singh Gill (student Geochemistry - Graduation Seminar in English) abstract Organic Geochemical assessment of the Posidonia Shale in the Netherlands
Sept 4 10:00, N112	Julia van Winden (student Geochemistry - Graduation Seminar in English) abstract Mobility and availability of metals and metalloids in contaminated sediment from the Noord-Hollandskanaal surrounding Slochtereiland, The Netherlands
Sept 4 11:00, N112	Catherine Laurent (University of Paris 1, Laboratory of Biogeography and Ecology, France, and the Research Institute for Development (IRD) in Bangkok) abstract Influence of salinity, pH and agricultural practices on clay behaviour in Northeast Thailand paddy fields
Sep 13 15:00, N112	Minisymposium (organised by the Dept. Earth Sciences - Geochemistry) programme Biogeochemistry of subterranean Estuaries
Sept 19 11:00, N112	Geertje Pronk (student Geochemistry - Graduation Seminar in English) abstract Modelling Nitrogen cycling and retention in Wilson Inlet, a seasonally closed South-West Australian Estuary
Sept 20 11:00, Min202	Vasso Alexandratos (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Influence of reductive dissolution of iron oxides by S(II) on uranium mobility
Oct 4 11:00, Min202	Danny Reible (The University of Texas at Austin, USA) abstract Defining the Availability and Mobility of Contaminants in Sediments
Oct 12 11:00, N 112	Bernard Boudreau (Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada) abstract Motion in a Veiled World: Animals and Bubbles in Sediments
Oct 18 11:00, Min202	Marc De Batist (Dept of Geology and Soil Science, Ghent University, Belgium) abstract Gas hydrates and their role in the climate system: a critical look
Oct 22 11:00, N 112	Brice Robert (MSc student Université de Bordeaux, France) abstract Climatic variability in the Alboran Sea during the glacial termination V (MIS 11/12)
Oct 25 11:00, Min202	Harald Strauß (Geologisch-Paläontologisches Institut und Museum der Westfälischen Wilhelms-Universität Münster, Germany) abstract Multiple stable sulfur isotopes - lessons to learn for the Precambrian atmosphere-ocean system
Nov 1 11:00, Min202	Nora H. de Leeuw (Department of Chemistry, University College London, UK) abstract Modelling dissolution and growth processes at silica surfaces
Nov 8 11:00, Min202	Janet Hering (Swiss Federal Institute of Aquatic Science & Technology (Eawag), Dübendorf, Switzerland) abstract “Chinatown” Revisited: Arsenic and the Los Angeles Aqueduct
Nov 15 11:00, Min202	Marcel Kuypers (Max-Planck-Institut for Marine Microbiology, Bremen, Germany) abstract The role of anammox bacteria for the oceanic loss of nutrient nitrogen
Nov 22 11:00, Min202	Jan P. Amend (Dept of Earth and Planetary Sciences, Washington University, St. Louis, USA) abstract Microbial Geochemistry in Shallow-Sea Hydrothermal Systems
Nov 29 11:00, Min202	Ludo Diels (Flemish Institute for Technological Research (Vito), Mol, Belgium) abstract Risk management of heavy metals in soil and groundwater by influencing their speciation
Dec 13 11:00, Min202	Eric Achterberg (National Oceanography Centre Southampton, University of Southampton, UK) abstract The role of iron in ocean productivity

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 11 14:00, C110	Marjolijn Stam (Dept Earth Sciences - Petrologie, Faculty Geosciences, Utrecht University) abstract How far can we go in using sulfur stable isotopes to investigate modern and ancient biospheres?
Jan 18 11:00, C116	Christian Griebler (GSF – Forschungszentrum für Umwelt und Gesundheit, Institut für Grundwasserökologie, Germany) abstract The plume fringe concept - Ecology and Biochemistry of organic contaminant degradation in groundwater ecosystems
Jan 22 11:00, C010	Michail K. Ivanov (Geological Faculty, UNESCO-MSU Centre for Marine Geosciences, Moscow State University, Moscow, Russian Federation) abstract Cold seepage and mud volcanism in the Black Sea.
Jan 25 11:00, KCZ	Thilo Behrends (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Coupling of iron and uranium redox transformations - myths and facts
Feb 1 11:00, KCZ	Sonja Selenska-Pobell (Dept Biogeochemistry, Inst Radiochemistry, FZD-Rossendorf, Dresden, Germany) abstract Microbial response to U(VI) treatments of uranium mining waste pile samples
Feb 15 11:00, N112	Martin Elsner (Institute of Groundwater Ecology, GSF - Helmholtz Center for Environment and Health, Neuherberg) abstract Linking Observable Stable Isotope Fractionation to Transformation Pathways of Organic Pollutants
Feb 22 11:00, N112	Tim Ferdelman (Max-Planck-Institute for Marine Microbiology, Department of Biogeochemistry Bremen, Germany) abstract Biogeochemistry of deeply buried marine sediments: just how active is the "deep" biosphere
Mar 1 11:00, N112	Philippe Van Cappellen (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Microbial Iron Reduction in Coastal Sediments: Fe(III) bioavailability, Microorganisms and Environmental Significance
Mar 8 11:00, N112	Volker Brüchert (Department of Biogeochemistry, Max-Planck Institute for Marine Microbiology, Bremen, Germany) abstract Climate-scale temperature effects on sulfate reduction in Arctic and temperate environments
Mar 15 11:00, N112	Andy Dale (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Reactive-transport modeling of stable sulfur isotope distributions in surface sediments of the Namibian upwelling system
Mar 22 11:00, N112	Kathleen R. Johnson (Dept. of Earth Sciences, Oxford University, Oxford, United Kingdom) abstract Developing seasonal resolution monsoon records: A multi-proxy speleothem approach
Mar 29 11:00, N112	Alette Langenhoff (Microbiology lab TNO-Utrecht, the Netherlands) Introduction Microbiology lab TNO-Utrecht (formerly TNO-Apeldoorn)
Apr 12 11:00, N112	Laurent Richard (Nancy-Université, Département des Sciences de la Terre, Vandoeuvre-lès-Nancy, France) abstract Thermodynamics of organic/inorganic interactions in diagenetic and hydrothermal systems
Apr 26	no seminar this week!
May 1 11:00, Col. 1	Min Yang (Technical University of Denmark, Denmark) abstract Measuring inhibition of nitrification via a respirometric technique & Cation exchange in the Valreas Basin, France.
May 3 11:00, Min016	Philipp Böning (CEREGE, Aix-en-Provence, France) abstract Structural and chemical information extracted from µXRF maps and profiles: applications to Late Quaternary Arabian Sea sediments
May 3 13:00, KCZ	Haithem Ali (Hamburg University of Technology, Germany) abstract Modelling of multi species transport by using results of a calibrated groundwater model and a spatially distributed contaminant source
May 10 11:00, N112	José Mogollón Lee (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Methane gas formation and transport in marine sediments
May 11 11:00, N112	Haydon Mort (University of Neuchâtel, Switzerland) abstract What do black shales and red beds have in common?
May 11 13:30, N112	Jasmin Mertens (RWTH Aachen University, Laboratory for organic-geochemical Analysis, Institute of Geology and Geochemistry, Aachen, Germany) abstract "the fracture and fault system in Utah" & "long term fate of organic contaminants in the seepage water of a deposit landfill"
May 16 11:00, C116	Michael D. Krom (Earth and Biosphere Institute, School of Earth and Environment (Earth), Leeds University) abstract Insights into global nutrient controls: New understandings from studying how the P-Limited Eastern Mediterranean functions?
May 18 11:00, N112	S.M. Mazedur Rahman (Department of Hydrology and Hydraulics, Vrije Universiteit of Brussel, Belgium) abstract Analysis of a multiple pumping test conducted in a layered unconfined aquifer
May 21 11:00, C116	Dan Reed (Department of Oceanography, Dalhousie University, Halifax, NS) abstract Quantifying Darwin's Last Idea
May 24 11:00, Min016	Annette Hofmann (Univ. Sciences and Technology Lille 1, Dept. Earth Sciences, Villeneuve d'Ascq, France) abstract Surface complexation modelling as a tool to quantitatively approach colloid mobilization in porous media - a study of citrate induced release of ferrihydrite from sandy sediment
May 24 14:00, Z220	Babak Shafei (Sharif University of Technology, Civil Engineering Department) abstract A Semi-Analytical Solution of Delineation of Capture Zone of Wells (Skin Effect and Non-Steady Flow)
Jun 7 11:00, N112	Sarah Aciego (ETH Zurich - Institute of Terrestrial Ecology - Switzerland) abstract Pleistocene ice and paleo-climate: evidence from Taylor Glacier, Antarctica
Jun 14 11:00, N112	Rob Raiswell (Earth Sciences, School of Earth and Environment, University of Leeds, Leeds, UK) abstract Clastic fluxes of iron (oxyhydr)oxide nanoparticles into the ocean: Can icebergs deliver bioavailable Fe to the oceans?
Jun 19 11:00, N112	Peter Kraal (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Decreased burial of P in the 'anoxic' proto-North Atlantic at the Cenomanian-Turonian boundary (94 Ma BP)
Jun 26 11:00, N112	Cheryl van Kempen (student Geochemistry - Graduation Seminar in English) abstract Towards a global coastal typology for modeling nutrient fluxes at the land-ocean interface: an application to lagoons
Jun 28 14:00, N112	Pieter Bots (student Geochemistry - Graduation Seminar in English) abstract Uranium Mobility in Subsurface Aqueous Systems The Influences of Different Redox Conditions, as Determined by Flow-through Experiments
Jul 3 11:00, N112	Hilke Giles (National Institute of Water and Atmospheric Research (NIWA) Hamilton, New Zealand) abstract Modelling sediment diagenesis to assess benthic impacts of marine aquaculture
Jul 12 11:00, N112	Mark Siddall (Geochemistry Lamont-Doherty Earth Observatory, University of Columbia, Pallisades, NY, USA) abstract Modeling the relationship between ²³¹Pa/²³⁰Th distribution in North Atlantic sediment and Atlantic meridional overturning circulation
Jul 19 11:00, N112	Jinping Han (IHE, Delft, the Netherlands) abstract Transient modelling of groundwater flow in Beijing Plain
Jul 26 11:00, N112	Matt Bandel (MSc candidate in Geochemistry and System Earth Modeling - Graduation Seminar in English) abstract Box-Modeling Approaches to Characterizing the Entropy Propagation in the Marine Environment
Jul 31 14:00, N112	Karen de Roo (student Geochemistry - Graduation Seminar in English) abstract Arsenic in Zeeland. A study towards the behaviour of arsenic in the soil, sediment and groundwater system of the province of Zeeland, on provincial, regional and local scale

