青藏高原东北缘岩浆型铜镍钴硫化物矿床勘查模型与研究进展

刘月高; 张江伟; 冯志兴; 杨顺龙; 王义忠; 李积清; 赵志逸; 王治安; 李树雷; 陈正国; 王厚方

doi:10.12029/gc20230128003

青藏高原东北缘岩浆型铜镍钴硫化物矿床勘查模型与研究进展

1. 中国科学院深海科学与工程研究所, 海南三亚 572000;
2. 自然资源部岩浆作用成矿与找矿重点实验室, 中国地质调查局西安地质调查中心, 陕西西安 710054;
3. 西部矿业集团有限公司, 西宁 810001;
4. 青海省有色第三地质勘查院, 青海西宁 811601;
5. 中陕核工业集团有限公司, 陕西西安 710100;
6. 青海省地质调查院, 青藏高原北部地质过程与矿产资源重点实验室, 青海西宁, 810012;
7. 青海省第五地质矿产勘查院, 青海西宁 810028;
8. 咸阳西北有色七一二总队有限公司, 陕西咸阳 712000;
9. 新疆维吾尔自治区地质矿产勘查开发局第三地质大队, 新疆库尔勒 841000

基金项目:

海南省科技计划三亚崖州湾科技城联合项目(2021CXLH0027)和国家重点研究开发项目(2019YFC0605201)联合资助。

详细信息

作者简介:
刘月高，男，副研究员，从事实验岩石学、岩浆型铜镍钴铂族矿床定位预测、海陆矿产对比与预测工作；E-mail：liuyg@idsse.ac.cn。

通讯作者:
张江伟,男,高级工程师,长期从事大地构造学、矿产地质调查工作

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出版历程
- 网络出版日期: 2024-02-03

Exploration and research progress of magmatic copper-nickel-cobalt sulfide deposits in the north-eastern margin of the Qinghai-Tibetan Plateau

1. Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China;
2. Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits, Ministry of Natural Resources, Xi'an Center of Geological Survey, China Geological Survey, Xi'an 710054, China;
3. Western Mining Group Co., Ltd., Xining 810001, China;
4. The third Nonferrous Geological Exploration Institute of Qinghai Province, Xining 811601, Qinghai, China;
5. Sino Shaanxi Nuclear Industry Group, Xi'an 710100, China;
6. Qinghai Geological Survey Institute, Key Laboratory of Geological Process and Mineral Resources in the Northern Part of Qinghai Tibet Plateau, Xining 810012;
7. The Fifth Geological and Mineral Survey Institute of Qinghai Province;
8. Xianyang 712 General Co., Ltd. of Northwest Nonferrous Geological Prospecting Bureau, Xianyang 712000, China;
9. The Third Geological Branch, Xinjiang Geological and Mineral Bureau, Kuerle, 841000, China

Funds:

Supported by the Projects of Sanya Yazhou Bay Science and Technology City of Hainan Province (2021CXLH0027) and National Key Research and Development Project (2019YFC0605201).

摘要

摘要: 【研究目的】为提升我国Cu-Ni-Co资源供应安全，有必要梳理青藏高原东北缘东昆仑造山带的岩浆型铜镍钴硫化物矿床的的成矿规律与找矿标志。【研究方法】本文系统总结了东昆仑地区除蛇绿岩以外的5期基性-超基性侵入杂岩体：晚奥陶世-早志留世、中晚志留世-早中泥盆世、早石炭世、中二叠世-早三叠世、中-晚三叠世的矿物学、岩石学、年代学、地球化学和地球物理特征。【研究结果】在上述工作基础上，本文归纳了岩浆型铜镍矿的源区性质及其与高压-超高压榴辉岩、原-古特提斯演化的关系，分析了地壳硫混染及结晶分异对硫化物饱和影响，提出了矿体优选赋存的位置，对比了成矿岩体与非成矿岩体的代表性差异。【结论】最终本文建立东昆仑造山带岩浆铜镍钴硫化物矿床的综合信息勘查模型。
- 岩浆型铜镍钴硫化物矿床 /
- 榴辉岩 /
- 超高压变质 /
- 原特提斯 /
- 古特提斯 /
- 关键金属 /
- 矿产勘查工程 /
- 东昆仑造山带
Abstract: [Objective] To improve the supply security of Cu-Ni-Co resources in China, it is necessary to sort out the mineralization regularity and prospecting indicators of the magmatic copper-nickel-cobalt sulfide deposit in the Phanerozoic in the Eastern Kunlun orogenic belt on the northern margin of the Qinghai-Tibet Plateau. [Methods]The geological, geochronology, geochemistry, and geophysical characteristics of five stages mafic-ultramafic complexes including the Late Ordovician-Early Silurian, the Middle Silurian-Middle Devonian, the Early Carboniferous, the Middle Permian-Early Triassic, and the Middle-Late Triassic are summarized. [Results] Based on the above work, the source area properties of magmatic copper-nickel deposits and their relationship with the highpressure-ultrahighpressure eclogite and the evolution of Proto-Paleo Tethys were discussed. The influence of crustal sulfur contamination and crystal differentiation on sulfide saturation was analyzed. The rules of the optimal location of copper-nickel ore bodies were summarized. The typical differences between the ore-forming mafic-ultramafic complexes and the no-ore mafic-ultramafic complexes were described. [Conclusions] At last, a comprehensive information exploration model was established.
- magmatic copper-nickel-cobalt sulfide deposit /
- eclogite /
- ultra-high-pressure metamorphism /
- Proto-Tethys /
- Paleo-Tethys /
- critical metals /
- mineral exploration engineering /
- Eastern Kunlun orogenic belt