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青海省抗得弄舍金多金属矿床成矿流体及成矿物质来源
- 作者：
- 张志尉|米晓明|石延林|吕建民|王飞|严栋
- 作者单位：
- 青海省有色第四地质勘查院|青海省有色第四地质勘查院|青海省有色第四地质勘查院|青海省有色第四地质勘查院|青海省地质调查局|青海省有色第四地质勘查院
基金项目：
- 青海省有色地质矿产勘查局自筹项目（青色地〔2011〕36号）
详细信息：
- 作者简介：
- 张志尉(1985—)，男，青海西宁人，工程师，从事矿产勘查与找矿工作； 西宁市城东区祁连路火车站西巷地B3楼11层，青海省有色第四地质勘查院，810000；E-mail：578882008@qq.com
- 通讯作者：
- isnull
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Ore-forming fluids and ore-forming material source of Kangdenongshe Gold Polymetallic Deposit in Qinghai Province
- English Author：
- The Fourth Geological Survey Institute of Qinghai Province|The Fourth Geological Survey Institute of Qinghai Province|The Fourth Geological Survey Institute of Qinghai Province|The Fourth Geological Survey Institute of Qinghai Province|Qinghai Geological Survey|The Fourth Geological Survey Institute of Qinghai Province
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
抗得弄舍金多金属矿床为东昆仑成矿带东段新发现的矿床。通过对其成矿地质背景、矿床地质特征的研究，初步将该矿床成矿划分3个成矿期，其中热液期又可进一步分为4个成矿阶段，闪锌矿-方铅矿-石英-黄铜矿阶段、重晶石-硫化物阶段为主成矿阶段。流体包裹体分析结果表明，金多金属矿石及铅锌矿石流体包裹体均属于低温度、低密度、中低盐度流体，成矿流体以岩浆水为主，并有大气降水的混入。稳定同位素测试结果表明，成矿物质来源以幔源岩浆热液为主，并混有海相硫酸盐。抗得弄舍金多金属矿床成矿流体及成矿物质来源的确定，可为东昆仑成矿带开展寻找类似矿床提供借鉴。
关键词:
流体包裹体；同位素；成矿物质；成矿地质背景；抗得弄舍金多金属矿床
Abstract:
The Kangdenongshe Gold Polymetallic Deposit is a newly discovered deposit in the east section of east Kunlun metallogenic belt.Based on the study of geological setting and geological characteristics of deposit,it can be pided into 3 mineralization periods,and hydrothermal phase can be further pided into 4 mineralization stages,and sphalerite-galena-quartz-chalcopyrite stage and barite-sulfide stage are main metallogenic stages.The result of fluid inclusion analysis indicates that fluid inclusions of gold polymetallic ore and lead-zinc ore have the characteristics of low temperature,low density and medium low salinity.The ore-forming fluids primarily derive from magmatic water and partly from meteoric water.The result of stable isotopic test shows that ore-forming material sources are mainly mantle-derived magmatic hydrothermal fluids mixed with marine sulfate.The determination of ore-forming fluids and ore-forming material source of Kangdenongshe Gold Polymetallic Deposit can provide reference for exploration of similar deposits in east Kunlun metallogenic belt.
Keywords:
fluid inclusion;isotope;ore-forming material;geological setting;Kangdenongshe Gold Polymetallic Deposit