Date time, room	Speaker (Affiliation) Title / Tentative topic

Sep 14 11:00, BBL 107A	Christoph Heinze (University of Bergen - Geophysical Institute - Norway) abstract The glacial-interglacial CO₂ variation revisited - experiments with a long-term biogeochemical ocean model
Sep 21 11:00, BBL 107A	Olaf Schuiling (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Mineral sequestration of CO₂ and recovery of the heat of reaction
Sep 28 11:00, KCZ	Alina Stadnitskaia (Royal Netherlands Institute For Sea Research - NIOZ, Texel) abstract Biogeochemical processes at deep-sea fluid/methane venting environments
Oct 5 11:00, C010	Evert Jan Elzinga (ETH Zurich - Institute of Terrestrial Ecology - Switzerland) abstract The role of adsorption in metal and uranyl partitioning during calcite crystal growth
Oct 10 14:00, TNO	Minisymposium (organised by the Geochemische Kring and the Dept. Physical Geography) programme Spatial Geochemistry
Oct 12 11:00, N112	Susann Vollrath (University of Braunschweig, Germany) abstract Investigation of sulphur bacteria and the chemical bonding forms of heavy metals and sulphur in the sediments of the open pit lake Aznalcóllar, Spain
Oct 13 14:00, N112	Jan Jacob Stolte (Graduation seminar in English) abstract Arsenic and barium in Fe (hydr)oxides
Oct 16 13:30, TNO	Minisymposium (organised by the Geochemische Kring and the Dept. Earth Sciences - Geochemistry) programme Biogeochemistry of lakes and rivers
Oct 19 11:00, C010	Andreas Moll (University of Hamburg - Institut für Meereskunde - Germany) abstract Review of 3D biogeochemical/ecological modelling of the North Sea shelf system: Model results, model validation and perspectives of modelling bentho-pelagic coupling
Oct 24 14:00, N112	Thomas Appel (Graduation seminar in English) abstract Electroosmosis and the difficulty of isolating this transport process in laboratory experiments
Oct 25 11:00, N112	Minke Fokkema (Graduation Seminar, in English, UU, NL ) abstract Fading-out approach: an experimental protocol to assess the phytoextraction duration of heavy metal contaminated soils
Nov 2 11:00, C010	Daniel Mourad (Dept Physical Geography, Faculty Geosciences, UU, NL) abstract Factors explaining nutrient export from a lowland catchment
Nov 9 11:00, C110	Natalia Chubar (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Assessment of ion exchange, surface and adsorptive properties of live and heat-killed Shewanella putrefaciens
Nov 16 11:00, C110	Sam Shaw (University of Leeds - School of Earth and Environment - England) abstract Trace elements and mineral growth: From nanoparticles to biomineralisation
Nov 23 11:00, C110	Goulven Laruelle (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Modeling nutrient transformations in the coastal zone at the global scale
Nov 29 11:00, BBL 768	Christina de la Rocha (AWI - Geosciences-Marine Geology and Paleontology - Germany) abstract The Sinking of POC and the Efficiency of the Biological Pump
Dec 14 11:00, C110	Nils Holm (Stockholm University - Department of Geology and Geochemistry - Sweden) abstract Alkaline fluid circulation in ultramafic rocks and abiotic formation of nucleotide constituents
Dec 15 13:00, N 112	Sara Borin (University of Milano, Dipartimento Scienze e Tecnologie Alimentari e Microbiologiche - Italy) abstract Prokaryote diversity, ecophysiology and biotechnology in deep hypersaline anoxic submarine lakes of the eastern Mediterranean Sea

