People at Fort Hoofddijk

Arjan de Leeuw
J.H.W.M. de Leeuw, MSc
Paleomagnetic Laboratory
Fort Hoofddijk
Utrecht University
Department of Earth Sciences
Utrecht University 
Budapestlaan 17, 3584 CD Utrecht 
The Netherlands 



My PhD thesis

Research of Arjan de Leeuw

Miocene to Pliocene evolution of the western Paratethys (Transylvanian and Pannonian basins) and spatial-temporal connections between Miocene semi-isolated basins

Quarry in Transylvania
This research project aims at establishing a detailed chronologic framework for the Neogene sediments deposited in the western Paratethys area, with special focus on the middle and upper Miocene of the Pannonian and Transylvanian basins. This framework will be constructed using an integrated magnetostratigraphic approach to the thick sedimentary sequences of the Transylvanian and Pannonian basins. 
The resulting time frame will be applied in tectono- stratigraphic studies to unravel the kinematic evolution of the Pannonian- Carpathian orogenic system. Ancient (paleomagnetic) rotations will aid in determining the tectonic history of the area, and will be compared, for instance, with present-day rotations derived from inversion of GPS data.
In addition, the time scale will allow to better define the paleogeographic history. 
Finally, a detailed comparison with time-equivalent sequences of the Eastern Paratethys and Mediterranean realm, will be necessary to study the water exchange between the different Paratethys subbasins and Mediterranean areas. 
This will provide important boundary constraints on the Pan-Mediterranean geodynamic history as well as on the results of ongoing modelling studies of Neogene depositional environments in the Mediterranean basin. 

Quarry in Transylvania, with Wout digging and Giza looking ....

publications Publications of Arjan de Leeuw
  • De Leeuw, A., Filipescu, S., Maţenco, L., Krijgsman, W., Kuiper, K., Stoica, M. (2013). Paleomagnetic and chronostratigraphic constraints on the Middle to Late Miocene evolution of the Transylvanian Basin (Romania): Implications for Central Paratethys stratigraphy and emplacement of the Tisza-Dacia plate, Global and Planetary Change, 103, 82-98.   
  • De Leeuw, A., Mandic, O., Krijgsman, W., Kuiper, K.F., Hrvatović, H. (2012). Paleomagnetic and geochronologic constraints on the geodynamic evolution of the Central Dinarides, Tectonophysics, 530-531, 286-298.  
  • Mandic, O., de Leeuw. A., Bulić J., Kuiper, K.F., Krijgsman, W. and Jurišić-Polšak, Z. (2012). Paleogeographic evolution of the Southern Pannonian Basin: 40Ar/39Ar age constraints on the Miocene continental series of northern Croatia, Int. J. Earth Sci. (Geol. Rundsch),  101, 1033-1046,  
  • De Leeuw, A. (2011). Paleomagnetic and geochronologic constraints on the Miocene evolution of semi-isolated basins in southeastern Europe (PhD Thesis Utrecht University), pp. 204 
  • De Leeuw, A., Mandic, O., de Bruijn, H., Markoviç, Z., Reumer, J., Wessels, W., Šišiç, E. and Krijgsman, W. (2011). Magnetostratigraphy and small mammals of the Late Oligocene Banovici basin in NE Bosnia and Herzegovina, Palaeogeogr., Palaeoclimat., Palaeoecol., 292, 155-167. 
  • De Leeuw, A., Mandic, O., Krijgsman, W., Kuiper, K.F. and Hrvatoviç; H. (2011). A chronostratigraphy for the Dinaride Lake System deposits of the Livno-Tomislavgrad Basin: the rise and fall of a long-lived lacustrine environment, Stratigraphy, 8, 29-43. 
  • Filipescu, S., Wanek, F., Miclea, A., De Leeuw, A. and Vasiliev, I. (2011). Micropaleontological response to the changing environment across the Sarmatian Pannonian boundary in the Transylvanian Basin (Oarba de Mures section, Romania). Geologica Carpathica, 62, 91-102. 
  • Karami, M.P., De Leeuw, A., Krijgsman, W., Meijer, P.Th., and Wortel, M.J.R. (2011). The role of gateways in the evolution of temperature and salinity of semi-enclosed basins: An oceanic box model for the Miocene Mediterranean Sea and Paratethys, Global and Planetary Change, 79, 73–88. 
  • Mandic, O., De Leeuw, A., Vukovic, B., Krijgsman, W., Harzhauser, M. and Kuiper, K.F. (2011). Palaeoenvironmental evolution of Lake Gacko (Southern Bosnia and Herzegovina): Impact of the Middle Miocene Climatic Optimum on the Dinaride Lake System, Palaeogeography, Palaeoclimatology, Palaeoecology, 299, 475-492. 
  • Bukowski, K., De Leeuw, A., Gonera, M., Kuiper, K.F., Krzywiec and P., Peryt, D. (2010). Badenian tuffite levels within  the  Carpathian  orogenic  front  (Gdów  –  Bochnia  area,  S  Poland),  radioisotopic  dating  and stratigraphic position. Geological Quarterly of the Polish Geological Institute, 54, 439-448. 
  • De Leeuw A., Bukowski, K., Krijgsman, W. and Kuiper, K.F. (201). Age of the Badenian salinity crisis; impact of Miocene climate variability on the circum Mediterranean region, Geology, 38, 715-718. 
  • De Leeuw, A., Mandic, O., Vranjkovic, A., Pavelic, D., Harzhauser, M., Krijgsman, W. and Kuiper, K.F. (2010). Chronology and integrated stratigraphy of the Miocene Sinj Basin (Dinaride Lake System, Croatia), Palaeogeogr., Palaeoclimat., Palaeoecol., 292, 155-167. 
  • Mandic, O., De  Leeuw,  A., Hrvatovic, H. (2010). Profil Ostrožac  Jezerski miocen Duvanjskog bazena Section Ostrožac - Lacustrine Miocene of the Duvno basin, Excursion Guide of the 4th Croatian Geological Congress.
  • Vasiliev, I., de Leeuw, A., Filipescu, S., Krijgsman, W., Kuiper, K., Stoica, M. and Briceag, A. (2010). The age of the Sarmatian-Pannonian transition in the Transylvanian Basin (Central Paratethys), Palaeogeogr. Palaeoclimatol. Palaeoecol., 297, 54-69. 
  • Jimenez-Moreno, G., De Leeuw, A., Mandic, O., Harzhauser, M., Pavelic, D., Krijgsman, W. and Vranjkovic, A. (2009). Integrated stratigraphy of the early Miocene lacustrine deposits of Pag Island (SW Croatia): palaeovegetation and environmental changes in the Dinaride Lake System, Palaeogeogr., Palaeoclimat., Palaeoecol., 280, 193-206. 
  • Van Waveren, I. M, F. Hasibuan, Suyoko, Makmur, P.L. de Boer, D. Chaney, K. Ueno, M. Booi, E.P.A. Iskandar, Ch. I. King, J.H.W.M. De Leeuw, J.H.A. van Konijnenburg-van Cittert (2005). Taphonomy, palaeobotany and sedimentology of the Mengkarang Formation (Early Permian, Jambi, Sumatra, Indonesia). In: Spencer G. Lucas, Kate E. Zeigler & Justin A Spielmann (eds.), Permian of Central New Mexico, 176 pages.