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A. S. Egorov, O. E. Smirnov, I. Yu. Vinokurov, A. P. Kalenich Similarity and difference in structure of the Ural and Paikhoy-Novaya-Zemlia fold belts. Journal of Mining Institute. Vol 200. p. 34.

Similarity and difference in structure of the Ural and Paikhoy-Novaya-Zemlia fold belts

Authors:
A. S. Egorov O. E. Smirnov I. Yu. Vinokurov A. P. Kalenich
Date submitted:
2016-11-09
Date published:

Abstract

Characteristic features of deep structure and composition of Ural (UFB) and Paikhoy-Novaya-Zemlia (PNZFB) fold belts, which were investigated with the use of results of geological and geophysical investigations along reference geophysical profiles (geotransects) are considered. In the structure of Uralian deep sections typical elements of collisional orogen are distinguished: deformed margin of submerged plate, suture zone and deformed margin of override plate. Participation in the process of the Late Paleozoic collision more than «Baltic» и «Kazakhstan» plates, but micro plates of continental type lead to complication of typical model of collision orogen due to inclusion into the UFB deep structure additional blocks and suture zones. PNZFB zonality is not typical for classical collision orogens. Fold-thrust belt on the «Svalbard» plate margin is modeled in its deep section. Intensity of the fold-thrust deformations decreases to relict oceanic basin, which is modeled in the basement of the South-Kara sedimentary depression.

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