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青藏高原西北缘—西构造结(大拐弯)东侧的碰撞造山是当前国际地学界关注热点之一,本文根据我国“九五”期间在西昆仑—塔里木南缘关键地带实施的地震测深等地球物理探测,结合地质、地球化学研究指出:西昆仑与塔里木南缘相互间均不存在长距离俯冲的证据,它们的碰撞接触具有“双向水平挤压(Opposite directional-horizon-tal compression)”特征,由于挤压,岩石圈下部压密,从而发生“拆沉作
In the northwestern margin of the Qinghai-Tibet Plateau, the collision orogeny on the east side of the western tectonic knot (Great Bend) is one of the current hot topics in the international geoscience community. According to the seismological sounding survey carried out in key areas along the western Kunlun-Talingimu during the Ninth Five-Year Plan period Geophysical exploration, in combination with geological and geochemical studies, points out that there is no evidence of long-distance subduction between the western Kunlun and the southern Tarim, and their collision contact has the characteristics of “Opposite directional-horizon-tal compression” , Due to extrusion, lithosphere lower compaction, resulting in "demolition Shenzuo