| 张雪亭.青海索拉沟铜多金属矿含矿围岩主要特征[J].地质与勘探,2014,50(4):659-665 |
| 青海索拉沟铜多金属矿含矿围岩主要特征 |
| The characteristics of mineralization wall rocks of the Suolagou copper polymetallic deposit, Qinghai Province |
| 投稿时间：2014-03-03 修订日期：2014-06-25 |
| DOI： |
| 中文关键词: 特征 含矿地层 索拉沟 青海 |
| 英文关键词: characteristics, ore bearing stratum, Suolagou, Qinghai Province |
| 基金项目:青海省地质勘查基金项目（项目编号：QGTZXG2011-18）资助 |
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| 中文摘要: |
| 索拉沟大型铜多金属矿位于鄂拉山叠覆造山带。在大量野外工作的基础上，通过详细的岩石地球化学、同位素地球化学、岩相学和原岩恢复综合研究表明索拉沟铜多金属矿含矿围岩为杂色非晶质致密块状均质、具条带状构造的不纯硅质岩，其中夹有火山岩及火山碎屑岩。根据岩石化学特征，其中火山岩属中性火山岩类。从火山岩原岩恢复图解看，在TiO2-SiO2图解中6个点全部落入火成岩区，而（al＋fm）－(c＋alk)-Si图中6个点有3个落入火山岩区，3个落入钙质沉积岩区，火山岩属于安山质岩类。综合研究认为，索拉沟含矿地层的宜归属为鄂拉山组，矿床类型属与弧火山作用有关的沉积-热液复合型矿床。 |
| 英文摘要: |
| The Suolagou large-size copper polymetallic deposit located in the Elashan ore belt in Qinghai Province. Based on the field survey, detailed rock geochemistry, isotope geochemistry, petrography feature and protolith recovery analysis shows that the ore bearing wall rocks of Suolagou large-size copper polymetallic deposit is compact massive impured silicalite with banded structure. There are the interbed of volcanic rocks and volcaniclastic rock in ore bearing stratum. According to the petrochemical characteristics, the volcanic rocks in the impured silicalite is intermediate volcanic rocks.The six samples of impured silicalite belongs to volcanic rocks in TiO2-SiO2 diagram, but three of the six samples of impured silicalite belongs to volcanic rocks and the others of the six samples of impured silicalite belongs to calcareous sedimentary rocks in （al＋fm）－(c＋alk)-Si diagram. Based on the above analysis, the volcanic rocks in the impured silicalite is andesitic rocks. The ore bearing stratum belongs to the Elashan formation. The Suolagou copper polymetallic deposit is of sedimentary –hydrothermal superimposition type deposit. |
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