Date time, room	Speaker (Affiliation) Title / Tentative topic

Feb 2 11:00, Min 208	Jos Verhoeven (Landscape Ecology, Institute of Environmental Biology, UU, NL) abstract Lateral connections in landscapes: towards Operational Landscape Units
Feb 9 11:00, C110	Leon Lamers (Dept Aquatic Ecology & Environmental Biology, Radboud University Nijmegen, NL) abstract Biogeochemical controls on CO₂ and CH₄ fluxes in peatlands; from intracellular symbionts to plant-environment interactions
Feb 16 11:00, Went N406	Philippe Van Cappellen (Dept Earth Sciences - Geochemistry, Faculty Geosciences, UU, NL) abstract Incorporating geomicrobiology in reactive transport models
Feb 23 11:00, Went N406	Michel Meybeck (Université Pierre et Marie Curie, U.M.R. Sisyphe, Paris, France) abstract Long-term metal contamination in the Seine basin: DPSIR (Drivers, Pressures, State, Impact, Response) Approach
Mar 2 11:00, C116	Merel Soons (Landscape Ecology, Institute of Environmental Biology, UU, NL) abstract Research in Iceland on interaction between global warming and wetland nutrient availability.
Mar 9 11:00, C116	Geert van Wirdum (TNO - National Geological Survey, Utrecht, NL) abstract Diagnosis and process control for wetland policy and management.
Mar 16 11:00, Went N406	Marc Vissers (Landscape Ecology Geo-informatics and Hydrology, Faculty Geosciences, UU, NL) abstract The sources and controls of minor and trace elements in groundwater in sandy aquifers
Mar 23 11:00, Went N406	Karsten Schulz (Dept Applied Landscape Ecology, UFZ - Centre for Environmental Research Leipzig, Germany) abstract Larger scale hydrological modelling: Recent trends and future challenges
Mar 30 11:00, C116	Roland Bobbink (Landscape Ecology, Institute of Environmental Biology, UU, NL) abstract Plant species richness and the exceedances of critical loads for N deposition: an overview
Apr 6 11:00, C116	Jan Willem van Groenigen (Alterra, Dept. of Soil Science Wageningen University and Research Center, NL) abstract Tracing ¹⁵N through soils and landscapes, with special attention to N₂O formation
Apr 11 09:30, KCZ	Minisymposium (organised by the Geochemische Kring and the Dept. Earth Sciences - Geochemistry) programme Environmental Biogeochemistry of Metals
Apr 13 11:00, Went N406	Pierre Regnier (Dept Earth Sciences - Geochemistry, Faculty Geosciences, UU, NL) abstract Reactive-transport modeling of a river-estuarine-coastal zone system: from process-oriented studies to operational modeling
Apr 20 11:00, Went N406	Christophe Monnin (Laboratoire Mécanismes de Transfert en Géologie, Toulouse, France) abstract Barium geochemistry in the marine environment: biogenic and inorganic controls of barite formation
Apr 27 11:00, C116	Mariet Hefting (Landscape Ecology, Institute of Environmental Biology, UU, NL) abstract Nitrous oxide hotspots and hot moments in riparian wetland
May 4 11:00, C116	Erik Jeppesen (National Environmental Research Institute, Silkeborg, Denmark) abstract Shallow lakes´ response to changes in climate. A gradient study from Northern Greenland to Greece and Florida.
May 11 11:00, Went N406	Caroline Slomp (Dept Earth Sciences - Geochemistry, Faculty Geosciences, UU, NL) abstract The Global Marine Phosphorus Cycle: Sensitivity to Oceanic Circulation and Sealevel Change
May 18 13.30, Min 208	Minisymposium (organised by the Reactive Transport Modeling group of the Dept. Earth Sciences - Geochemistry) programme Reaction-transport modeling of the land-ocean transition zone
May 23 (Tuesday) 11:00, Went N406	Chris Craft (School of Public and Environmental Affairs Indiana University, Bloomington, USA) abstract The Challenges of Restoring Wetlands in Natural, Agricultural and Urban Landscapes
Jun 1 11:00, C110	Paul Bodelier (NIOO - KNAW Centre for Limnology, Nieuwersluis, NL) abstract Does microbial diversity matter for methane fluxes !? Examples from soils and sediments.
Jun 8 11:00, C110	Pascal Boeckx (Laboratory of Applied Physical Chemistry - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Belgium) abstract Hidden soil N-transformation processes in pristine old-growth forests of southern Chile
Jun 15 11:00, Went 406	Anna Gorbushina (Institut für Chemie und Biologie des Meeres (ICBM), Carl von Ossietzky Universität Oldenburg, Germany) abstract Life on the rocks: microscopic landscapes under the influence of microbes and atmosphere.
Jun 21 11 -12, C.008	Emilie Strady (University of Bordeaux, France) abstract Pump-CTD-System for trace metal sampling with a high vertical resolution. A test in the Gotland Basin, Baltic Sea.
Jun 22 11:00, Went 406	Guus Loch (Dept Earth Sciences - Geochemistry, Faculty Geosciences, UU, NL) abstract The effect of induced electrical gradients during hyperfiltration in clay.
Jul 7 11:00, N 112	Peter Kraal abstract Mineralisation of coniferous litter as influenced by (combined) additions of tannins and aluminium
Aug 10 11:00, N 112	Diego Bustos abstract Zinc mobility in groundwater: reactive transport modeling of acid drainage and contaminant behavior at a galvanization site

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 5 11:00, C008	Leticia Cotrim da Cunha (Max Planck Institute for Biogeochemistry, Jena, Germany) abstract Impact of river sources of P, Si and Fe on global and coastal ocean biogeochemistry
Jan 11 14:00, C108	Sandra Arndt (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Coupling between sediment dynamics and biogeochemistry in tidal estuaries: A Model approach
Jan 18 11:00, C108	Matt Charette (Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, USA) abstract Biogeochemical Cycling in a Subterranean Estuary: Implications of Groundwater-Seawater Interactions on Chemical Fluxes to the Coastal Ocean
Jan 20 13:30, N112	Madelon van den Hooven (Graduation Seminar, UU, NL) abstract Geochemistry of water, spm and sediment in lake Haringvliet, 1970-2003
Feb 1 11:00, C108	Christelle Hyacinthe (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Reactive ferric iron in sediments: chemical versus microbial extractions
Feb 8 11:00, C108	Gia Destouni (Department of Physical Geography & Quaternary Geology Stockholm University, Sweden ) abstract Hydrological transport modelling in catchments and coastal areas
Feb 17 15:00, N 112	Caroline Schmidt (Graduation Seminar, in English, UU, NL ) abstract The use of natural radon and radium isotopes as geochemical tracers in intertidal environments influenced by submarine groundwater discharge
Feb 22 11:00, C108	Sonja Schulte (Institut für Chemie und Biologie des Meeres -Organische Geochemie- Carl von Ossietzky Universität Oldenburg, Germany) abstract Potential of geochemical proxies in the reconnaissance of the mechanisms driving past atmospheric pCO₂ variations.
Mar 7 16:00, N112	Marian Keuning (Graduation Seminar, in English, UU, NL ) abstract Phosphate behaviour during seepage in a sandy soil system
Mar 8 11:00, C108	Frédéric Gazeau (NIOO-KNAW-CEME, Yerseke, The Netherlands ) abstract Metabolism of coastal ecosystems: from the local scale (Randers Fjord, Palma Bay and Scheldt estuary) to the European scale
Mar 15 11:00, C108	Volker Brüchert (Department of Biogeochemistry, Max-Planck Institute for Marine Microbiology, Bremen, Germany) abstract What drives rates of carbon mineralization in anaerobic sediments?
Mar 23 13:00, C010	Vincent Mastalerz (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract High gas venting at the Nile deep sea fan
Mar 29 11:00, C108	Andreas Kappler (Center for Applied Geoscience -ZAG-, Geomicrobiology, Eberhard-Karls-University Tübingen) abstract Mechanisms and implications of microbial Fe(III)-reduction
Apr 5 11:00, C108	Socratis Loucaides (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Surface charge density and reactivity of biogenic silica: a coupled titration-dissolution approach
Apr 5 16:00, C116	P.W.G. van Geffen (Graduation Seminar, in English, UU, NL ) abstract Geochemistry of the Phoenix Ni-Cu-PGE Deposit,Francistown, Botswana
Apr 12 11:00, C108	Ian M. Head (School of Civil Engineering and Geosciences University of Newcastle, Newcastle upon Tyne, UK ) abstract On the beach or underground; microbes make a meal of our oil
Apr 19 11:00, C108	David Nedwell (Department of Biological Sciences, University of Essex) abstract The biogeochemistry of nitrogen in a nutrified estuary
Apr 26 11:00,BBL160	Kirsten Kuesel (Research group for Limnology, Institute of Ecology, Friedrich-Schiller University of Jena, Germany) abstract >From the microscale to the macroscale: Effect of Fe(III)- and sulfate-reducing bacteria on element fluxes in a forested catchment
May 3 11:00, C116	Christian Hensen (Department Marine Environmental Geology, IFM-Geomar, University of Kiel, Germany) abstract Geochemistry of mud volcano fluids and gas hydrates along Costa Rica continental margin
May 10 11:00, C 108	Nikolaj Walraven (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Lead isotopic signature, behaviour and fate of traffic-related lead pollution in roadside soils in The Netherlands
May 11 11:00, C108	Kamuran Yasadi (Graduation Seminar, in English, UU, NL ) abstract The effect of Al on the surface charge of biogenic silica
May 17 11:00,C116	Claudette Spiteri (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Biogeochemistry of subterranean estuaries
May 18 11:00,C116	Vasso Alexandratos (Marine Sciences Research Center, State University of New York, Stony Brook, NY, USA) abstract Arsenate Uptake by Calcite: A Macroscopic and Spectroscopic Study
May 24 11:00, C116	Jack van de Vossenberg (Dept. Microbiology Radboud University Nijmegen, The Netherlands) abstract Marine anaerobic ammonium oxidizing bacteria
May 30 14:00, KCZ	Minisymposium (organised by the Geochemische Kring and the Dept. Earth Sciences - Geochemistry) programme Fluxes and Driving Forces in Clays, Relevance of their coupling in practice
Jun 7 11:00, C116	Marc Alperin (Marine Sciences University of NorthCarolina at Chapel Hill, USA) abstract Anaerobic sulfide oxidation: Carbon-Sulfur-Metal interactions in anoxic marine sediment
Jun 9 15:00, C008	Minisymposium programme Marine Geochemistry
Jun 14 11:00, C116	Rick Canavan (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Estuarine restoration of a coastal freshwater lake: Potential response of sediment nutrient cycles to salinization

