Composition of fragmental minerals of the surface layer of bottom sediments in the Caspian Sea |
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| Authors: | N V Kozina A N Novigatsky |
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| Institution: | 1. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
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| Abstract: | The mineral composition of heavy and light subfractions of the modern bottom sediments of the Caspian Sea is studied. The concentration of the minerals in the Caspian Sea made it possible to identify nine terrigeneous mineralogical provinces in its area. Based on the mineral composition of the heavy subfraction of the bottom sediments, the main sources of the fragmentary material supply are established. The distribution of the terrigeneous minerals over the bottom area in the modern bottom sediments of the Caspian Sea depends on the sources of the fragmentary material; the stability and flotation properties of minerals; the morphology of the bottom; and the hydrodynamic conditions. |
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