引用本文:董涛, 杜斌, 段召艳, 曹晓民, 宋旭峰, 董红国, 张有名, 李冰.滇西北香格里拉地区钨矿成矿规律及找矿方向[J].沉积与特提斯地质,2022,42(1):62-74.[点击复制]
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滇西北香格里拉地区钨矿成矿规律及找矿方向
董涛,杜斌,段召艳,曹晓民,宋旭峰,董红国,张有名,李冰
0
(1. 云南省地质调查院, 云南 昆明 650216;
2. 自然资源部三江成矿作用及资源勘查利用重点实验室, 云南 昆明 650051)
摘要:
滇西北香格里拉地区已成为我国重要的铜钼资源勘查开发基地,区内的燕山期岩浆岩带呈南北向纵跨义敦岛弧、甘孜-理塘结合带及扬子西缘坳陷带,并伴随着钨钼多金属矿化,形成了休瓦促、麻花坪等大中型钨多金属矿床。区内的钨矿床与花岗岩有直接成因和空间联系,具有剩余重力低异常、弱正磁异常、钨锡钼铋组合异常及钨锡自然重砂异常特征。本文通过休瓦促、麻花坪典型矿床分析,总结钨矿时空规律、控矿因素及成矿模式,结合区域重力、航磁、化探、重砂等异常,综合分析该区具有寻找石英脉型、矽卡岩型、岩浆热液型钨多金属矿的找矿潜力,并探讨了钨矿找矿方向。
关键词:  找矿方向  成矿规律  钨矿床  香格里拉  滇西北
DOI:10.19826/j.cnki.1009-3850.2022.01002
附件
投稿时间:2021-09-03修订日期:2021-12-18
基金项目:本文受国家自然科学重点基金项目(92055314)、云南省自然资源厅项目(4530000HT201902580)和四川省科技计划项目应用基础研究面上项目(2018JY0175)联合资助
Metallogenic regularity and prospecting direction of tungsten deposits in Shangri-La area,NW Yunnan Province,China
DONG Tao, DU Bin, DUAN Zhaoyan, CAO Xiaomin, SONG Xufeng, DONG Hongguo, ZHANG Youming, LI Bing
(1. Yunnan Institute of Geological Survey, Kunming 650216, China;
2. Key Laboratory of Sanjiang Metallogeny and Resources Exploration and Utilization, MNR, Kunming 650051, China)
Abstract:
The Shangri-La area, NW Yunnan province, has become an important Cu-Mo exploration and development base in China. The Yanshanian intrusions longitudinally cross the Yidun terrane, Gantze-Litang suture zone, and western margin of the Yangtze Block from north to south, accompanied by W-Mo polymetallic mineralization in the region. Several large-/medium-sized tungsten deposits are discovered in this belt, e.g., the Xiuwacu and Mahuaping deposits. The tungsten metallogenesis is genetically-spatially related to the coeval granitoids, and the deposits are characterized by low residual gravity anomaly, week positive magnetic anomaly, W-Sn-Mo-Bi anomaly association, and W-Sn natural placer abnormal. Basing on the systematic studies of the typical Xiuwacu and Mahuaping deposits, this study aims to comprehensively analyse the potential quartz-vein type, skarn type, hydrothermal type tungsten polymetallic deposits by means of anomalies of regional gravity, aeromagnetism, geochemistry and placer.The prospecting direction of tungsten in the region is discussed.
Key words:  exploration direction  metallogenic law  tungsten deposits  shangri-La  NW Yunnan

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