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The age of metamorphism of sillimanite-bearing schists at the Kyakhtinskoe deposit (southwestern Transbaikalia)

机译:Kyakhtinskoe矿床(西南拜拜卡利亚)含硅线石片岩的变质时代。

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摘要

Results of U-Pb (SHRIMP II) and Rb-Sr dating of sillimanite schists in southwestern Transbaikalia are presented, which testify to high-temperature metamorphism in the Late Mesozoic. The metamorphism might have been related to the formation of metamorphic cores or tectonoplutonic activity accompanied by the formation of rift structures in Transbaikalia and Mongolia.
机译:给出了西南贝贝卡利亚地区硅线石片岩的U-Pb(SHRIMP II)和Rb-Sr测年结果,证明了中生代晚期的高温变质作用。变质可能与变质岩芯的形成或构造成岩活动有关,同时在跨贝卡卡利亚和蒙古也形成了裂谷结构。

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