罗金海,周鼎武,柳益群,曹宣铎,胡云绪

• 1:西北大学地质学系
• 2:西北大学地质学系
• 3:西北大学地质学系
• 4:西安地质矿产研究所

摘要(Abstract)：

根据新发现的晚泥盆世标准化石,把塔里木盆地西南缘原归属于元古界、志留系—中泥盆统、上寒武统—中奥陶统的一套浅变质岩的原岩时代重新确定为晚泥盆世。浅变质岩的物质组成、空间分布和区域地质特征表明,其原岩在沉积之后不久就受到低温动力变质作用改造,动力变质作用与北昆仑造山带在志留纪—泥盆纪期间的碰撞造山作用相关。上泥盆统浅变质岩的确定为北昆仑碰撞造山作用提供了新的时代约束。

关键词(KeyWords)： 浅变质岩;碰撞造山作用;晚泥盆世;北昆仑造山带;塔里木盆地;新疆

Abstract:

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基金项目(Foundation):

作者(Author): 罗金海,周鼎武,柳益群,曹宣铎,胡云绪

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