THE SPLIT AND REARRANGED OF ORIGINAL XINGXINGXIA GROUP OF EAST TIANSHAN IN XINJIANG
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摘要:
新疆东天山地区星星峡一带的原星星峡群为一套岩性复杂、变质程度差异很大的变质岩系, 在该区进行的1：50000区调工作中, 通过详细的地表调查和地层剖面测量, 并参考了相关变质侵入体的同位素年龄后认为, 根据岩石组合、变质程度、同位素年龄等地质标志, 可将其初步解体为大致形成于晚太古代—古元古代的天湖岩群(Ar3—Pt1T.)和长城纪星星峡岩群(ChX.)两套时代不同的岩群。该岩群的解体和区域对比表明, 中天山星星峡一带和塔里木北缘库鲁克塔格一带的前南华系基底应该是一致的, 属于统一的塔里木北缘隆起带。
Abstract:The original Xingxing Xia group of Xingxing Xia in Xinjiang is a set of metamorphite system of complex lithology and obviously different metamorphic grade.According to Baishidu 1:50000 regional geological survey and rocl assemblage metamorphic degree and the combination of stromatolite, strata sequences of this region are rearranged.They include TianHu rock suite of Archean-Proterozoic ear, Xingxing Xia rock suite of Changchengian system.At the same time, wa did the regional contrast research on rock assemblage, metamorphite and deformation of every rock suite.
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