【摘要】 从区域地质、矿区地质、矿体地质、岩石地球化学等方面对狮尾洞及周边的典型矿床进行稀土分布模式、微量元素蛛网图、矿物岩石及化学成分等综合研究。结果表明,矿化类型主要有两种:含钨石英脉、含钨花岗岩;与成矿有关的岩体为燕山期斑状白云母花岗岩,成因类型为S型花岗岩;蚀变主要有云英岩化、黑云母化、硅化、钾长石化等;控矿构造为大湖塘-同安北北东向大断裂,该断裂控制了区内燕山期岩浆岩带和矿化带的展布;晋宁期花岗闪长岩是主要的成矿围岩,是间接的矿源层。更多还原

【Abstract】 Previous research data on the Shiweidong deposit and its peripheral tungsten deposits were collected comprehensively, including regional geology, mine geology, ore body geology, rock geochemistry, etc.Comprehensive studies on REE distribution pattern, trace elements, mineral and whole-rock geochemical composition of Shiweidong deposit and its surrounding deposits show that: There are two types of mineralization:tungsten-bearing quartz vein type and tungsten-bearing granite type. The granite related to mineralization is the Yanshanian porphyritic white mica granite, which is S-type granite; Alteration types are mainly include miconization, biotite mica, silicification, potassium albitization, etc. Ore-controlling tectonics are the great NNE fault of Dahutang-Tong’an, which controlled the distribution of magmatic belt and mineralization belt in Yanshanian period. Ore-forming surrounding rock is the granite diorite in the Jinning period, which is the indirect source rock.更多还原