Causes of Cretaceous Remagnetization on the Southwestern Periphery of the Archipelago of the New Siberian Islands

—We report new paleomagnetic and geochronological data for rocks of the Franz Josef Land archipelago and generalize available information about the paleomagnetism of the Barents Sea continental margin as applied to the issues of the Mesozoic Arctic tectonics. Specifically, the obtained age estimates are indicative of a brief episode of mantle plume magmatism at the Barremian–Aptian boundary (Early Cretaceous). The paleomagnetic data shows that intraplate magmatism formations in the High Arctic, including the Franz Josef Land traps, are nothing else than a trace of the Iceland plume on the migrating tectonic plates of the region. Thus, the Iceland plume was geographically stationary for at least the last 125 Myr. Our paleotectonic reconstructions suggest a direct connection of the intraplate strike-slip systems of the Eurasian continent with the configuration and subsequent evolution mode of Mesozoic marginal basins and spreading axes during the initial opening stage of the Arctic Ocean.

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Causes of Cretaceous Remagnetization on the Southwestern Periphery of the Archipelago of the New Siberian Islands

Cited by 3 publications

References 12 publications

Early paleozoic tectonics and paleogeography of the Eastern Arctic and Siberia: Review of paleomagnetic and geologic data for the De Long Islands

Early paleozoic tectonics and paleogeography of the Eastern Arctic and Siberia: Review of paleomagnetic and geologic data for the De Long Islands

Paleozoic Tectonics and Geodynamics of the De Long Islands and Adjacent Structures of the Verkhoyansk-Chukotka Fold Belt

Paleomagnetism of the Franz Josef Land Archipelago: Application to the Mesozoic Tectonics of the Barents Sea Continental Margin

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