摘要
吉拉铅矿是西藏地区非常重要的铅矿矿床,位于青藏高原东部,泛华夏大陆南缘,昌都—芒康—思茅陆块的芒康中生代坳陷,芒康-盐井复式向斜近轴部,东邻金沙江裂谷带,西靠澜沧江断裂带。属于西藏自治区芒康县管辖范围内。该区褶皱与断裂构造发育有明显的岩浆活动。出露地层包括白垩系下统景星组、白垩系上统南新组和第四系。该区成矿作用具长期性、多期性特点,是由岩浆热液活动与多期构造改造相互叠加形成,主要以喜山期岩浆热液成矿为主,宽创成因属于中低温热液型脉状矿床。文章对吉拉铅矿矿床地质特征进行分析,总结该矿矿床成因,希望为该区地质找矿工作提供参考。
Gilardino ore is very important ore deposits in Tibet area, located in the eastern Tibetan Plateau, the pan Cathaysian continental margin of the Changdu-Mangkam-Simao block of the Mangkam Mesozoic depression, Mangkam salt compound syncline shaft, the East Jinsha River rift zone, west of the Lancang River fault zone. Belonging to the jurisdiction of Tibet autonomous region of Mangkam county. There are obvious magmatic activities in the fold and fracture structures in this area. The exposed strata including the lower Cretaceous Jingxing Nanxin group group, lower Cretaceous and quaternary. The mineralization characteristics of long-term, multi period is from magmatic hydrothermal activity and tectonic transformation superimposition of formation, mainly in the Himalayan magmatic hydrothermal mineralization mainly belongs to a wide formation in epithermal ore deposits. The geological characteristics of ore deposits Gilardino analysis, summed up the causes of the ore deposit, hoping to provide reference for the work of the geological prospecting.
出处
《世界有色金属》
2017年第14期169-169,172,共2页
World Nonferrous Metals
关键词
吉拉铅矿
西藏
地质特征
矿床成因
Tibet
Gilardino lead
geo-logical features
ore genesis
