摘要
肃北县四道梁北二段井位于北山造山带南带,岩体长为10 km,宽约1 km,出露面积约为10 km 2。岩体主要为英云闪长岩,岩体内发育大量北西向石英脉和中基性岩脉,通过对区内8条岩石地球化学剖面特征进行分析,发现Mo、Au、Cu、Bi、As等高温成矿带元素分异强烈;富集系数较高的Au、Ag、Pb、Mo、As、Hg、Bi等元素,同样具有较高的矿化叠加强度;Mo、Au、Pb、Hg等元素表现出较高的相关性,对区内找矿工作具有重要指导意义。
Erduanjing of Sidaoliang North Well in Subei County is located in the southern belt of Beishan orogenic belt.The rock mass is 10 km long and 1 km wide,and its exposed area is about 10 km 2.The rock mass is mainly quartz diorite with a large number of NW-trending quartz veins and medium-basic dikes.By analyzing the geochemical characteristics of eight rocks in the area,it is found that elements in high-temperature metallogenic belts such as Mo,Au,Cu,Bi and As are strongly differentiated;elements such as Au,Ag,Pb,Mo,As,Hg and Bi with higher enrichment coefficient also have higher mineralization superimposition intensity.These elements show high correlation,which has important guiding significance for prospecting work in this area.
作者
高正海
GAO Zheng-hai(Baiyin Nonferrous Geological Exploration Institute Gansu Provincial Nonferrous Geological Survey Bureau,Baiyin 730900,China)
出处
《甘肃冶金》
2020年第1期78-82,89,共6页
Gansu Metallurgy
关键词
二段井
岩石地球化学
剖面特征
找矿意义
erduanjing
rock geochemistry
profile characteristics
prospecting significance
