| 冯亮亮,张云国,杜祥扩,陈腾.青海索拉吉尔铜矿矿体围岩元素地球化学特征分析[J].矿产勘查,2025,16(5):1078-1087 |
| 青海索拉吉尔铜矿矿体围岩元素地球化学特征分析 |
| Analysis on the element geochemical characteristics of the surrounding rock of the ore body in the Sorajir copper deposit, Qinghai Province |
| 投稿时间：2022-09-15 |
| DOI：10.20008/j.kckc.202505012 |
| 中文关键词: 铜矿 矿体及围岩 地球化学特征 分析中图分类号:P595文献标志码:A文章编号:1674-7801(2025)05-1078-10 |
| 英文关键词: copper deposit ore body and surrounding rock geochemical characteristics analysis |
| 基金项目:本文受易扬集团年度地质勘查项目(2019001)资助。 |
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| 中文摘要: |
| 索拉吉尔铜矿床位于东昆仑成矿带西段祁漫塔格成矿带内，属于成矿带内具有代表性的矽卡岩型矿床。本文通过对钻孔岩心中的岩浆岩、矽卡岩、矿体进行代表性取样组合，对围岩和矿石进行主量元素、微量元素、稀土元素分析，以前人经典元素判别模式为基础，归纳总结岩石的主微量元素及稀土元素特征，分析元素的各项物质性质。综合分析认为在成矿过程中似斑状二长花岗岩起主导作用，其属于具有酸性-高钾钙碱性的 I型花岗岩，花岗闪长岩起次要作用，其属于中酸性-准铝质-高钾钙碱性的 S型花岗岩，两者的成岩物质来源于中深源上地幔，属于壳幔混合型花岗岩。本文为索拉吉尔铜矿的找矿勘查工作提供了地球化学依据，在今后的找矿工作中应着重关注似斑状二长花岗岩与碳酸盐岩接触区域。 |
| 英文摘要: |
| The Sorajir copper deposit is located in the Qimantag metallogenic belt in the western section of theEast Kunlun metallogenic belt and belongs to a representative skarn deposit in the metallogenic belt. Through repre.sentative sampling combination of magmatic rock, skarn and ore body in the drill core, the paper analyzes the mainelements, trace elements and rare earth elements of surrounding rock and ore. Based on the classical element dis.crimination model, the paper summarizes the characteristics of main and trace elements of rock and rare earth ele. ments, and analyzes the material properties of elements. Comprehensive analysis shows that porphyry like monzo.granite plays a leading role in the mineralization process, which belongs to the acid high potassium calc alkaline I-type granite, and granodiorite plays a secondary role, which belongs to the intermediate acid quasi aluminous highpotassium calc alkaline S-type granite. The diagenetic materials of the two are derived from the middle deep uppermantle and belong to the crust mantle mixed granite. This article provides geochemical evidence for the prospectingand exploration work of the Solagir copper mine. In future prospecting efforts, special attention should be paid to thecontact zone between porphyritic monzonitic granite and carbonate rocks. |
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