Vendian-Early Cambrian island-arc plagiogranitoid magmatism in the Altai-Sayan folded area and in the Lake Zone of western Mongolia (geochronological, geochemical, and isotope data)
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- 作者：S.N. Rudnev ; V.P. Kovach ; V.A. Ponomarchuk
- 关键词：Vendian&ndash ; Early Cambrian island-arc plagiogranitoid magmatism ; Geochronology ; Geochemistry and isotope geochemistry ; Central Asian Fold Belt ; Altai&ndash ; Sayan folded area ; Lake Zone of western Mongolia
- 刊名：Russian Geology and Geophysics
- 出版年：2013
- 出版时间：October, 2013
- 年：2013
- 卷：54
- 期：10
- 页码：1272-1287
- 全文大小：1903 K
文摘
We generalize results of geological, geochronological, geochemical, and isotope-geochemical studies of the Vendian-Early Cambrian island-arc plagiogranitoid magmatism in the Altai-Sayan folded area and in the Lake Zone of western Mongolia. Based on these data, we analyzed the scales of development of plagiogranitoid magmatism, studied the petrologic composition and isotope characteristics of granitoids, and established the main sources of plagiogranitoid-generating melts and the leading mechanisms of formation of Early Caledonian juvenile crust.