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地球学报  2001 

柴达木地块新生代古地磁新数据及其构造意义

Keywords: 古地磁,柴达木,青藏高原,旋转变形

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Abstract:

5个新的古地磁数据结合已发表的成果反映了柴达木地块晚第三纪以来的旋转运动特征。东西部旋转运动的差异性反映了不同地区应力场方向变化特征,即从西到东从北转向北东,与震源机制解有很好的对应性。与塔里木南缘相对照,则更进一步说明了青藏高原北缘旋转变形的差异性。柴达木盆地和酒泉,肃北旋转方向的差异预示了两地区间存在左旋错动。

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