Date time, room	Speaker (Affiliation) Title / Tentative topic

Aug 31 11:00, C110	Jeffrey Abell (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Relating denitrification rates to organic carbon availability in aquatic sediments using plug flow-through reactors.
Sep 7 11:00, C110	Thomas Nägler (Gruppe Isotopengeologie, Institut für Geologie, Universität Bern, Switzerland) abstract Mo isotope signatures in the marine environment: A progress report
Sep 14 11:00, C110	David R. Aguilera (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract A Knowledge-Based Reactive Transport approach for the simulation of biogeochemical dynamics in Earth systems.
Sep 20 13:00, N112	Tom Jilbert (University of Edinburgh, UK) abstract Temperature, First Flowering Dates And Short- Term Phenological Change: Identifying The Relationships Using Archive Data From The Royal Botanic Gardens, Edinburgh
Sep 21 11:00, C110	Maarten Saaltink (Dept Geotechnical Engineering and Geosciences, School of Civil Engineering, Technical University of Catalonia, Barcelona, Spain) abstract Modeling sulfide oxidation in the unsaturated zone
Sep 28 11:00, C110	Steeve Bonneville (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Kinetic model for microbial Fe(III) reduction
Oct 5 11:00, C110	Kristina Straub (Microbial Ecology, Dept Biology,University of Konstanz, Germany) abstract Anaerobic, microbial cycling of iron at neutral pH
Oct 12 11:00, C110	Katja Heister (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Quantifying the effects of membrane potential in chemical osmosis across clay membranes
Oct 14 13:30, Zaal 208	Geochemische Kring abstract Lezingenmiddag Geochemische Kring : Thema: Experimental & Analytical Advances in Geochemistry (in English!)
Oct 19 11:00, C110	Dirk Schäfer (Institute Geosciences,Applied Geology, Christian-Albrechts-Universität, Kiel, Germany ) abstract Simulation of natural attenuation processes and the "Virtual Aquifer"-approach
Oct 26 11:00, C110	Gino Locadia(Graduation Seminar, UU, NL) abstract Grondwaterkwaliteit Utrechtse Heuvelrug. Een koppeling tussen de Grondwaterstroming en Meetgegevens van de grondwaterkwaliteit. (In Dutch!)
Nov 2 11:00, C110	Marcus Elvert (University Bremen, Geosciences, Organic Geochemistry lab) abstract The study of microbial biogeochemical processes using molecular isotopic techniques
Nov 9 11:00, C110	Jacqueline Claessens (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Acid-base activity of live cells: Proton and metal binding in bacterial cell walls.
Nov 12 11:00, N112	Maaike de Winkel (Graduation Seminar in English, UU, NL) abstract Diffusion of salt in clay:Diffusion of NaCl through bentonite
Nov 12 13:00, N112	Hans Dürr (Université Pierre et Marie Curie, Paris, France) abstract Estimating riverine material fluxes to the coastal zone using a global segmentation
Nov 12 14:00, N112	Kevin Joosten (Graduation Seminar in English, UU, NL) abstract Drinking water sludge: Applicability of iron sludge from drinking water purification for fixation of S and P in waste water treatment plants
Nov 23 11:00, C 108	Gert-Jan Reichart (Alfred Wegener Institute for marine and polar research, Bremerhaven, Germany; & Department of Earth Sciences - Geochemistry, Faculty of Geosciences, Utrecht University) abstract Trace metal incorporation in biogenic calcite and application as environmental proxy
Nov 25 11:00, N 112	Andrea Gootjes (BSc seminar in English, UU, NL) Variations in organic- and carbonate C contents in sediments from Sicily Channel; relevance to paleoclimate and sediment sources
Nov 30 11:00, C 108	Vibeke Nyvang (Technical University of Denmark DTU) abstract Degradation of organic matter in a shallow sandy aquifer during a forced saltwater intrusion experiment
Dec 7 11:00, C 108	Goulven Laruelle (Dept Earth Sciences - Geochemistry, Faculty Geosciences, Utrecht University) abstract Modelling the silicon cycle in the bay of Brest
Dec 14 11:00, C 108	Andrea Koschinsky (School of Engineering and Science, International University Bremen, Germany) abstract The Importance of Element Speciation for Geochemical Processes in Different Marine Environments

