安徽枞阳石家冲地区铜矿成因及开采技术条件探讨

A DISCUSSION ON THE GENESIS AND MINING TECHNICAL CONDITIONS OF THE COPPER DEPOSIT IN THE SHIJIACHONG AREA,ZONGYANG COUNTY,ANHUI PROVINCE

石家冲铜矿位于庐枞盆地南缘。矿体分布受构造破碎带控制,呈脉状、透镜状产出,呈北北西-南南东或近南北走向,向西倾,倾角陡。主要矿石矿物为黄铜矿、黄铁矿,为星点状含铜(金)角砾岩型矿石和细脉浸染状含铜砂岩型矿石。属于中低温热液型矿床。找矿标志有构造、岩性、蚀变、地球化学异常等。本矿床勘查类型是中等复合型矿床,开采技术条件属Ⅱ-4型。

The Shijiachong copper deposit is located in the southern margin of the Luzong Basin,and structural fracture zone controls the distribution of the ore bodies,which are veined and lenticular,trend NNW-SSE or nearly north-south,and dip west steeply.Dominated by chalcopyrite and pyrite,the ore is breccia type containing stellated copper(gold),or sandstone type containing veinlet-disseminated copper.It belongs to a mesothermal and epithermal deposit.The clues for prospecting include structure,lithology,alteration and geochemical anomaly.The prospecting type is medium compound deposit,and the mining technical conditions belong to typeⅡ-4.