四川德昌县铜厂坡铜铁矿地质特征及找矿前景

Geological Features and Prospecting Potential of the Tongchangpo Cu-Fe Deposit in Dechang, Sichuan

铜厂坡铜铁矿位于会理岔河锡铁铜银矿集区内。矿体产于前震旦系会理群力马河组二段褐灰色石英片岩构造破碎带或层间破碎带中,呈似层状、透镜状产出。矿体受构造控制明显,产状与控矿构造基本一致。矿石主要为含铜菱铁矿、含铜褐铁矿。矿床属于构造热液型。该文通过对矿床区域地质背景、矿区地质特征、矿体特征、矿石质量、围岩蚀变的分析,对矿床控矿因素、成因、找矿标志进行了讨论,认为该矿区成矿地质条件好,具有较好的找矿前景,并提出了下一步工作的建议。

The Tongchangpo Cu-Fe deposit is located in the Huili-Chahe Sn-Fe-Cu-Ag polymetallic cluster of mineral deposits. The ore body is confined to the structural fracture zone or interlayer fracture zone of brown-grey quartz schist of the Second Member of the Limahe Formation. The ore body occurs as layered and lenticular form and is obviously controlled by structure. The ore is mainly copper-bearing siderite and copper-bearing limonite. The deposit belongs to the structural hydrothermal type. This paper has a discussion on ore-control factors, genesis and ore criteria of the deposit based on the geological background, geological features of the deposit, occurrence of the ore body, ore quality, and wallrock alteration. The studied area has good ore-forming geological conditions and better prospecting potential. Some suggestions on future work are made.