Spatial–temporal trends of Late Mesozoic plume magmatism in the Arctic during formation of the Amerasian Basin
- Authors: Shipilov E.V.1, Lobkovskiy L.I.2, Yurik R.Y.1
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Affiliations:
- Polar Geophysical Institute, Kola Science Center
- Shirshov Institute of Oceanology
- Issue: Vol 472, No 2 (2017)
- Pages: 138-142
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/189251
- DOI: https://doi.org/10.1134/S1028334X17020040
- ID: 189251
Cite item
Abstract
The spatial and temporal characteristics of magmatism caused by the Barents–Amerasian Jurassic–Cretaceous plume in conjunction with the geodynamics of destructive transformations of the lithosphere are presented here. The localities of manifestation of magmatism were concentrated mainly out of general contour of the areal occupied by the Siberian superplume, and they demonstrated certain gravitation to the Caledonide–Ellesmeride belts. This suggests an inherited position of both the J–K plume and the initial detachment zone produced by it: this led to formation of the Canadian Basin. The stages in the evolution and character of polycyclic multiphase plume magmatism are substantiated by the geochronology of magmatic provinces in the Arctic region during formation of the Amerasian Basin.
About the authors
E. V. Shipilov
Polar Geophysical Institute, Kola Science Center
Author for correspondence.
Email: shipilov@pgi.ru
Russian Federation, Murmansk, 184209
L. I. Lobkovskiy
Shirshov Institute of Oceanology
Email: shipilov@pgi.ru
Russian Federation, Moscow, 117218
R. Yu. Yurik
Polar Geophysical Institute, Kola Science Center
Email: shipilov@pgi.ru
Russian Federation, Murmansk, 184209