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The Arcuate Nappe Structure on the Northern Margin of the Wuliang Moutnains in Western Yunnan

The Arcuate Nappe Structure on the Northern Margin of the Wuliang Moutnains in Western Yunnan
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摘要 The arcuate nappe structure on the north edge of the Wuliang Mountains in westernYunnan Province is a complex nappe structural system with multiple superimposed structures.The autochthonous system is a WNW-trending arcuate fold belt consisting of the Jurassic andCretaceous and the allochthonous system is mainly composed of Upper Triassic rocks. Generally,the nappe structure moved from south to north, with the hanging wall thrusting in a WNW direc-tion for a distance of over 10km. The deep nappe structural system was formed at depths ofabout 5-10km in an environment not exceeding the greenschist facies. It occurred in theOligocene (about 40-20 Ma). The arcuate nappe structure on the north edge of the Wuliang Mountains in westernYunnan Province is a complex nappe structural system with multiple superimposed structures.The autochthonous system is a WNW-trending arcuate fold belt consisting of the Jurassic andCretaceous and the allochthonous system is mainly composed of Upper Triassic rocks. Generally,the nappe structure moved from south to north, with the hanging wall thrusting in a WNW direc-tion for a distance of over 10km. The deep nappe structural system was formed at depths ofabout 5-10km in an environment not exceeding the greenschist facies. It occurred in theOligocene (about 40-20 Ma).
出处 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 1996年第2期123-133,共11页 地质学报(英文版)
关键词 arcuate nappe structure overthrust KLIPPE multiple superimposed structure LOADING Wuliang Mountains in western Yunnan arcuate nappe structure overthrust klippe multiple superimposed structure loading Wuliang Mountains in western Yunnan
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