EVOLUTION OF VOLCANISM IN THE UZON CALDERA, KAMCHATKA

dc.contributor.author	Zolotarev B.P.
dc.contributor.author	Eroshchev-Shak V.A.
dc.contributor.author	Artamonov A.V.
dc.contributor.author	Grigoriev V.S.
dc.contributor.author	Pokrovsky B.G.
dc.contributor.author	Karpov G.A.
dc.date.accessioned	2021-01-11T07:52:43Z
dc.date.available	2021-01-11T07:52:43Z
dc.date.issued	1999
dc.identifier	https://elibrary.ru/item.asp?id=13315689
dc.identifier.citation	Volcanology & Seismology, 1999, , 6, 675-694
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/22649
dc.description.abstract	The Uzon caldera is a genetically complex structure, which was formed during several episodes of tectono-magmatic activity. It is made up of basalts, basaltic andesites, and dacites, the products of the normal evolution of tholeiitic magma, which were reworked considerable by a magmatic-hydrothermal process. New data are presented on the petrography and geochemistry of the basalts and dacites. Variations of δ18O and 87Sr/86Sr are described, and the role of the contamination of these elements in the hydrothermal process is discussed. It was found that the hydrothermal alteration of the silicic rocks had resulted in the cardinal transformation of their chemical composition. Some of their petrogenic elements were removed and involved, along with secondary minerals, into the caldera-lake sedimentation and lithogenesis.
dc.title	EVOLUTION OF VOLCANISM IN THE UZON CALDERA, KAMCHATKA
dc.type	Статья

Files in this item

Files	Size	Format	View
There are no files associated with this item.