| 肖文进.新疆哈密天宇北金钨矿地质特征及找矿预测[][J].地质与勘探,2023,59(5):921-931 |
| 新疆哈密天宇北金钨矿地质特征及找矿预测[] |
| Geological Characteristics and Prospecting Prediction of the Tianyubei Gold-Tungsten Deposit in Hami, Xinjiang |
| 投稿时间：2023-02-20 修订日期：2023-05-07 |
| DOI：10.12134/j.dzykt.2023.05.001 |
| 中文关键词: 金钨矿 矽卡岩型 地质特征 找矿预测 天宇北 哈密 新疆 |
| 英文关键词: gold-tungsten deposit, skarn type, geological characteristics, prospecting prediction, Tianyubei, Hami, Xinjiang |
| 基金项目:中国地质调查局项目“东天山成矿带景峡地区矿产地质调查”（编号：DD20160011）项目资助 |
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| 中文摘要: |
| 新疆天宇北金钨矿地处沙泉子断裂以南的中天山地块，为近年新发现的钨矿点，产于新太古界-古元古界天湖岩群碳酸盐岩与晚元古代斜长片麻状花岗岩、晚石炭世-早二叠世二长花岗岩接触带，且与以钨为主的1:5万岩屑测量综合异常对应，与北山地区钨钼矿为同一成矿带，金钨矿具有多期岩浆活动及成矿作用特点。该矿点矿床类型属矽卡岩型钨矿，矿化以白钨矿化为主，伴生金，含矿二长花岗岩成矿时代为华力西期。槽探工程控制矿体长大于220 m，平均厚2.70 m，WO3平均品位0.46%。钻探工程和物探异常激电测深双验证表明：钨矿化带在深部有一定的延伸。在该区及外围，围绕前寒武纪碳酸盐岩地层与中酸性岩浆岩的接触带，开展钨多金属地质找矿工作，找矿潜力大。 |
| 英文摘要: |
| The Tianyubei Au-W deposit in Xinjiang is located in the middle Tianshan terrane south of the Shaquanzi fault. It is a newly discovered tungsten deposit in recent years, occurring in the contact zone between the carbonate rocks of the Neoarchean-Paleoproterozoic Tianhu Group and the Late Proterozoic plagioclase gneiss granite, as well as the Late Carboniferous-Early Permian monzogranite. It corresponds to the comprehensive anomaly of 1:50,000 lithic fragments survey, which is dominated by tungsten. It belongs to the same metallogenic belt as the W-Mo deposit in Beishan area, and the Au-W deposit is characterized by multi-stages of magmatic mineralization. This belongs to the skarn type tungsten deposit, with scheelite mineralization as the main mineralization, accompanied by gold. The mineralization age of the ore-bearing monzogranite is the Variscan period. The trenching engineering controls the length of the ore body to be greater than 220 meters, with an average thickness of 2.70 meters, and an average grade of 0.46% for WO3. Drilling engineering and geophysical anomaly sounding show that the W mineralization zone has a certain extension in the deep. Therefore, future tungsten polymetallic prospecting is suggested to be conducted around the contact zone between the Precambrian carbonate strata and the medium-acid magmatic rocks in this area, with great potential for exploration. |
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