Search

An overview of the last works concerning the Recent environment and bottom sediments in the White Sea is presented. Special attention is devoted to the existing schemes of the modern facies structure. Up-to-date factual material allowed the authors to offer a new version of the facies structure. According to this version, the White Sea can be divided into two areas (scale 1 : 5 000 000): Northeastern and Southwestern. The Northeastern facies area includes two facies zones: Western and Eastern. The Southwestern facies area includes three facies zones: Central, Transitional, and Peripheral. In turn, the Peripheral facies zone is divided into the following facies subzones: (1) shallow-water Kandalaksha Bay; (2) Onega Bay, and (3) Severnaya Dvina prodelta and the Letnii Coast. Typical peculiarities of the Recent depositional environment and accumulated marine sediments are presented for all facies areas, zones and subzones. [ABSTRACT FROM AUTHOR]

Abstract—Lithological–facies zonality of Neo– and Eopleistocene sediments from the Fiji Sea is described for the first time. Processing of corresponding maps and isopachite schemes using A.B. Ronov's volumetric method gave us an opportunity to calculate the quantitative parameters of sedimentation for distinguished types of Pleistocene sediments. Carbonate sediments dominate over other groups of sediments. Carbonate planktonic sediments have been more intensively accumulated in the Neopleistocene than in the Eopleistocene. The highest volcanotectonic activity is typical of Eopleistocene. [ABSTRACT FROM AUTHOR]

Abstract—Lithological and facies zonality of Neopleistocene and Eopleistocene sediments of the Australian seas is described for the first time. Processing of these maps and isopach schemes by A.B. Ronov volumetric method gave us an opportunity to calculate the quantitative parameters of sedimentation for different types of the Pleistocene sediments. It was revealed that carbonate sediments predominate over other sediment groups. The Neopleistocene was characterized by more intense accumulation of carbonate planktic sediments and lithogenic sediments than Eopleistocene. [ABSTRACT FROM AUTHOR]