TY - JOUR
T1 - A post Younger Dryas Black Sea regression identified from sequence stratigraphy correlated to core analysis and dating
AU - Lericolais, G.
AU - Guichard, F.
AU - Morigi, C.
AU - Minereau, A.
AU - Popescu, I.
AU - Radan, S.
N1 - Funding Information:
Our research was supported by the French ministry of foreign affairs within the frame of a bilateral collaboration between France and Romania, and prolonged by a European project of the 5 th framework program called ASSEMBLAGE (EVK3-CT-2002-00090). Special acknowledgement goes to Nicolae Panin who started and supported the project. We also thank Guillaume Soulet for his help in age calculation, the crew of the vessels “Le Suroît” (Ifremer) and “Marion Dufresne” (IPEV). Special thanks to Yvon Balut.
PY - 2010/10
Y1 - 2010/10
N2 - The north-western Black Sea shelf is the widest continental shelf of the Black Sea, where the Danube delta/prodelta system includes important records on the Black Sea water level fluctuations. This study integrates newly acquired high-resolution single channel seismic reflection profiles and Calypso piston cores recovered along a transect extending from the Danube delta deep into its deep sea fan. The correlated results provide information on the Late Quaternary architecture of the Danube Black Sea shelf and on the role of global glacio-eustatic fluctuations on the building of the Danube delta/prodelta. The sedimentary sequences in the Black Sea are strongly affected by water level changes. For the whole duration of Late Glacial-Holocene period, the level of the Black Sea was controlled by the regional climate modifications rather than the global eustatic changes. The seismic sequences recognized on a very high-resolution seismic profile were dated by two Calypso piston cores. Based on the obtained data, during the Last Glacial Maximum the Black Sea was a land locked lake with the level below -120 m. In the course of the deglaciation the lake level rose up to -40 m, which is confirmed by occurrence of the prodelta lobes formed after the rise in water level originated from the melt water. Following the Younger Dryas, 11 000-8500
14C BP, there occurred a new level lowering to the level of -100 m, identified by the forced regression deposits recorded on the Romanian shelf. This last lowstand previously recognized by a pronounced shoreline with a characteristic beach profile and a belt of coastal dunes is also indicated by the prodelta at -100 m depth. All these coastal features as well as the incised anastomosed channel system remained preserved on the shelf resulting from a rapid ultimate transgression starting immediately after 8500
14C BP.
AB - The north-western Black Sea shelf is the widest continental shelf of the Black Sea, where the Danube delta/prodelta system includes important records on the Black Sea water level fluctuations. This study integrates newly acquired high-resolution single channel seismic reflection profiles and Calypso piston cores recovered along a transect extending from the Danube delta deep into its deep sea fan. The correlated results provide information on the Late Quaternary architecture of the Danube Black Sea shelf and on the role of global glacio-eustatic fluctuations on the building of the Danube delta/prodelta. The sedimentary sequences in the Black Sea are strongly affected by water level changes. For the whole duration of Late Glacial-Holocene period, the level of the Black Sea was controlled by the regional climate modifications rather than the global eustatic changes. The seismic sequences recognized on a very high-resolution seismic profile were dated by two Calypso piston cores. Based on the obtained data, during the Last Glacial Maximum the Black Sea was a land locked lake with the level below -120 m. In the course of the deglaciation the lake level rose up to -40 m, which is confirmed by occurrence of the prodelta lobes formed after the rise in water level originated from the melt water. Following the Younger Dryas, 11 000-8500
14C BP, there occurred a new level lowering to the level of -100 m, identified by the forced regression deposits recorded on the Romanian shelf. This last lowstand previously recognized by a pronounced shoreline with a characteristic beach profile and a belt of coastal dunes is also indicated by the prodelta at -100 m depth. All these coastal features as well as the incised anastomosed channel system remained preserved on the shelf resulting from a rapid ultimate transgression starting immediately after 8500
14C BP.
UR - http://www.scopus.com/inward/record.url?scp=77956611661&partnerID=8YFLogxK
U2 - 10.1016/j.quaint.2010.02.003
DO - 10.1016/j.quaint.2010.02.003
M3 - Article
SN - 1040-6182
VL - 225
SP - 199
EP - 209
JO - Quaternary International
JF - Quaternary International
IS - 2
ER -