Geochemistry data from the Toupugol volcanogenic complex, supplement to: Silaev, Valeriy I; Sokerin, Mikhail Yu (2001): Indications of an Ensimatic Island Arc of the Silurian-Early Devonian Paleo-Ocean in the Polar Urals. Polarforschung, 69, 137-141

Valeriy I Silaev & Mikhail Yu Sokerin
A large fragment of a paleovolcano of Silurian to Early Devonian age was discovered in the Voikar volcanic belt suggesting an ensimatic island are as its geodynamic environment. Formationally, the rocks under study are comparable to Pleistocene island arc volcanites and their paleo-analogues. The volcanites of the Toupugol complex underwent strong hydrothermal-metasomatic alteration: propylites, acid metasomatic rocks and quartz-carbonate veins, which must have resulted from hydrothermal-metasomatic alteration of andesitoids. Both volcanites and apovolcanic hydrothermal rocks...
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