People at Fort Hoofddijk

Katya Grundan
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Mrs. E.L. Grundan
Paleomagnetic Laboratory
Fort Hoofddijk
Department of Earth Sciences, 
Utrecht University 
Budapestlaan 17, 3584 CD Utrecht 
The Netherlands 

Phone +31 30 253 5481
Fax +31 30 243 1677

Usually at:
Srednyi Pr. 74, 
St. Petersburg, 199106 Russia
Bucharest University

Research of Katya Grundan

Paleoenvironmental and paleogeographic evolution of the Black Sea area during the Neogene: Implications for Mediterranean-Paratethys exchange
The northward plate tectonic motion of the African/Arabian continent during the Neogene (24-0 Myrs ago) has led to the closure of the Tethys Ocean. The Alpine- Himalayan orogenic barrier separated this ocean into the Mediterranean domain and the so-called “Paratethys” domain; a large endemic water mass that extended from Austria to Iran, with the Black Sea and Caspian Sea as actual remnants.  Both domains have experienced dramatic paleoenvironmental (and tectonics)  changes during the Neogene, examplified by the desiccation and reflooding of the Mediterranean during the Messinian Salinity Crisis (6-5.3 Myrs ago) and the desiccation and reflooding of the Black Sea during an event that might be related to the biblical flood of Noah (~8 kyrs ago). 

Fieldwork in Taman peninsula (Russia)

The semi-enclosed land-locked configuration of the Mediterranean region has appeared to be extremely sensitive to record changes in paleoclimate and paleoenvironment and integrated stratigraphic studies have revealed that the sedimentary record accurately reflects astronomically induced changes in solar insolation. This has allowed the construction of very detailed astronomically tuned geological polarity time scales, which at present underlie most modern paleoclimatic, paleoceanographic and paleogeobiologic research efforts. 
In contrast, the time scale for the Paratethys domain is highly equivocal and controversial ages exist for many events and geological stage boundaries.
The small marine opening through the Bosporus did not exist during large parts of the Neogene. The key question that hampers a full understanding of the paleoclimatological evolution of Eurasia during that time period thus relates to the closure and opening of the marine connection(s) between Mediterranean and Paratethys, and is at present far from understood.
Katya in Utrecht (Holland)

publications Publications of Katya Grundan