Light Fraction Mineralogy of Upper Quaternary Sediments from the Saint Anna Trough and Its Paleoceanographic Interpretation |
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| Authors: | M A Levitan N A Kukina |
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| Institution: | (1) Shirshov Institute of Oceanology (IO), Russian Academy of Sciences, Nakhimovskii pr. 36, Moscow, 117851, Russia;(2) Murmansk Marine Biological Institute (MMBI), Russian Academy of Sciences, Vladimirskaya ul. 7, Murmansk, 183010, Russia |
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| Abstract: | Distribution patterns of light minerals, including quartz grains with variable roundness degree, is described in three reference cores from the Saint Anna Trough, Kara Sea. The light fraction mineralogy, coupled with our results on grain size distribution and published data on heavy fraction mineralogy, clay mineralogy, foraminiferal assemblages, oxygen isotopy, organic matter, and radiocarbon dating, allows us to reconstruct the Late Quaternary sedimentary history. Three (glacial, glaciomarine, and marine) development stages are distinguished. |
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