云南镇沅县登高铅铜矿地质特征及找矿标志

THE GEOLOGICAL FEATURE AND PROSPECTING CRITERIA OF DENGGAO PB-CU DEPOSIT IN ZHENYUAN,YUNNAN

云南镇沅县登高铅铜矿位于哀牢山造山带之九甲大断裂带上,铅铜矿体呈似层状、大透镜状产于层间构造破碎带中,矿体近矿围岩为二叠系碳酸盐岩;铅铜矿体受构造控矿明显,属中—低温热液型矿床。沿断裂带分布的物化探异常、和二叠系碳酸盐岩之层间构造破碎带,以及围岩蚀变特征是重要的找矿标志。

Denggao Pb-Cu deposit in Zhenyuan,Yunnan is on Jiujia megafault zone of Ailaoshan Mts orogenic zone.The Pb-Cu orebody is stratoid,big lenticular in structure fracture zone.And the wall rock near orebody is P carbonatite.The Pb-Cu orebody is controlled clear by the structure,belonging to the middle-low T hydrothermal deposit.The important prospecting criteria are the geophysical-geochemical anomaly,interlayer fracture zone and alteration feature of wall rock.