摘要
扎西康整装勘查区出露地层为亚堆扎拉岩群和曲德贡岩群、三叠系、侏罗系、白垩系,岩浆岩为花岗岩、辉绿岩、辉长岩、玄武岩、安山岩、流纹岩等。区域变形格架由北部也拉香波核杂岩带、南部拿日雍错核杂岩带及核间对冲带组成。拿日雍错变质核杂岩带,受藏南伸展拆离事件影响,应力以北向的伸展滑脱为主。在北翼滑脱构造带内,撕裂节理带、滑脱褶皱构造及鞘褶皱为成矿提供了导矿和赋矿空间,为找矿工作提供了重要依据。
The Zhaxikang integrated exploration area expose Zara rock group and Qu Degong rock group,Triassic, Jurassic,Cretaceous. Its magmatite mainly are granite, gabbro, diabase, basalt, andesite, rhyolite. The northern area deformation grid is mainly composed of yardoi nuclear complex belt, southern Nariyong Co nuclear complex belt and the hedge belt between these two nuclear complex belts. Nariyong Co metamorphic core complex zone, affected by Zangnan detachment events, mainly stress in extensional decollement to north. In the north wing of the slip structure belt, the tearing joint belt, the slip fold structure and the sheath fold provide the lead ore and ore hosting space, which provides an important basis for the ore prospecting work.
出处
《四川有色金属》
2017年第1期51-54,58,共5页
Sichuan Nonferrous Metals
关键词
西藏
扎西康
变形格架
鞘褶皱
Tibet
Zhaxikang
The deformation of framework
sheath fol