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 6 11:15, C116	Mariëtte Wolthers (Geochemistry, Utrecht University, NL) abstract The surface chemistry of carbonates.
Jan 13 11:15, C116	Andreas Hübner (Geochemistry, Utrecht University, NL) abstract Biogeochemistry of deep hypersaline anoxic basins in the eastern Mediterranean
Jan 14 11:15, C118	Sandra Arndt (Dept. Microbiogeochemistry, ICBM, Oldenburg, Germany) abstract Cretaceous black shales as active bioreactors in sediments from ODP LEG 207
Jan 20 11:15, C116	Liane Benning (School of Earth Sciences, University of Leeds, UK) abstract How do minerals form?: questions from nature, answers from the lab
Jan 26 11:15, C116	Marc Alperin (Dept. of Marine Sciences, University of North Carolina at Chapel Hill, USA) abstract Anaerobic methane oxidation by archaea/sulfate-reducing bacteria aggregates: Thermodynamic, physical, and isotopic constraints
Jan 27 13:30, C116	Pieter Vroon (Vrije Universiteit Amsterdam, NL) abstract The MC-ICPMS at the Free University: Applications of Silicon- and Iron isotopes in geobiology
Feb 10 11:15, C110	Dr. Andy Dale and Gert Vlaming (Geochemistry, Utrecht University, NL) abstract Modelling anaerobic oxidation of methane in marine sediments: preliminary results
Feb 17 9:00 - 11:00, C118	Elise Leenaarts abstract (Graduation Seminar, UU, NL) Stability of asphaltenes in crude oil Patrick van Hemert abstract (Graduation Seminar, UU, NL) CO₂ sequestration in coal: Effect of multi-component gas sequestration
Feb 27 11:15, C008	Dr Ute Berg (Inst. for Tech. Chemistry, Water- and Geotechnology Div., Res. Centre of Karlsruhe, D) abstract PHOSPHORUS IN THE ENVIRONMENT: Development of Ecotechnologies to Solve Global P-Problems
Mar 2 11:15, C110	Robert E. Trouwborst (College of Marine Studies University of Delaware, Lewes, USA) Yellowstone Hot Spring Microbial Mats and Iron Mineral Formation / Soluble Mn(III)Complexes Present In Suboxic Regions Of The Black Sea And Chesapeake Bay.
Mar 3 11:15, C008	Prof. Roberto Pastres (Dipartimento di Chimica Fisica, University of Venice, Italy) abstract Sensitivity and uncertainty analysis of a 3D diffusion-reaction ecological model of the Lagoon of Venice.
Mar 5 11:15, C010	Charles Paull (Monterey Bay Aquarium Research Institute) abstract Constraints on the Distribution of Gas Hydrates in the Gulf of Mexico
Mar 8 13:00, C008	Géjus Ruiter (Graduation Seminar, UU, NL) abstract A PRACTICAL STUDY IN GEOCHEMICAL MODELLING: The application of Phreeqc in predicting the extracted groundwater composition in behalf of a drinking water extraction
Mar 9 11:15, C110	Anja Reitz (Geochemistry, Utrecht University, NL) abstract Investigation of extreme high manganese concentrations above sapropel S1 in the Southern Ionian Sea, Eastern Mediterranean
Mar 16 11:15, C110	Britta Gribsholt (NIOO-KNAW, Centre for Estuarine and Marine Ecology, Yerseke) abstract Whole ecosystem ¹⁵N labeling study in tidal freshwater marshes.
Mar 23 13:00	Minisymposium (Minnaertgebouw, Room 207) abstract Marine geochemistry, from rare elements in common US coastal groundwater flow to carbonate phases in the profound Mediterranean sphere
Mar 30 11:15, N112	Jim Greenwood (NIOO, NL) abstract Coupled biological physical 1 D model of production, export and remineralisation at station ALOHA (Hawai'i)
Apr 7 11:15, C110	Céline Pallud (Geochemistry, Utrecht University, NL) abstract Sulfate reduction in intertidal estuarine sediments: A kinetic study using a flow-through reactor approach
Apr 14 9:30, C108	P. Berg (Dept. Environmental Sciences, University of Virginia, USA) abstract Eddy Correlation - a method for measuring the O₂ uptake for aquatic sediments.
Apr 14 11:15, C110	H. Fossing & P. Berg (NERI) abstract Dynamic modeling of early diagenesis and nutrient cycling in near shore sediment (Århus Bay, Denmark)
Apr 14 14:00, GCZ	Geochemische Kring abstract / samenvatting Lezingenmiddag Geochemische Kring : Thema: Modelleren in de geochemie (in English!!)
Apr 22 11:15, C010	Anke Dählmann (Geochemistry, Utrecht University, NL) abstract Investigations On The Source Of Fluids At Eastern Mediterranean Mud Volcanoes Using Stable Chlorine Isotopes
May 4 11:15, C110	Mariet Hefting (Landscape Ecology, Utrecht University, NL) abstract Waterquality dynamics in Dutch riparian buffer zones
May 11 11:15, C110	Goulven Laruelle (Geochemistry, Utrecht University, NL) abstract Modeling the biogeochemical cycles and the phytoplankton dynamics in the Bay of Brest: Preliminary results and perspectives.
May 17 14:00, C108	Ralf Haese (Geoscience Australia) abstract Australian / Dutch potpourri
May 18 11:15, C110	Eva M^a Teira González (Royal NIOZ, Texel, NL) abstract Utilization of enantiomeric amino acids by the main prokaryotes in the North Atlantic Deep Water
May 24 11:15, C010	Céline Gallon (INRS-ETE, Université du Québec, CA) abstract Geochemistry of lead and historical variation of its sources in Canadian Shield lakes
May 25 11:15, C110	Martin Thullner (Geochemistry, Utrecht University, NL) abstract Reactive transport modeling of microbially mediated redox processes
Jun 2 09:00, 211	METROL WORKSHOP @ Minnaert-gebouw, zaal 211 (Planetenzaal) 9:00 - 18:00 abstract Methane fluxes in ocean margin sediments
Jun 15 11:15, C110	Geoff Millward (Plymouth, UK) abstract Time and Tide Wait for No Man : Progress Towards Predicting Contaminant Transport in Estuaries?
Jun 17 11:15, C116	Ivan L'Heureux (Ottawa, CA) abstract Examples of nonlinear effects in reaction-diffusion systems: a physicist's musings
June 29 11:15, C108	Uta Passow (AWI-Bremerhaven, D) abstract Tripping stones when budgeting marine biochemical cycling
July 22 13:00, C116	Marga Vos (Utrecht University) abstract High Resolution Pollen Analysis of Lake Sediment Samples in the Kangerlussuaq Area, West Greenland

Date time, room	Speaker (Affiliation) Title / Tentative topic

Sep 23 09:00, KCZ	Minisymposium Advances in early diagenesis program
Sep 23 13:00, N112	Seminar/tutorial Microorganisms in extreme environments (Prof. dr. Fons Stams)
Sep 30 11:15, C116	Michael J. Barcelona (Western Michigan University Kalamazoo, MI, USA) abstract In-situ redox active barrier design for Hydrocarbon Contaminated Ground Water
Oct 2 13:30, KCZ	Minisymposium Redox reactivity program
Oct 7 11:15, C116	Fraukje Steffen (Graduation seminar, Geochemistry, Utrecht University, NL) abstract Sulfur geochemistry of acid mine drainage, A voltammetric approach
Oct 10 14:00, N112	Marian Langevoort (Graduation seminar, Geochemistry, Utrecht University, NL) abstract Transport and degradation of mecoprop in a landfill leachate plume modelled with PHREEQC-2
Oct 14 11:15, C116	Rick Canavan (Geochemistry, Utrecht University, NL) abstract Biogeochemical Cycling in the Sediment of the Haringvliet, a coastal freshwater lake
Oct 20 13:00, N112	Several speakers (Université Paul-Sabatier, Toulouse, France) abstract Multiple seminar
Oct 21 11:15, C116	Yvonne van Lith (Geochemistry, Utrecht University, NL) abstract Competitive interactions between Fe-, Mn-, and sulfate-reducing bacteria and Biotic vs. Abiotic reactions
Oct 30 11:15, KCZ	Konstantinos Kormas (Dept. of Zoology - Marine Biology, Univ. of Athens, Greece) abstract The microbiology of marine gas hydrate sediments; The eastern Mediterranean mud volcanoes.
Nov 4 11:15, C116	Erica Koning (NIOZ, Dept. Marine Chemistry and Geology, Texel, NL) abstract Preservation Mechanisms of Biogenic Silica
Nov 11 11:15, C116	Olivier Ragueneau (Institut Universitaire Européen de la Mer, Plouzane, France) abstract Calibration of Biogenic Silica (BSi) as a Paleo productivity Proxy.
Nov 14 11:15, C116	S.E. O'Reilly (Naval Research Laboratory Stennis Space Center, Mississippi, USA) abstract Effect of microbial iron-reduction on nontronite surface chemistry: A flow-through experimental approach
Nov 18 11:15, C116	Anniet Laverman (Geochemistry, Utrecht University, NL) abstract Nitrogen cycling in intertidal sediments: determination of in situ dentrification rates.
Nov 25 11:15, C116	Gerald Matisoff (Dept. of Geological Sciences, Case Western Reserve University Cleveland, USA ) abstract Mineral-brine reactions during geologic sequestration of CO₂
Dec 2 11:15, C116	Dieter Wolf-Gladrow (Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany) abstract Stable silicon isotopes as a proxy of silicon utilization
Dec 8 15:30, N112	Frans Martens (Graduation seminar, in Dutch!) abstract Onderzoek naar de meerwaarde (en de haalbaarheid) van electro - gestimuleerde fytoremediatie
Dec 11 11:15, N112	Stéphane Feyte (Bordeaux, France) abstract Benthic biogeochemical processes in intertidal permeable sediments.
Dec 12 13:30, N112	Steven J. Boogert (Graduation seminar, in English!) abstract Biodegradation of PER and TRI: Implications for DNAPL Mobilization.

