中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
河南小池沟金矿床硫铅同位素组成及成矿物质来源
- 刘征华|罗正传|李田园|李增辉|包文童
- 作者单位：
- 河南省有色金属矿产探测工程技术研究中心&河南省有色金属地质矿产局第六地质大队|河南省有色金属矿产探测工程技术研究中心&河南省有色金属地质勘查总院|河南省有色金属地质矿产局第六地质大队|河南省有色金属地质矿产局第六地质大队|河南省有色金属地质矿产局第七地质大队
基金项目：
- 河南省国土资源科研项目（豫国土资函〔2017〕237号-02）
详细信息：
- 作者简介：
- 刘征华（1968—），男，河南杞县人，高级工程师，从事有色金属勘查与研究；郑州市郑东新区凤栖街河南地矿科技产业园A座，河南省有色金属矿产探测工程技术研究中心，450016；E-mail:1049746587@qq.com
- 通讯作者：
- E-mail:Luozz1965@126.com,13526502489
- 此文档没有上传！
Sulfur and lead isotope compositions and metallogenic materials source in Xiaochigou Gold Deposit in Henan
- English Author：
- Henan Nonferrous Mineral Exploration Engineering Research Center&No.6 Geological Team of Henan Province Nonferrous Metals Geological Mineral Resources Bureau|Henan Nonferrous Mineral Exploration Engineering Research Center&Henan Nonferrous Metals Geological Exploration Institute|No.6 Geological Team of Henan Province Nonferrous Metals Geological Mineral Resources Bureau|No.6 Geological Team of Henan Province Nonferrous Metals Geological Mineral Resources Bureau|No.7 Geological Team of Henan Province Nonferrous Metals Geological Mineral Resources Bureau
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
小池沟金矿床位于秦岭造山带熊耳山变质核杂岩构造中段。通过对该矿床主成矿阶段形成的蚀变岩型矿石中硫、铅同位素分析，获得矿床硫同位素δ34S值为-3.05 ‰～10.93 ‰，多数位于陨石硫范围内，表明硫主要来源于地幔，并有地壳硫加入，反映了地幔硫遭受地壳物质混入后的硫同位素组成；铅同位素206Pb/204Pb值为17.09～17.53，207Pb/204Pb值为15.31～15.61，208Pb/204Pb值为37.20～38.10，变化范围均不大，属于正常铅范围。铅同位素特征参数及相关图解显示矿石铅具壳幔混合特征。硫、铅同位素组成表明，该矿床的成矿物质以幔源为主，为深部幔源物质混合了壳源物质。
关键词:
小池沟金矿床；硫铅同位素；同位素组成；地球化学特征；成矿物质来源
Abstract:
Xiaochigou Gold Deposit is located in the middle of Xiongershan metamorphic core complex in Qinling orogenic belt.Based on the analysis of sulfur and lead isotopes in altered rock type ores formed in the main metallo-genic stage of the deposit,it is found that the δ34S of sulfur isotope of the deposit is between -3.05 ‰ and 10.93 ‰,mostly remaining within the range of meteorite sulfur,indicating that the sulfur mainly comes from the mantle with the addition of crustal sulfur,which reflects the sulfur isotopic composition of mantle sulfur after being mixed with crustal materials.The lead isotope 206Pb/204Pb value is 17.09-17.53,207Pb/204Pb value is 15.31-15.61,and 208Pb/204Pb value is 37.20-38.10.The variation range is not wide,belonging to normal lead range.Lead isotopic characteristic parameters and related diagrams show that the lead in ores has crust-mantle mixing characteristics.The sulfur and lead isotope compositions show that the ore-forming materials of the deposit are mainly mantle-derived materials,and the deep mantle-derived materials are mixed with crust-derived materials.
Keywords:
Xiaochigou Gold Deposit; sulfur and lead isotope; isotopic composition; isotopic geochemistry; metal-logenic material source
