Abstract

In our research we summarized data obtained on the composition, structure, and geochemical characteristics of the granitoid plutons of the eastern part of the Krasnoleninsky arch of the East Siberian Plate and the age of rocks surrounding them. The Kamenny, Palyanovsky, North Kamenny and Vodorazdelny granite, granodiorite, and granosyenite plutons were emplaced in the interval of 297–261 Ma (Early–Late Permian) as melting products of the lower–middle crust at the postorogenic stage. The formation of granitoid massifs in the basement of the Em-Egovsky summit took place in the Late Devonian (Frasnian, Famennian). They differ greatly from the rocks of the Kamenny pluton in composition, degree of secondary alterations, and tectonization.

中文翻译：

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西西伯利亚克拉斯诺列宁斯基拱门花岗岩类地块：组成、结构、时代和形成条件

摘要

在我们的研究中，我们总结了关于东西伯利亚板块克拉斯诺列宁斯基拱门东部花岗岩类岩体的组成、结构和地球化学特征以及周围岩石年龄的数据。Kamenny、Palyanovsky、North Kamenny 和 Vodorazdelny 花岗岩、花岗闪长岩和花岗长岩岩体在 297-261 Ma（早-晚二叠世）区间作为造山后阶段下中地壳的熔融产物被侵位。Em-Egovsky 顶峰基底中花岗岩类地块的形成发生在晚泥盆世（弗拉斯阶、法门阶）。它们在成分、次生蚀变程度和构造作用方面与 Kamenny 岩体的岩石有很大不同。