Date time, room	Speaker (Affiliation) Title / Tentative topic

Jan 14 13.30, KCZ	Tim Eglinton (Woods Hole Oceanographic Institution, USA) abstract A new look at old organic carbon in contemporary marine sediments
Jan 23 11.30, C010	Guy Munhoven (Université de Liège, Belgium) abstract The role of continental weathering fluxes in driving atmospheric CO2 on glacial-interglacial timescales: Theory, reconstructions and carbon cycle model experiments.
Jan 30 11.30, C116	Gerard Versteegh (Utrecht University, NIOZ and U. Bremen) abstract Palynomorph selective degradation: its use and its reasons
Feb 6, 11.30, C108	Pieter Kleingeld (Utrecht University, Geochemistry) abstract Analytical Instruments in Geochemistry: A young persons guide to the instruments
Feb 13 11.30, C108	Jacqueline Claessens (Utrecht University, Geochemistry) abstract Surface chemistry of a gram-negative bacterium
Feb 20 13.30, C010	Geert-Jan Brummer (Dept. of Marine Chemistry and Geology, NIOZ, NL) abstract Top-down, sideways and up: particulate fluxes between upper ocean and buried sediment
Feb 27 14.00, C010	Thilo Behrends (Utrecht University, Geochemistry) abstract Competition between abiotic and microbial pathways of redox reactions in suboxic environments
Mar 6 13.30, C010	Nico van Breemen abstract Rock-eating fungi
Mar 12 15.30, C010	Carolien Kroeze (Wageningen University & Research Centre, NL) abstract Global distribution of nitrogen export to coastal systems
Mar 20 14.00, KCZ	Eelco Rohling (School of Ocean and Earth Science, Southampton University) abstract Freshwater forcing during the deposition of eastern Mediterranean sapropel S5
Mar 27 13.30, KCZ	Simon Vriend (Utrecht University, Geochemistry) abstract Botswana
Apr 1 10:30-15:30, KCZ	Minisymposium (Mariette's defense committee) see abstracts, and program Iron and arsenic in anoxic (sulfidic) environments
Apr 3 13:30, KCZ	Peter Engesgård (Geol. Inst., Univ. of Copenhagen) abstract Modelling of Density-dependent Flow and Biogeochemical Processes during a Seawater Intrusion Experiment
Apr 11 11:00, C116	Wouter van Lonkhuyzen (Afstudeerpresentatie, in Dutch!!) samenvatting Een verbeterd geologisch model van het duingebied tussen Katwijk (Zuid-Holland) en Monster
Apr 11 12:00, C116	Jeanine Helmink (Graduation seminar) abstract Mineral oil in a tropical forest - modelling free product layers in the Gamba-Ivinga area
Apr 15 13:30, C110	Sergei Katsev (Department of Physics, University of Ottawa) abstract Modeling the mechanisms and conditions of nutrient cycling: phosphorus release from lake sediments
Apr 28 13:30, C116	Christelle Hyacinthe (Utrecht University, Geochemistry) abstract Identification, formation and reactivity of iron phosphate minerals
May 8 14:30, C008	Jan van der Lee (Centre d'Informatique Géologique, École Nationale Supérieure des Mines de Paris) abstract Coupled modeling of geochemistry in hydrodynamic systems applied to acidic in-situ mining and industrial waste storage.
May 22 13:30, KCZ	Bo Thamdrup (Institute of Biology, University of Southern Denmark) abstract Anaerobic ammonium oxidation in marine sediments and anoxic water columns
Jun 5 13:30, C010	Peter Reichert (EAWAG & ETH, Switzerland) abstract Identifiability Analysis - An Overview of Theory and Application to Water Quality Modelling
Jun 12 13:30, C010	Guus Loch (Utrecht University, Geochemistry) abstract Coupling between Solute Flow and Electrical Osmosis in Clays
Jun 19 13:30, C010	Jerome Bonnin (NIOZ, Marine Chemistry and Geology department, Texel, NL) abstract Sediments resuspension on the slope of the Faeroe-Shetland Channel and its relation to the recycling of silica in the deep water
Jun 26 11:00, N112	Martin Thullner abstract Influence of microbial growth on the hydraulic conductivity of porous media
Jul 25 11:00, N112	Vincent Mastalerz abstract Fluid circulation on ridges and margins: Organic and isotope characterization of processes involving methane degassing
Jul 28 11:00, N112	Christine Gallampois abstract Effect of ammonia on algal growth
Aug 1 11:00, N112	Axel Heimann abstract Characterization of groundwater redox conditions by use of dissolved hydrogen (H₂) concentrations

