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Palaeoenvironmental Investigation Of Sapropelic Sediments From The Marmara Sea: A Biostratigraphic Approach To Palaeoceanographic History During The Last Glacial-Holocene, Elmas Kirci Elmas, Oya Algan, İzver Özkar Öngen, Ulrich Struck, Alexander V. Altenbach, Eni̇s K. Sagular, Ati̇ke Nazi̇k

Turkish Journal of Earth Sciences

High-resolution micropalaeontological examination of two cores recovered from the Central Basin of the Marmara Sea distinguishes seven biostratigraphical zones within pre-sapropelic (Pr1 & 2 zones), sapropelic (Sap1 & 2 zones) and post-sapropelic (Po1-2-3 zones) sediments. The pre-sapropelic sediments at the basal section of the cores reflect the lake stage of the Marmara Sea when it was isolated both from the Black and Mediterranean seas. First colonization of foraminifers at about 11-10.4 ky BP indicate the beginning of marine conditions following the entry of Mediterranean waters through the Çanakkale Strait. Sapropelic sediments deposited at about 10.3-6.2 ky BP were associated with …