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

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-自柳沟-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，值得进一步投人勘查工作。

The Metailogenic Characteristic and Prospecting of the Massive Sulfide Deposit in Qingshuigou-Bailiugou Ore Field,North Qilian Mountain

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 compa- rability 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 metal- logenic 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 investi- gation.