| 潘中奎,王滔.甘肃省肃北县红石头沟化探异常及“三位一体”找矿预测[J].矿产勘查,2019,(6):1435-1443 |
| 甘肃省肃北县红石头沟化探异常及“三位一体”找矿预测 |
| Geochemical anomaly and “Trinity” prospecting prediction of Hongshitougou area, Gansu province |
| 投稿时间：2019-01-10 |
| DOI： |
| 中文关键词: 水系沉积物测量综合异常 矽卡岩化大理岩 “三位一体”找矿理论 红石头沟钨矿点 甘肃肃北 |
| 英文关键词: comprehensive anomaly of stream sediments, skarnized marble, “trinity” prospecting theory, Hongshitougou Tungsten ore point, Subei county |
| 基金项目: |
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| 摘要点击次数: 1150 |
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| 中文摘要: |
| 在祁连西段的大泉-黑刺沟一带开展1∶5万矿产远景调查时,圈定了一处W、Sn、Bi综合异常,通过查证,发现了红石头沟钨矿点。圈出白钨矿化带两条,其中一条长度大于1200m,平均厚度2.20m,WO3平均品位0.32%,含矿岩性主要为北大河岩群b岩组的矽卡岩化大理岩。利用“三位一体”找矿理论进行分析认为,矿点北侧中酸性岩体为成矿提供了良好的物质来源及热动力条件,是成矿地质体,断层构造、侵入接触带和岩性接触面(硅/钙面)是主要的成矿构造和成矿结构面,成矿作用为岩浆热液接触交代作用。红石头沟钨矿点成矿地质条件较好,具有良好的找矿前景,异常北侧北大河岩群与花岗岩体接触部位具有找矿潜力。 |
| 英文摘要: |
| When carrying out a prospective survey of 1∶50,0 minerals in the Daquan-Heicigou area of western Qilian, a comprehensive anomaly of W, Sn and Bi was delineated. By verifying, Hongshitougou tungsten ore poine was found, and cirlieing two scheelite mineralization belts, one of them is more than 1200m long and has an average thickness of 2.20m, the WO3 grade is 0.078%-2.39%, and the ore-bearing lithology is mainly skarnized marble of Beidahe rock group b petrofabric. According to the “trinity” prospecting theory, the intermediate-acid rock mass in the north of the ore poine provides a good material source and thermodynamic conditions for mineralization, being the metallogenic geological body, faults, intrusive contact and Lithologic interface (silica-calcium plane) are the main metallogenic tectonics and structural planes, mineralization is contact metasomatism. Hongshitougou metallogenic geological conditions are good and have well prospecting prospects, the contact area between Beidahe Group and intermediate-acid rock mass on the north side of the anomaly has prospecting potential. |
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