西北地质2017，Vol.50Issue(3)：187-197,11.
内蒙古阿拉善盟西尼乌苏金钨矿地质特征及成因浅析
Geological Characters and Genesis of Xiniwusu Gold-Tungsten Deposit in Alashan, Inner Mongolia
摘要
Abstract
Xiniwusu gold-tungsten deposit was discovered during the geologic survey in 2015.It's in the middle of Zhusileng-Wulashangde copper-gold-lead-zinc metallogenic subzone.Gold mineralization is hosted in carboniferous baishan group silicated-mylonitized quartz-schist,partly in the quartz veinlets of the schist.Tungsten mineralization is mainly hosted in the quartz veins filled in the brittle faults,and also in the silicated rocks surrounding the quartz.Soil geochemical survey (1 ∶ 10000) shows that anomalies of gold,tungsten,and molybdenum are large and intensive,Au and W have reached the level 3 concentration belt.IP survey shows that there's a anomaly of low resistivity and high chargeability.The geophysical anomaly is anastomotic with the soil anomaly.The sounding shows that there's a anomaly of high chargeability at the depth of-220m,which is inferred to be the position of contact of intrusive rocks.The tungsten mineralization is related with S granite of orogenic period and afterwards,similar with the local tungsten mines of Pantuoshan.The S type granite rock formed in Variscan stage and after,which has obvious characteristics of shalom crust substance remeltling,weak light rare earth concentration,negative Eu Yi anomalies is obvious.For gold-tungsten deposit provides an important source and heat source.Initial source bed for gold element by deep ductile deformation,and the late tectonic superposition and water cirlulation,the activation,migration and enrichment of ore-forming elements constantly.Eventually formed the Xiniwusu gold-tungsten deposit.关键词
西尼乌苏/金、钨矿/糜棱岩化/绢云母绿泥石片岩/S型花岗岩Key words
Xiniwusu/gold, tungsten deposit/mylonitize/sericite-chlorite schist/S granit分类
天文与地球科学引用本文复制引用
李会恺,辛志伟,李敬华,张家兴,刘冬冬,王凯垒,邢东雪,张学萌,李冲..内蒙古阿拉善盟西尼乌苏金钨矿地质特征及成因浅析[J].西北地质,2017,50(3):187-197,11.基金项目
中国地质调查局“内蒙古阿拉善盟西尼乌苏地区矿产调查项目”(12120114011101)本文资助项目“内蒙古阿拉善盟西尼乌苏地区矿产调查项目(12120114011101)”为“阴山成矿带小狐狸山和雅布赖地区地质矿产调查(DD20160039)”子项目 （12120114011101）
本文获得了二级项目负责人腾学建高级工程师的大力支持,在此表示真诚的感谢.” （）
