| Popis: |
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. |