Date time, room	Speaker (Affiliation) Title / Tentative topic

July 25 11.00, C116	Debby Los (Utrecht University, Geochemistry) abstract The effects of acid irrigation water on the agricultural soils in the Asembagus area, East-Jave, Indonesia
July 26 11.00, W104	Suzan Verdegaal (Utrecht University, Geochemistry) abstract Shells from the mollusc Unio crassus batavus as indicator for trace element pollution and as tool for reconstructing the evolution of the Rhine-Meuse delta
Aug 8 11.00, C116	Marc Alperin (Dept. of Marine Sciences, University North Carolina, USA) abstract Impact of hurricane flooding on sediment deposition, erosion, and benthic processes in a large, lagoonal estuary
Aug 9 10.30, W104	Jeroen Hanssen (Utrecht University, Geochemistry) abstract In situ metal precipitation in the watersaturated zone of a metal contaminated aquifer
Aug 20 16.00, W104	Johan Kool (Utrecht University, Geochemistry) abstract Distribution and origin of bound amino acids in a Podzol and an Andisol
Sep 11 10.00, W104	Hjalmar Visser (Utrecht University, Geochemistry) Invloed van inundatie op de fosfaatbeschikbaarheid in twee bergboezems van de Mark (Noord-Brabant) Roland de Wit (Utrecht University, Geochemistry) LINER "een nieuwe techniek van substraatinvoer in de bodem bij VOCL-verontreinigingen" abstracts (in Dutch)
Sep 12 13.30, C008	Olaf Schuiling (Utrecht University, Geochemistry) abstract Enhanced weathering as a tool for the sequestration of CO2
Sep 13 10.00, W104	Jasper Lacking & Jantien Kruitbosch (Utrecht University, Geochemistry) A baseline survey to determine the enrichment and spatial variation of heavy metals in the IJsselmeer polders of the Netherlands F. Hartendorf & J. Jacobs (Utrecht University,Geochemistry) Occurence and origin of hypersaline groundwaters in Zeeland and Texel abstracts
Sep 16 14.00, W104	Dirk Maas (Utrecht University,Geochemistry) abstract Acidification and reactive transport of cadmium at groundwater pumping station Holten
Sep 19 13.30, C008	Dimo Kashchiev (Institute of Physical Chemistry, Bulgarian Academy of Science) abstract Nucleation of Gas Hydrates
Sep 23 11.00, W104	Claudette Spiteri (University Tübingen, Germany) abstract The application of magnetic susceptibility measurements for detecting anthropogenic heavy metal soil pollution in Lausitz Area, Former Eastern Germany
Sep 25 11.00, W104	Sonia Brugel (University of the Mediterranean Aix-Marseille II, France) abstract Seasonal variations in abundance, composition and primary production of phytoplankton in the bay of Banyuls-sur-Mer (France)
Sep 23 14.00, W104	Esther Driessen (Wageningen University) abstract Monitoring of soil acidification in the Netherlands
Sep 25 11.00, W104	Sonia Brugel (University of the Mediterranean Aix-Marseille II, France) abstract Seasonal variations in abundance, composition and primary production of phytoplankton in the bay of Banyuls-sur-Mer (France)
Sep 25 15.00, C008	Juliette van der Meer (Utrecht University, Geochemistry) abstract Sr-Nd-Pd isotopic constraints on magmatic processes in the Sangihe ARc, North Indonesia
Sep 26 13.30, C008	Philippe Van Cappellen (Utrecht University, Geochemistry) abstract Reactive Transport Modeling of Biogeochemical Systems
Oct 3 13.30, C008	S.M. Hassanizadeh (TU Delft) abstract Dynamic effect in the capillary pressure-saturation in two-phase flow through porous media
Oct 10 13.30, C008	David Rodriguez Aguilera (Utrecht University, Geochemistry) abstract Geochemical Cycles and Genetic Algorithms
Oct 11 13.30, C008	Jean-Francois Gaillard (Northwestern University, USA) abstract To the Edge and Beyond: How to Determine the Chemical Speciation of Metals in Environmental Samples.
Oct 17 13.30, C008	Michiel de Roo and Grishja van der Veer (Utrecht University, Geochemistry) abstract Regional geochemical mapping of the Pallaresa drainage basin; results of the second year fieldwork
Oct 24 15.30, C008	Markus Huettel (MPI Bremen, Germany) abstract Exchange of dissolved and particulate substances across the sediment-water interface in coastal environments
Oct 31 13.30, C008	Kay-Christan Emeis (Institute for Baltic Sea Research) abstract The shelf offshore Namibia: Influences of climate, gas-rich sediments and bacteria on a large marine ecosystem
Nov 5 13.30, C008	Diana Menzel (Utrecht University, Geochemistry) abstract Reconstruction of palaeoenvironmental conditions during deposition of pliocene sapropels: a biomarker approach
Nov 7 11:00, V2TNO	Katja Heeschen (Geomar Research Center for Marine Geology, Kiel, Germany) abstract Processes and fluxes controlling methane from cold vent sites at Hydrate Ridge (Cascadia Margin) Vergaderzaal 2, NITG-TNO-gebouw
Nov 11 11.30, W104	Tom Snieders (Utrecht University, Geochemistry) abstract Geochemisch onderzoek van Maasvlakte sediment
Nov 12 11.00, Kleine Collegezaal.	Maureen H. Conte (Department of Marine Chemistry and Geochemistry Woods Hole Oceanographic Institution, USA) abstract The Oceanic Flux Program time-series: evaluating the linkages between upper ocean physics and biology and export flux to the deep ocean
Nov 14 13.30, C008	Sabine Kasten (University of Bremen, Germany) abstract Geochemical processes and authigenic mineral formations above gas hydrate- bearing sediments of the Congo deep-sea fan
Nov 20 13.30, W104	Marit Linckens (Utrecht University, Geochemistry) abstract Arseen in drie voormalige stortplaatsen in Nederland
Nov 21 13.30, C008	Niels Hartog (Utrecht University, Geochemistry) abstract Sedimentary Organic Matter: a reactive Reductant in Groundwater Systems
Nov 25 13.30, W104	Andreas Hübner (Freie Universität Berlin, Germany) abstract Sedimentation under extreme conditions: geochemistry and mineralogy of Urania basin sediments
Nov 26 13.30, W104	Annemieke Boonman (Leiden) The physical and chemical structure of massiv eyoung stars
Nov 28 13.30, C008	Marc Strous (Nijmegen University, Department of Microbiology) abstract Anaerobic ammonium oxidation, a missed link with global impact
Nov 29 11.00, W104	Mats Oquist (Sweden) abstract Spatio-temporal variability of CO2, N2O and CH4 dynamics in boreal forest soil
Nov 29 15.00, Kleine Collegezaal.	Pim van Bergen (Utrecht University, Geochemistry) All carbon is equal but some is more equal than others -The fight for survival
Dec 5 13.30, C008	Andy Dale (Department of Environmental Sciences, University of Plymouth) abstract Hydrography and biogeochemistry of the Pontevedra Ria upwelling system (NW Spain): approaches and considerations for modelling
Dec 6 11.00, W104	Jeffrey Abell (School of Oceanography, University of Washington) abstract Using preformed nitrate to infer decadal changes in DOM production and remineralization
Dec 12 13.30, C008	Margot Isenbeck-Schröter (University of Heidelberg, Germany) abstract Transport and Redox Behavior of Arsenic: Process studies in the Laboratory and at the Cape Cod Site
Dec 19 15.30, C008	Jacob Zopfi (University of Southern Denmark, Denmark) abstract Biogeochemical cycling in an iron-rich cyanobacterial mat

Date time, room	Speaker (Affiliation) Title / Tentative topic

Mar 7 11.00, C118	Henk van Verseveld (VU Amsterdam) abstract Resilience of the groundwater-ecosystem in reaction to anthropogenic disturbances
Mar 21 11.00, C118	Klaus Wallmann (GEOMAR,Germany) abstract The global phosphorus cycle: Impacts on marine productivity, atmospheric O2 and CO2
Mar 28 11.00, C118	Paul Mason (Utrecht University, Petrology) abstract Laser, plasmas and solving geochemical problems
Apr 04 11.00, C118	Stefan Schouten (NIOZ) abstract Geochemical and environmental importance of marine archaea
Apr 12 (Friday) 14.00, C118	Frans Martens (Utrecht University, Geochemistry) abstract Onderzoek naar de verandering in chemische bulksamenstelling en parameters van het grondwater (in het Nederlands)
Apr 16 (Tuesday) 11.00, W104	Joris Haftka (Utrecht University, Geochemistry) abstract Analysis of brominated flame retardants in environmental samples of biota and sediment
Apr 22 (Monday) 13.30, Kl. Collegezaal	Fred MacKenzie (University of Hawai'i, USA) abstract Response of the oceanic carbonate cycle to rising atmospheric CO2 and global warming
Apr 25 13.30 and 14.30, C118	Martijn van Lochem (Utrecht University, Geochemistry) abstract Mobilization of polycyclic aromatic hydrocarbons and trace metals during settling of water dumped polymer-treated dredged spoil residue Petra van der Lugt (Utrecht University, Geochemistry) abstract Enhancement of L-NAPL dissolution by means of biodegradation
May 02 11.00, C118	Katja Richter (Utrecht University, Geochemistry) abstract Stability of clay membranes in chemical osmotic processes
May 16 11.00, C118	Luuk Koopal (Wageningen Agricultural University) abstract Metal ion binding to humic acids
May 23 11.00, C118	Gert-Jan Reichart (Utrecht University, Geochemistry) abstract Rapid changes in northern Arabian Sea hydrography and atmospheric CO2 variability during the last glacial
May 30 11.00, C118	Syee Weldeab (University Bremen, Germany) abstract Temporal variation of Sr and Nd isotope composition in the Mediterranean Sea terrigenous sediments: Implications for climatic conditions of the catchment areas
Jun 06 11.00, C118	Andre Amblès (University Poitiers, France) abstract Complex organic matter present in soils and sediments: strategy for structure determination
Jun 13 11.00, C118	Andy Lotter (Utrecht University, Palaeobotany and Palynology) abstract Palaeolimnology: a multidisciplinary approach for studying past global change
Jun 25 11.00, W104	Liesbeth van Doorn (Utrecht University, Geochemistry) abstract In situ measurements of metal speciation in Dutch river waters with Diffusive Gradients in Thin-films (DGT).

