摘要
桑日则矿床是北喜马拉雅成矿带以大量发育锑硫盐矿物为特色的大型-超大型锑铅锌多金属矿床,桑日则矿区出露地层主要为下侏罗统日当组(J1r),岩性以砂板岩为主,矿区出露的岩浆岩为流纹斑岩、白云母花岗岩和闪长岩。受区域北向的伸展滑脱作用影响,矿区地层整体表现北向滑脱,向北形成了一系列A型褶皱构造,在区域上,矿床的分布严格受控于该构造变形样式,A型褶皱规模尺度又较为悬殊,从而形成了矿体在研究区星罗棋布式的特征,A型褶皱轴向的撕裂带和垂直轴向的薄弱带以及顺层滑脱构造共同控制了矿体的展布,为矿区找矿研究工作提供了重要依据。
The Sangri deposit is a special super-lager or large antimony （sulfur salts） deposit in North Himalaya Metallogenic Belt ,Sangri mine lies in the mid-eastern north edge of jiang zhu la-cuo na don-don ga magmatic metamorphic core complex, its exposure strata is mainly for the J1r. The lithology gives priority to sand slate. The Magmatic rocks of the mine are rhyolitic porphyry, muscovite-granite and diorite. Influenced by the stretching slippage effect of northern areas, the stratum of the mine wholely show north to slip, forming a series of type A folds to the north. Area, the distribution of the ore deposit strictly controlled by the tectonic deformation styles. Type A folds Size scale is relatively wide, To form the characteristics of complex ore body in the study area .Type A folds control the distribution of the orebody,which provide the important basis for the working of prospecting research.
出处
《四川有色金属》
2016年第4期47-49,60,共4页
Sichuan Nonferrous Metals
基金
中国地质调查局项目(12120114050701)
