TY - JOUR
T1 - The region of the Strandja Sill (North Turkey) and the Messinian events
AU - Suc, Jean Pierre
AU - Gillet, Hervé
AU - Çağatay, M. Namik
AU - Popescu, Speranta Maria
AU - Lericolais, Gilles
AU - Armijo, Rolando
AU - Melinte-Dobrinescu, Mihaela Carmen
AU - Şen, Şevket
AU - Clauzon, Georges
AU - Sakinç, Mehmet
AU - Zabci, Cengiz
AU - Ucarkus, Gülsen
AU - Meyer, Bertrand
AU - Çakir, Ziyadin
AU - Karakaş, Çağil
AU - Jouannic, Gwenaël
AU - Macaleţ, Rodica
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - The two sides of the Strandja Sill show a highly discontinuous stratigraphic succession since the Late Oligocene. This area, together with the Sea of Marmara Basin, is usually proposed as the gateway for the Paratethyan freshwaters and organisms that constituted the Lago Mare facies in the Mediterranean Sea during the Messinian Salinity Crisis (MSC). Our investigations involving new field observations and datings, together with previous studies, suggest that the sill has possibly experienced such a connection at around 8. Ma, i.e. significantly before the crisis. The proposal of a sea-level drop of the Black Sea before 7. Ma is not supported by our data on dinoflagellate cysts. Consistency of calcareous nannofossil succession at DSDP Site 380 is reinforced, allowing to reassert that subaerial erosion impacted both the southwestern Black Sea and the central Marmara - Dardanelles area during the peak of the MSC. At that time, this region was crossed by two oppositely directed fluvial networks, further supporting the absence of a marine gateway through the Strandja Sill. It is concluded that none of the Lago Mare events recorded in the Mediterranean during the MSC were the consequence of the passage of Paratethyan waters and organisms through this area. In the Black Sea, the well-dated Messinian fluvial erosion can be followed offshore. The overlying prograding deltaic deposits attest to a fast marine reflooding after the crisis. This constitutes a comprehensive erosion - sedimentation model in an area intensively explored for hydrocarbons.
AB - The two sides of the Strandja Sill show a highly discontinuous stratigraphic succession since the Late Oligocene. This area, together with the Sea of Marmara Basin, is usually proposed as the gateway for the Paratethyan freshwaters and organisms that constituted the Lago Mare facies in the Mediterranean Sea during the Messinian Salinity Crisis (MSC). Our investigations involving new field observations and datings, together with previous studies, suggest that the sill has possibly experienced such a connection at around 8. Ma, i.e. significantly before the crisis. The proposal of a sea-level drop of the Black Sea before 7. Ma is not supported by our data on dinoflagellate cysts. Consistency of calcareous nannofossil succession at DSDP Site 380 is reinforced, allowing to reassert that subaerial erosion impacted both the southwestern Black Sea and the central Marmara - Dardanelles area during the peak of the MSC. At that time, this region was crossed by two oppositely directed fluvial networks, further supporting the absence of a marine gateway through the Strandja Sill. It is concluded that none of the Lago Mare events recorded in the Mediterranean during the MSC were the consequence of the passage of Paratethyan waters and organisms through this area. In the Black Sea, the well-dated Messinian fluvial erosion can be followed offshore. The overlying prograding deltaic deposits attest to a fast marine reflooding after the crisis. This constitutes a comprehensive erosion - sedimentation model in an area intensively explored for hydrocarbons.
KW - Erosion
KW - Fluvial network
KW - Mediterranean-Paratethys connection
KW - Messinian Salinity Crisis
KW - Onshore-offshore stratigraphy
UR - http://www.scopus.com/inward/record.url?scp=84942367003&partnerID=8YFLogxK
U2 - 10.1016/j.marpetgeo.2015.01.013
DO - 10.1016/j.marpetgeo.2015.01.013
M3 - Article
AN - SCOPUS:84942367003
SN - 0264-8172
VL - 66
SP - 149
EP - 164
JO - Marine and Petroleum Geology
JF - Marine and Petroleum Geology
ER -