攀枝花中坝乡天宝山石墨矿床地质特征及找矿标志

Geological Features and Ore Criteria of the Tianbaoshan Graphite Deposit in Zhongba, Panzhihua

天宝山石墨矿赋存于前震旦系康定群冷竹关组片岩建造中,呈似层状产出。根据岩性、碳质来源及矿床成因等地质特征,天宝山石墨矿属于沉积变质型矿床。天宝山石墨矿床找矿标志矿主要有地层时代标志(前震旦系康定群冷竹关组变质岩层)、岩性标志(云母石英片岩)、岩浆岩标志(石英闪长岩)和物探异常标志(低电阻、高极化率)。在调查区共圈定石墨矿体3条,其中KT1矿体走向最大长度约1.92km,矿体最大出露厚度约12m,矿石品位3%~14.95%。通过地质和物探工作,发现天宝山石墨矿成矿规模大,具有较大的社会经济价值。

The Tianbaoshan graphite deposit occurs as stratoid form in schist of the Lengzhuguan Formation of the Pre-Sinian Kangding Group.It is a sedimentary metamorphic deposit.3 graphite orebodies are delineated in the ore district.The orebody KT1 is 1.92 km long with biggest thickness of about 12 m,ore grade of 3-14.95%.Its main ore criteria are the micaceous quartz-schist of the Lengzhuguan Formation,quartz diorite,low resistivity and high polarizability.