Bottom Rock Material of Polar Seas: Distribution, Composition, and Genesis

Autor:	D. V. Eroshenko, G. S. Kharin
Rok vydání:	2020
Předmět:	geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences 010505 oceanography Geochemistry Glacier Oceanography 01 natural sciences Iceberg The arctic Petrography Polar seas Glacial period Geology 0105 earth and related environmental sciences Ice rafting Gneiss
Zdroj:	Oceanology. 60:840-853
ISSN:	1531-8508 0001-4370
Popis:	We have summarized the results of studies of bottom rock material in Quaternary sediments in the polar seas of the Arctic, North Atlantic, and Antarctica, obtained by sieve washing on expeditions of the Shirshov Institute of Oceanology, Russian Academy of Sciences. We have compiled maps of the quantitative distribution of this material over water areas and created pie charts of the petrographic composition for various sites. A wide variety of petrographic types of rocks has been revealed, caused by their transport by glaciers, icebergs, and ice from glaciation centers on continents and islands. We have identified petrographic provinces based on the composition of the rock material and determined its sources. At the same time, great importance has been given to searching for marker rocks, making it possible to correlate the rock material of the seas with their land sources.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::89632b9f9fe443b9f0593d336d533b08 https://doi.org/10.1134/s0001437020050082 Zobrazit plný text záznamu Full text from SpringerLink