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Morphological and Stratigraphic Investigation of a Holocene Subaqueous Shelf Fan, North of the Istanbul Strait in the Black Sea ArchiMer
Okay, Seda; Jupinet, Benoit; Lericolais, Gilles; Cifci, Gunay; Morigi, Catherina.
In 2002, the Bosphorus outlet was mapped using an EM 300 multibeam echo-sounder together with a Chirp sonar system. This survey, carried out on board the Ifremer RV 'Le Suroit' in the frame of the BlaSON project, completes the data previously acquired directly at the mouth of the Bosphorus by Di Iorio et al. (1999) in the frame of a NATO SACLANT Undersea Research project using jointly the NATO RV Alliance, and the Turkish Navy Survey ship 'Cubuklu'. This acoustic imaging has identified a canyon system at the slope and a shallow marine fan, which contains shelf incisions extending the Istanbul Strait incision. Multibeam bathymetry, ultra-high resolution seismic profiling and coring correlations on this subaqueous fan area allowed reconstruction of...
Tipo: Text Palavras-chave: Multibeam; High resolution seismic; Sea level change; High energy Mediterranean water input; Subaqueous fan.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00036/14676/13677.pdf
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Overview of the Bosphorus Depositional Fan from Data Sets Recovered on the Black Sea Shelf off the Strait of Istanbul ArchiMer
Lericolais, Gilles; Algan, Oya; Morigi, Caterina; Okay, Seda; Kirci-elmas, Elmas; Cifci, Gunay.
Since the preliminary mapping of the northern Bosphorus outlet of the Black Sea continental shelf by the 90’s NATO project, an important data set bringing morphological, seismic and sedimentological information is now available to describe there a shallow fan system consisting of a main channel and short distributary branches, levees, and sediment waves, correlative to a southern source flowing to the north. This paper brings complementary quantitative data from landscape at the eastern and western shelf area of the shallow fan system. It confirms that the Bosphorus outlet fan preserved on the shelf surface provides an important record of surface water flow. To deduce the history of the Marmara/Black Sea last connexion, it is fundamental to understand how...
Tipo: Text Palavras-chave: Bosphorus; Black Sea; Seismic; Sediment cores; Multibeam bathymetry; Shallow fan.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00501/61254/64838.pdf
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