English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Aeolian imprints of multiple Mediterranean invasions of the Black Sea during Pleistocene

Authors

Erginal,  Ahmet Evren
External Organizations;

Kıyak,  Nafiye Güneç
External Organizations;

Makaroğlu,  Özlem
External Organizations;

Bozcu,  Mustafa
External Organizations;

Öztürk,  Muhammed Zeynel
External Organizations;

Selim,  Haluk Hamit
External Organizations;

/persons/resource/nowa

Nowaczyk,  N.
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Kaya,  Nurcan
External Organizations;

Ozturk,  Tugba
External Organizations;

Karabıyıkoğlu,  Mustafa
External Organizations;

Polymeris,  Georgios S.
External Organizations;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in GFZpublic
Supplementary Material (public)
There is no public supplementary material available
Citation

Erginal, A. E., Kıyak, N. G., Makaroğlu, Ö., Bozcu, M., Öztürk, M. Z., Selim, H. H., Nowaczyk, N., Kaya, N., Ozturk, T., Karabıyıkoğlu, M., Polymeris, G. S. (2022): Aeolian imprints of multiple Mediterranean invasions of the Black Sea during Pleistocene. - Palaeogeography Palaeoclimatology Palaeoecology, 592, 110902.
https://doi.org/10.1016/j.palaeo.2022.110902


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015122
Abstract
Climate changes determined the repeated connections between the Black Sea, Caspian Sea and Mediterranean Sea. The landlocked anoxic Black Sea basin was exposed to several transgressions throughout Quaternary by the Mediterranean Sea through the Straits of Istanbul (Bosphorus) and by the Caspian Sea through the Manych-Kerch spillway. Sedimentological records of these connections are limited mostly to the marine terrace deposits of Marine Isotope Stage (MIS) 5e while the pre-MIS 5e period remains uncertain due to a lack of robust facies and chronological data from deep-sea sedimentary sequences. Here we discuss the imprints of multiple Mediterranean transgressions during Middle Pleistocene in the Black Sea based on facies analysis and the optical age of coastal carbonate aeolianites. Contrary to today's hydro-climate of the Black Sea, the aeolianites bear witness to the transformation of the Black Sea into a warm inland sea during successive Mediterranean invasions. Prior to the onset of aeolian deposition, paleosols were formed on the Eocene-aged hardened sandy silts, suggesting strongly washed soil. This is evidenced by no calcium carbonate and a high Rb/Sr ratio, with quartz amounting to of 99.8%. According to our OSL ages, carbonates deposited on the shelf plain under higher temperature and increased evaporation conditions in MIS 15 and the later interglacial phases were transported to the coastal sand dunes during the transitional phases of MIS 15–14, MIS 13–12, MIS 11–10 and MIS 9–8. We suggest that the carbonate-rich and ooid-containing aeolianites were repeatedly formed in the multiple Mediterranean transgression stages, beginning with an increasingly severe dry phase following the Brunhes-Matuyama magnetic reversal.