北祁连清水沟-白柳沟矿田块状硫化物矿床成矿特征及找矿方向
The Metallogenic Characteristic and Prospecting of the Massive Sulfide Deposit in Qingshuigou-Bailiugou Ore Field, North Qilian Mountain
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摘要: 主要通过清水沟-白柳沟矿田与白银厂矿田的火山岩成分、微量元素特征成矿蚀变特征、地质特征等综合分析和对比研究，从块状硫化物矿床成矿系列角度，分析和讨论了清水沟-白柳沟矿田与典型的白银厂矿田的某些相似性或可比性，以期指出清水沟—白柳沟一带进一步找矿的潜力和远景地段。结果表明，2矿田无论是在成矿时代、赋矿岩石组合方面，还是在火山机构和成矿特征等方面皆有一定的可比性。由此提出在清水沟-白柳沟地区还有发现白银厂式块状硫化物矿床的潜力，并提出尕大坂是最具找矿潜力的远景区，值得进一步投入勘查工作。Abstract: A comprehensive and comparative analysis was conducted on volcanic rock composition, trace element characteristics, mineralization alteration features and geological features of Qingshuigou-Bailiugou ore field and Baiyinchang ore field. From the perspective of sulfide mass deposit mineralization, the author analyzed and discussed the similarities and comparability between the two ore fields, to indicate the prospecting potential and prospective districts of Qingshuigou-Bailiugou area. Results show that the two ore fields boast comparability in metallogenic epoch, ore-bearing rock combination, volcanic rock formation and mineralization conditions. Therefore, it is considered that there is great prospecting potential in Qingshuigou-Bailiugou area, with Gadaban area being the most prospective area and deserving further investigation.
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