Date room, time	Speaker (Affiliation) Title

Aug 28 11.00, C116	Denis G. Rancourt (University of Ottawa, Canada) Study of Fe sorbed to bacterial cell walls, biogenic ferrihydrite and abiotic ferrihydrite using ⁵⁷Fe Mossbauer spectroscopy
Sept 4 11.00, C118	Tori Hoehler (NASA Ames Research Center, USA) abstract H₂ biogeochemistry in sediments
Sept 20 11.00, C118	Yvonne van Lith (Utrecht University) abstract Geomicrobiology of dolomite precipitation
Oct 4 11.00, C116	Colin Farmer (Macaulaj Land Use Research Institute, Scotland) abstract Al mobilization in soils
Oct 18 11.00, C116	Ralf R. Haese (Utrecht University) abstract Biogeochemistry of cold seeps
Nov 01 11.00, C116	Mariette Wolthers (Utrecht University) abstract As adsorption to FeS
Nov 08 13.00, C008	Tom Bosma (NITG-TNO) abstract Applied research in soil remediation and management
Nov 15 13.30, C008	Christophe Rabouille (LSCE, France) abstract Carbonate in pelagic sediments: Fluxes and reactions
Nov 27 13.30, C008	Giovanni Aloisi (Kiel University, Germany) abstract Formation of authigenic carbonates in cold seep environments
Nov 29 13.30, C008	Oleg Pokrovsky (UPS-CNRS, France) abstract Chemical weathering: From molecular to global scale
Dec 13 13.30, C008	Imogen Poole (Utrecht University) abstract Organic geochemistry of fossilised wood
Jan 10 13.30, C008	Karline Soetaert (NIOO Yerseke) abstract Modelling pelagic and benthic food webs: the use of inverse modelling and data assimilation techniques
Jan 17 13.30, C008	Stefano Bernasconi (ETH Zürich, Switzerland) abstract Carbon and nitrogen isotope geochemistry of lacustrine organic matter
Jan 24 13.30, C116	Beppo Kaptein (Utrecht University) abstract Improvement of phosphate prospection methods in archaeology
Jan 31 13.30, C008	Anniet Laverman (Utrecht University) abstract Nitrate reduction rates in aquatic sediments
Feb 14 13.30, C008	Eric Viollier (Université Paris 7- Denis Diderot, France) abstract Lake Pavin Geochemistry : what did we learn from 30 years of investigation

Date room, time	Speaker (Affiliation) Title

Jan 11 11.00, Kl. Collegezaal	Rob Raiswell (University of Leeds, UK) abstract The global iron cycle: From riverine fluxes to sediment diagenesis
Jan 25 11.00, Kl. Collegezaal	Céline Pallud (Institut National Polytechnique de Grenoble, F) abstract Multi-scale study of hydrodynamic and microbiological functioning of a soil submitted to solute supply: Application to ammonium and 2,4-D
Feb 01 11.00, Kl. Collegezaal	Christian Hensen (Institute of Earth Sciences, University of Bremen, D) abstract Early diagenesis in sediments of the South Atlantic: Regional aspects, flux rates and model results
Feb 22 11.00, Kl. Collegezaal	Claar Van der Zee (Netherlands Institute for Sea Research (NIOZ), NL) abstract Mn and Fe cycling in sediments of the Iberian margin and Nazare canyon (NE Atlantic).
Mar 01 11.00, C116	Liesbeth de Vrind - de Jong (Gorlaeus Laboratories, Leiden University, NL) abstract Microbial Metal Oxidation
Mar 08 11.00, Kl. Collegezaal	Eric Boschker (Netherlands Institute of Ecology (NIOO), NL) abstract Stable isotope analysis of biomarkers to study microbial processes and populations in coastal systems
Mar 22 11.00, Kl. Collegezaal	Henk Kooi (Free University of Amsterdam, NL)) abstract The land-sea connection in groundwater hydrology
Mar 29 16.00, Kl. Collegezaal	David Rickard (Cardiff University of Wales, UK) abstract Organic Chemistry of Iron Sulfides
Apr 05 11.00, Minnaert 204	Frederic Marin (Leiden University, NL) abstract The origin of animal mineralization
Apr 19 11.00, W104	Georg Irion (Forschungsstation Senckenberg am Meer, D) abstract Sea-level changes and late quaternary geology of the Amazon Basin
May 10 11.00, C110	Stefan Peiffer (University of Bayreuth, D) abstract Matter cycling in an extreme environment - biogeochemical -processes in sediments of acidic mining lakes
Jun 07 16.00, Kl. Collegezaal	Timothy Lyons (University of Missouri, Columbia, MO, USA) A 580 kyr record of dynamic anoxia in the Cariaco Basin, Venezuela, and the geochemical record of the last glacial-interglacial transition
Jun 21 11.00, Kl. Collegezaal	Gerard Muyzer (Netherlands Institute for Sea Research (NIOZ), NL) Past, present and future of microbial ecology

Date room, time	Speaker (Affiliation) Title

Aug 21 13.00, C116	Pierre Regnier (Institute of Water and Environment, Denmark) Hydrogeochemical transport modeling: from process oriented studies to environmental impact assessments
Sep 01 11.00, Minnaert 211	Dennis G. Rancourt (Dept. of Physics, University of Ottawa, Canada) Development of a single-mineral multi-variable geosensor based on the crystal chemistry of biotite
Sep 20	Jeroen Wijsman (NIOO) Sulfur and iron cycling in Black Sea sediments
Sep 21 15.30, Kl. Collegezaal	John Thomson (Southampton Oceanography Centre, United Kingdom) SOC contribution to the UK Benthic Boundary Layer progammme (BENBO)
Sep 28 11.00, C010	Tony Appelo (Hydrochemical Consultant, Amsterdam) In situ iron removal from ground water
Oct 12 11.00, C010	Dirk Bosbach (Institute of Mineralogy, Muenster, Germany) abstract Barite surface reactivity in aqueous environments: Precipitation and inhibition studied at molecular scales
Oct 26 11.00, C110	Erwin Temminghoff (Wageningen University, The Netherlands) abstract Chemical speciation of heavy metals in relation to bioavailability and mobility in soils
Nov 2 11.00, C110	Kees van der Weijden (Utrecht University) abstract Pitfalls of normalization
Nov 9 11.00, C110	Angela Schaefer (Alfred Wegener Institute, Germany) abstract Investigations of benthic-pelagic coupling via mass balances of marine organic carbon fluxes under regional aspects using GIS-techniques
Nov 23 16.00, Kl. Collegezaal	Laurent Charlet (Laboratoire de Géophysique Interne et Tectonophysique, Université Joseph Fourier, Grenoble, France) abstract Mercury cycle in tropical ecosystems: geochemistry and health implications
Nov 27 14.00, C010	Anja Reitz High resolution geochemical and geomagnetic analysis of active and fossil redox boundaries inequatorial Atlantic sediments
Nov 28 11.00, C110	Steven J. Fritz (Dept. of Earth and Atmospheric Sciences, Purdue University, West Lafayette, Indiana, USA) abstract The First Sustainable Liquid Water on the Earth's Surface Chris E. Neuzil (US Geological Survey, Reston, Virginia, USA) abstract Flow in Ultra-low Permeability Shales of the Rocky Mountain Foreland
Dec 07 11.00, C110	Rasmus Jakobsen (Technical University of Denmark) abstract Hydrogen - thermodynamic and kinetic factors affecting the concentration and the relation of this to redox processes and the geochemical environment
Dec 21 11.00, C110	Ingrid Kögel-Knabner (Technical University of Munich, Germany) abstract Organic matter in natural and contaminated soils

Date	Speaker (Affiliation) Title

Jan 13	Mandy Joye (UGA, USA) Acceleration of sediment denitrification by benthic primary production and the impact on coastal ecosystem N budgets
Jan 27	Jack Middelburg (NIOO-CEMO, Yerseke) Stable isotopes as delibrate tracers in field experiments: example from a tidal flat study
Feb 10	Rob Comans (ECN, Petten) Geochemical processes controlling contaminant leaching from waste materials and contaminated soils
Feb 24	Bernhard Wehrli (EAWAG, Switzerland) High resolution measurements in porewaters by ion selective electrodes
Mar 09	Michael Böttcher (Max Planck Institute, Bremen, Germany) Isotope fractionation in the biogeochemical sulfur cycle of marine sediments
Mar 23	Manfred Van Bergen (Utrecht University) Volcanic pollution in Indonesia
Apr 06	Andreas Schramm (University of Bayreuth, Germany) Microbes and microenvironments: Combined microsensor and molecular analyses of biofilms
Apr 19	Wim Van Raaphorst (NIOZ, Texel) Cross-slope deposition in the Faeroe-Shetland Channel
May 04	Gualbert Oude Essing (Utrecht University) Modelling of density dependent groundwater flow: Salt water intrusion and heat transport

JOINT Seminars