BASALTIC MAGMATISM AND STRIKE-SLIP TECTONICS IN THE ARCTIC MARGIN OF EURASIA: EVIDENCE FOR THE EARLY STAGE OF GEODYNAMIC EVOLUTION OF THE AMERASIA BASIN
E.V. Shipilov
Polar Geophysical Institute, Kola Science Center, Russian Academy of Sciences, ul. Khalturina 15, Murmansk, 183010, Russia
Keywords: Geological and geophysical data, plume, geodynamics, strike-slip (wrench) faulting, Arctic, continental margin of Eurasia, Canada Basin
Abstract
Interpretation of geological and geophysical data from several regions in the Arctic continental margin of Eurasia which differ in structure and tectonic settings shed new light on the early history of the Arctic Ocean (Canada Basin) opening. Many issues of regional tectonics and geodynamics become clear due to evidence of Late Mesozoic magmatism within the continental margins of the Barents and East Siberian Seas and strike-slip tectonics in the Chukchi shelf. Interpretation analysis is applied to reconstruct the formation of structures in the Amerasia Basin during the Arctic Ocean initiation.
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