Through the 1: 50000 mapping in Piqiang area in the southwest Tianshan Mountains, a large number of diabase groups were found along the nearly north-south fractures, consistent with the distribution of the Piqiang fault. Through zircon U-Pb dating of diabase, indicated that the diabase assemblage was intruded at ~53 Ma, belongs to the Eocene, it shows that there is a prototype of near-north-north fault system in Piqiang area. At the same time, it is considered that the north-south fault on the Keping fault ...
【基金】
中国地质调查局“新疆西南天山皮羌地区矿产地质调查项目”(1212011220608)
【更新日期】
2018-11-30
【分类号】
P597.3;P588.1
【正文快照】
(Geological Survey of Shaanxi Province, Xi'an 710016, Shaan, China)塔里木西北缘柯坪隆起内发育两组方向不同的断裂系统,一组走向呈北东向,具逆冲推覆性质,延伸大于几百千米,一组走向呈近南向,平面上具左行走滑特征,延伸大于80 km,两者在空间上近直交。近年来对近南北向断
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