Late Quaternary deep-sea sedimentation in the western Black Sea: New insights from recent coring and seismic data in the deep basin

Type Article
Date 2013-04
Language English
Author(s) Lericolais GillesORCID, Bourget Julien, Popescu Irina, Jermannaud Paul, Mulder T., Jorry StephanORCID, Panin N.
Affiliation(s) IFREMER, Ctr BREST, F-29200 Plouzane, France.
Univ Western Australia, Sch Earth & Environm, Ctr Petr Geosci, Crawley, WA 6009, Australia.
GeoEcoMar, RO-024053 Bucharest, Romania.
BEICIP FRANLAB, F-92502 Rueil Malmaison, France.
Univ Bordeaux 1, OASU, EPOC, UMR 5805, F-33405 Talence, France.
Source Global And Planetary Change (0921-8181) (Elsevier Science Bv), 2013-04 , Vol. 103 , P. 232-247
DOI 10.1016/j.gloplacha.2012.05.002
WOS© Times Cited 39
Note From Source to Sink - Quantifying the mass transfer from mountain ranges to sedimentary basins
Keyword(s) Black Sea, deep sea fan, Danube turbidite system, Turkish margin, thick mud turbidites, sediment gravity flow, sedimentation forcing, active margin, source-to-sink
Abstract The Danube River Basin–Black Sea area represents a unique natural laboratory for studying the interplay between lithosphere and surface as well as source to sink relationships and their impact on global change. This paper addresses some information on the “active sink” of the system; i.e. the Danube deep sea fan and the Black Sea basin. The present study focuses on the distal sedimentary processes and the evolution of sedimentation since the Last Glacial Maximum. This is investigated through recently acquired long piston coring and shallow seismic data recovered at the boundary of influence of the distal part of the Danube turbidite system (to the north-west) and the Turkish margin (to the south). This dataset provides a good record of the recent changes in the sedimentary supply and climato-eustasy in the Black Sea region during the last 25 ka. This study demonstrates that the deep basin deposits bear the record of the Late Quaternary paleoenvironmental changes and that the western Black Sea constitutes an asymmetric subsident basin bordered by a northern passive margin with confined, mid-size, mud-rich turbidite systems mainly controlled by sea-level, and a southern turbidite ramp margin, tectonically active.

Highlights

► Oceanographic results from survey carried out in the western Black Sea are presented. ► The Danube fan distal part: the Black Sea main depositional feature is described. ► This study is on the morphology and gravity sedimentation in the Black Sea deep basin. ► Data were collected at the boundary between the Danube fan and the Turkish margin. ► The dataset provide a good record of sedimentary supply and climato-eustatic changes.
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