Comparative Analysis of Geochemical Peculiarities of the Indian, Atlantic and Pacific Pleistocene Sediments

We have compared a mean arithmetic chemical composition of different Pleistocene sediment types for Indian, Atlantic and Pacific oceans based on reports of DSDP, ODP, IODP phases of the International deep-sea drilling project and other references. Besides of it, the comparative analysis of mean chemical composition of Pleistocene straton for all three main oceanic basins also took place. Comparison of mean-weighted chemical composition revealed the leading role of dry sediment matter masses. The evaluation of mass accumulation rates for oxides of petrogenic elements in Pleistocene sediments of all oceans also has been done. We have considered data about the modern factors influenced the oceanic sedimentation, for example, ratio of watershed areas to areas of accumulation basins, composition of source provinces, continent’s climate, areas of sea floor above and under the critical depth surface, primary production of the ocean. These data have been compared with our results concerning values of oxides of petrogenic elements in Pleistocene sediments of all oceans. We have revealed that dominate influence for the mean chemical composition of the ocean sediments belongs to the level of critical depth surface and degree of geochemical differentiation.