青海鄂拉山兴海香加吾岗地区银铅找矿前景分析

青海鄂拉山兴海香加吾岗地区银铅找矿前景分析
雍化常;杨怀超;龙宇;葸德华;赖川
【期刊名称】《西北地质》
【年(卷),期】2017(50)4
【摘要】调查区位于青海省兴海县香加吾岗地区,属鄂拉山成矿带.笔者及其团队在该地区进行1∶5万地质填图过程中,新发现Ag、Pb、Zn矿点及矿化点5处,赋存地层为上三叠统鄂拉山组(T3e)底部及下中三叠统洪水川组三段(T1-2h3),成矿类型为陆相火山岩型,控矿构造主要为北东向断裂;通过1∶5万遥感异常提取及解译工作,圈出编号为YC-15、YC-16一级羟基异常2处;通过1∶5万高精度磁法测量,圈出编号为DC-2013-010的乙2类磁异常1处;通过1:5万水系沉积物测量圈出编号为HS乙138 Ag (AuAsSnPbZn)、HS甲235 Pb (ZnCdAgAuMoCu)银铅异常2处.通过上述找矿工作,结合室内对比分析综合研究,显示青海鄂拉山兴海香加吾岗地区具有较好的银铅成矿地质条件及找矿前景.%The survey area is located in Xiangjiawugang area of Xinghai County,Qinghai Province,which is belonged to Ngola Mountain metallogenic belt.Through carrying out the 1 ∶ 50000 geological mapping,five Ag,Pb and Zn deposits or mineralization have been found newly in this area,which mainly occurin the upper Triassic Elashan Formation (T3e) and middle or lower Triassic Hongshuichuan Formation (T1-2 h3),with the mineralization type of continental volcanic type and the ore-controlling structure of NE
faults.Two hydroxyl anomalies have been found newly through extracting and interpreting the 1 ∶ 50000 remote sensing anomaly in this survey
area,whose number is YC-15 and YC-16.One B2 magnetic anomaly has been discovered in this survey area through 1 ∶ 50000 high-precision measurement,whose number is DC-2013-010.Two Ag or Pbgeochemical anomalies have been discovered in this survey area through 1 ∶ 50000 stream sediment survey,whose numbers is HS乙138Ag (AuAsSnPbZn) and HS甲235Pb (ZnCdAgAuMoCu).Through the prospecting work,combined with comparative study,it's found that the good Ag-Pb ore-forming geological conditions and prospecting potential exist in Xiangjiawugang area of Ngola Mountain,Xinghai County,Qinghai Province.
【总页数】16页(P140-155)
【作者】雍化常;杨怀超;龙宇;葸德华;赖川
【作者单位】四川省核工业地质局二八一大队,四川西昌 615000;四川省核工业地质局二八一大队,四川西昌 615000;四川省核工业地质局二八一大队,四川西昌615000;四川省核工业地质局二八一大队,四川西昌 615000;四川省核工业地质局二八一大队,四川西昌 615000
【正文语种】中文
【中图分类】P624.6
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