Mesozoic-Cenozoic volcanism and geodynamic events in the Central and Eastern Arctic

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• 作者：N.L. Dobretsov ; V.A. Vernikovsky ; Yu.V. Karyakin ; E.A. Korago ; V.A. Simonov
• 关键词：geodynamics ; volcanism ; plume ; rifting ; subduction ; Siberian traps ; Arctic
• 刊名：Russian Geology and Geophysics
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：54
• 期：8
• 页码：874-887
• 全文大小：4670 K

文摘

The patterns and history of Mesozoic-Cenozoic plume magmatism in the Arctic is considered in relation with suprasubduction volcanism and geodynamic events. The Mesozoic-Cenozoic magmatic history of the area includes seven stages, distinguished by correlation of ages and compositions of volcanics associated with mid-ocean rifting, plumes, and subduction; three of seven stages correspond to global events at 230-200 Ma, 130-120 Ma, and 40-30 Ma. The reported study supports the inferred inverse correlation between plate velocities and amount of subduction-related volcanism. The gained knowledge is used for paleotectonic reconstructions in the Arctic.