贵州西南部与玄武岩有关的铜矿特征及找矿前景

Characteristic of Copper Deposits Associated to the Basalt in the Southwest of Guizhou and Forecast of prospecting

近年在贵州峨眉山玄武岩西南部发现若干玄武岩铜矿点,其成矿地质特征与玄武岩北部的贵州黑山坡、云南鲁甸、云南永胜得等玄武岩铜矿有一定区别,前者主要产于玄武岩下部或底部,铜矿多受小尺度断裂构造控制；后者多产于玄武岩上部旋回、受植物层或含沥青质层控制,呈层带型产出。本文通过贵州西南部玄武岩成矿地质特征的研究,进一步丰富了峨眉山玄武岩铜矿研究资料,并揭示了研究区找铜前景。

During recent years several basalt copper occurrences of the Emeishan Fm have been found in the southwest of Guizhou, the minerogenic geology which certainly differ from the basaltic copper deposits in the north of basalt at Heishanpo of Guizhou, Ludian and Yongshengde of Yunnan, the former chiefly yield at the low part and base of the basalt, the copper deposits are mostly dominated by small - scale faulting structures ; the latter mostly occur on the upper part of the basalt under control of foliage layer or asphalt layer, taking on layering and belt shape in occurrence. Through study of the metallogenic geologic feature in the southwest of Guizhou in this paper, the information on copper deposits is further enriched and the copper forecast is disclosed in the research area.