Late Pleistocene-Holocene evolution of the northern shelf of the Sea of Marmara


Cagatay M. N., Eriş K. K., Ryan W. B. F., Sancar Ü. S., POLONIA A., AKCER S., ...Daha Fazla

MARINE GEOLOGY, cilt.265, ss.87-100, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 265
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.margeo.2009.06.011
  • Dergi Adı: MARINE GEOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.87-100
  • Anahtar Kelimeler: Sea of Marmara, shelf, sea level, sapropel, seismic stratigraphy, isotopes, BLACK-SEA, LEVEL CHANGES, DEPOSITIONAL-ENVIRONMENTS, POSTGLACIAL TRANSGRESSION, RADIOCARBON CHRONOLOGY, BENTHIC FORAMINIFERA, MEDITERRANEAN SEA, ANATOLIAN FAULT, BOSPORUS STRAIT, SOUTH
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Chirp sub-bottom profiling, multibeam bathymetric mapping and a combination of faunal and isotopic analysis of molluscs and foraminifera in sediment cores on the northern shelf of the Sea of Marmara (SoM) provide evidence of sea-level excursions, water exchanges between the adjacent Mediterranean and Black Seas, and oscillating salinity over the last 160 ka bp. During the marine isotope stages MIS-2, MIS-3, MIS-4 and MIS-6 the SoM disconnected from the Mediterranean Sea and evolved into a lake. During MIS-1, MIS-5 and MIS-7, the SoM reconnected and became salty once again. Sapropels formed shortly after each invasion of Mediterranean saltwater observed in our cores. Concurrent suboxic-dysoxic conditions prevailed over quite shallow substrates on the shelf.