Terranes of the Eastern Arctic shelf of Russia

The shelf basement of the Laptev, East Siberian, and Chukchi seas is composed of different-aged systems of the Arctic foldbelt: Caledonides, Ellesmerides, and Early and Late Kimmerides. The basement of the northern Chukchi Sea is presumably made up of an ancient continental block, the periphery of t...

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Bibliographic Details
Published in:Doklady earth sciences 2007-03, Vol.413 (1), p.183-186
Main Author: Kos'ko, M K
Format: Article
Language:English
Subjects:
Geology
Marine
Oceanic analysis
Oceanography
Plate tectonics
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Summary:The shelf basement of the Laptev, East Siberian, and Chukchi seas is composed of different-aged systems of the Arctic foldbelt: Caledonides, Ellesmerides, and Early and Late Kimmerides. The basement of the northern Chukchi Sea is presumably made up of an ancient continental block, the periphery of the Hyperborean platform. Its relicts are preserved in the Amerasian Basin of the Arctic Ocean (the Lomonosov, Mendeleev, and Northwind ridges) [4]. The basement was strongly transformed by superimposed destructive processes, which complicated the delineation of tectonic regions (terranes) and compelled researchers to draw wide boundary zones between the terranes.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X07020092