The "sink" of the Danube River basin; the distal Danube deep-sea fan

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doi: 10.5724/gcs.12.32.0701
Author(s): Lericolais, Gilles; Bourget, Julien; Jorry, Stephan; Popescu, Irina; Abreu, Vitor; Jouannic, Gwenael; Bayon, Germain
Author Affiliation(s): Primary:
Institut Français de Recherche pour l'Exploitation de la Mer, Issy les Moulineaux, France
University of Western Australia, Australia
GeoEcoMar, Romania
ExxonMobil Upstream Research, United States
Institut des Sciences de la Terre de Paris, France
Volume Title: Papers presented at the 32nd annual GCSSEPM Foundation Bob F. Perkins research conference; New understanding of the petroleum systems of continental margins of the world
Volume Author(s): Rosen, Norman C., editor; Weimer, Paul; Coutes dos Anjos, Sylvia Maria; Henrickson, Sverre; Marques, Edmundo; Mayall, Mike; Fillon, Richard; D'Agostino, Tony; Saller, Art; Campion, Kurt; Huang, Tim; Sarg, Rick; Schroeder, Fred
Source: Papers presented at the Gulf Coast Section, Society of Economic Paleontologists and Mineralogists Foundation Annual Bob F. Perkins Research Conference, Vol.32, p.701-735; 32nd annual GCSSEPM Foundation Bob F. Perkins research conference, Houston, TX, Dec. 2-5, 2012, edited by Norman C. Rosen, Paul Weimer, Sylvia Maria Coutes dos Anjos, Sverre Henrickson, Edmundo Marques, Mike Mayall, Richard Fillon, Tony D'Agostino, Art Saller, Kurt Campion, Tim Huang, Rick Sarg and Fred Schroeder. Publisher: Society of Economic Paleontologists, Gulf Coast Section (GCSSEPM) Foundation, Houston, TX, United States. ISSN: 1544-2462. ISBN: 978-0-9836097-8-0
Note: In English. 95 refs.; illus., incl. sects., geol. sketch maps
Summary: The Danube River Basin and the Black Sea represent a unique natural laboratory for studying source to sink and global change. We will address information on the "active sink" of the system, which represents the area of active deposition: sea level variation, sediment balance, and neotectonics. Also, we will discuss the evolution and quantification of climate, tectonics, and eustasy on the sedimentation in the western Black Sea basin, along both southern and northern margins, obtained from understanding the Danube deep-sea fan processes and sedimentation. In the last decade, many of the geosciences studies carried out in the Black Sea have focused on the Holocene marine transgression. This topic has been fully discussed and is still a matter of debate. Since the DSDP drillings, the lithology and mineralogy of deep sediments from the Black Sea have been well studied. However, only few recent studies have focused on the deep-sea morphology and turbidite sedimentation in the western Black Sea basin, in which the main depositional feature is the Danube submarine fan. Oceanographic surveys in the Black Sea in 1998, 2002, and 2004 carried out in the framework of French-Romanian joint project and the European ASSEM-BLAGE (EVK3-CT-2002-00090) project have collected a large amount of data (Multibeam echo sounder data, CHIRP seismic, as well as Kullenberg and Calypso cores). This paper presents insights from recent coring and seismic data recovered at the boundary of influence of both the distal part of the Danube turbiditic system and the Turkish margin. This data set provides a good record of changes in the sedimentary supply and climatic changes in the surrounding Black Sea since the last 25 ka. Based on this study, we demonstrate that the deep basin deposits bear the record of the late Quaternary paleoenvironmental changes. Finally, the western Black Sea basin constitutes an asymmetric subsident basin bordered by a northern passive margin containing confined mid-size, mud-rich turbiditic systems, and a tectonically active southern turbiditic ramp margin.
Year of Publication: 2012
Key Words: 06 Petrology, Sedimentary; Asia; Black Sea; Cenozoic; Clastic sediments; Danube River; Deep-water environment; Drainage basins; East Mediterranean; Echo sounding; Europe; Geophysical methods; Geophysical profiles; Geophysical surveys; Isotopes; Last glacial maximum; Mass movements; Mediterranean Sea; Metals; Middle East; Mud; Neodymium; North Anatolian Fault; Quaternary; Rare earths; Romania; Sea-level changes; Sedimentation; Sediments; Seismic methods; Seismic profiles; Southern Europe; Submarine fans; Surveys; Turbidite; Turkey
Coordinates: N410000 N470000 E0420000 E0280000
Record ID: 2017003542
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