Composition of sedimentary rocks from the Shapkina River valley, Bolshezemelskaya Tundra ...

• Main Author: Andreicheva, L N
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2007
• Subjects: Archive of Ocean Data ARCOD; Pechora; Tundra
• Online Access: https://dx.doi.org/10.1594/pangaea.784066; https://doi.pangaea.de/10.1594/PANGAEA.784066

A facies-genetic and stratigraphic subdivision of the Quaternary sequence in the Shapkina River valley has been accomplished. The riverbank shows outcrops of three glacial complexes with different mineralogical-petrographic compositions and structural characteristics, which can be correlated and stratificated. Datings of intermoraine horizons (alluvial, marine, lacustrine, and lacustrine-boggy sediments) have been based on palynological and paleomicrotheriological data. The Middle Neopleistocene section can be divided into two till horizons corresponding to two autonomous glaciations (Pechora and Vychegda). They are separated by a member of subaqueous Rodionov sediments. The Pechora till formed in the course of glacier motions from the northeast. Glacial horizons are mainly composed of the Vychegda till transported from the Northwest terrigenous provenance. Lithology of the Upper Neopleistocene Polyarnyi till testifies to its formation in the upper course of the river from material transported from the ... : Supplement to: Andreicheva, L N (2007): Pleistocene sediments in the Shapkina River valley (Bol'shaya Zemlya Tundra). Translated from Litologiya i Poleznye Iskopaemye, 2007, 1, 93-110, Lithology and Mineral Resources, 42(1), 84-100 ...