The beginning of volcanic activity within Sredinny metamorphic Massif (Sredinny Range, Kamchatka)

For the first time, the age of the beginning of the volcanic activity within Sredinny metamorphic Massif is determined (7–6 Ma). We suppose that this event was caused by the collision of Kamchatka with the Kronotsk arc that started about 7 Ma from accretion of Shipunsky peninsula. We demonstrate tha...

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Bibliographic Details
Published in:Doklady earth sciences 2017-08, Vol.475 (2), p.858-862
Main Authors: Pevzner, M. M., Volynets, A. O., Lebedev, V. A., Babansky, A. D., Kovalenko, D. V., Kostitsin, Yu. A., Tolstykh, M. L., Kushcheva, Yu. V.
Format: Article
Language:English
Subjects:
Accretion
Deposition
Earth and Environmental Science
Earth Sciences
Geology
Metamorphic rocks
Miocene
Rock
Rocks
Volcanic activity
Volcanic rocks
Volcanoes
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Summary:For the first time, the age of the beginning of the volcanic activity within Sredinny metamorphic Massif is determined (7–6 Ma). We suppose that this event was caused by the collision of Kamchatka with the Kronotsk arc that started about 7 Ma from accretion of Shipunsky peninsula. We demonstrate that at least two types of rocks were erupted within Sredinny Range of Kamchatka in late Miocene times: typical islandarc rocks were produced in the central and northern parts of the Range, and hybrid type rocks—in its southernmost part.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X17080189