西藏冈底斯地块北部甲岗雪山钨钼铜金多金属矿产地的发现及意义  

Discovery of the Jaggang Snow Mountain tungsten-molybdenum-copper-gold polymetallic occurrence in the northern part of the Gangdise block, Tibet

作　　者：葛良胜[1] 邹依林[1] 邢俊兵[1] 武玉海[1] 张学军[1] 李振华[1] 马建文[2] 张兴模[3] 

机构地区：[1]武警黄金地质研究所 [2]武警黄金第十支队,云南昆明651000 [3]武警黄金第十二支队,四川成都610059

出　　处：《地质通报》2004年第9期1033-1039,共7页Geological Bulletin of China

基　　金：国土资源调查项目(资[2003]003-01)资助。

摘　　要：长期以来,冈底斯地块地质找矿工作主要集中在地块南部,并以铜金等为主。研究表明,其北部也具地质找矿前景。在冈底斯地块北部的申扎县首次发现了具有大型资源潜力的钨钼矿产地。共发现规模大、品位高、易采易选的钨钼矿脉10余条。经初步评价,圈定矿体20个,求得W+Mo3341资源量2.3×104t。认为该矿床的形成可能与喜马拉雅早期碰撞型中酸性岩浆活动有关,属典型的岩浆气液-充填型黑钨矿-石英大脉型矿床。The Gangdise block is one of the important tectonic units on the Qinghai-Tibet Plateau. For a long time, mineral prospecting has been mainly carried out in the southern part of the block and focused on copper and gold. Study indicates that the northern part of the block also has ore prospects. The authors for the first time found a tungsten-molybdenum occurrence with a large ore potential in Xainza County in the northern part of the block. A total of over ten large tungsten-molybdenum ore veins have been found there. The ore is high-grade and easy to mine and dress. Through preliminary evaluation, 20 orebodies have been delineated and resources of W+Mo3341 of 23000 tons obtained. The formation of the deposit might be related to collision-type intermediate-acid magmatism in the early Himalayan Stage. It belongs to a typical magmatic pneumatolyto-hydrothermal-filling wolframite-quartz large vein type deposit.

关 键 词：钨钼矿床 矿产地 意义 冈底斯地块 西藏 

分 类 号：P618.2[天文地球—矿床学]