大姚县秀水河铜金矿成矿地质条件及找矿前景探讨  

Metallogenic Geological Conditions and Mineral Exploration Prospect of Copper-gold Mine in Xiushui River of Dayao County

作　　者：李建斌 罗文军 杨石永 周伟山 LI Jian-bin;LUO Wen-jun;YANG Shi-yong;ZHOU Wei-shan(Chuxiong Survey Institute,Yunnan Nonferrous Geological Bureau,Chuxiong,Yunnan 675000,China)

机构地区：[1]云南省有色地质局楚雄勘查院,云南楚雄675000

出　　处：《云南冶金》2024年第2期21-29,33,共10页Yunnan Metallurgy

摘　　要：大姚县秀水河铜金矿矿体主要赋存于花岗质片麻岩、糜棱岩化白云英片岩中,受构造破碎带控制,岩石劈理、节理裂隙发育,较破碎,具硅化、碳酸盐化等特征,矿化主要为铜矿化及褐铁矿化,见孔雀石、褐铁矿呈细脉状、薄膜状、浸染状沿破碎带分布,局部可见少量黄铜矿、蓝铜矿、斑铜矿呈散点状分布。通过区内土壤地球化学测量工作,发现区内元素组合异常与已知矿化带吻合较好,异常浓集中心与已知矿点相对应,且异常强度高,指示该区具有良好的成矿地质条件及较大的找矿前景。The occurrence of copper-gold ore body of Xiushui River of Dayao county mainly in granitic gneiss,mylonitization dolomitic schist,it is controlled by structure fracture zone,the growth of rock cleavage and the joint fissure is breaking,it has features of silicification,carbonatization and so on,mineralization mainly is copper mineralization and limonite mineralization,the malachite,limonite presents thin veins,thin-film and impregnating,its distribution is along with the crushed zone,a small amount of visible chalcopyrite,azurite,bornite distributed as the dispersion morphology.It found the abnormal element combination is matched with the known mineralized zones in the area through soil geochemical measurement work,the abnormal concentration center corresponds to the known mineral occurrence,and the abnormal intensity is high,showing the zone has better metallogenic geological conditions and good ore-prospecting future.

关 键 词：花岗质片麻岩 白云英片岩 元素异常 

分 类 号：TD263[矿业工程—矿井建设]