摘要
广西平桂地区隐伏花岗岩可分为三类:出露岩体边缘隐伏花岗岩,出露岩体外围全隐伏花岗岩,出露岩体内部隐伏的晚期侵入花岗岩。根据本区岩浆侵位、控岩构造、接触变质、岩(矿)脉、物化探异常、遥感影象等特征,提出5个隐伏花岗岩预测区。在预测区公婆山—骆驼山地段开展壤中电导率及吸附汞测量找矿评价,钻探结果发现了隐伏锡矿。
Hidden granites in Pinggui area, Guangxi may be divided into three types: the hidden granites in the margins of exposed plutons, the fully-hidden granites in the periphery of exposed plutons and later intrusivegranites within exposed plutons. According to the characteristics of theemplacement of magma, rock-control structures, contact metamorphism anddikes or oreveins associated with granites as well as the anomalies ofgeophysical prospecting and geochemical exploration and remote sensingimages, the authors propose five predicting regions of hidden granites. Inthe portion of the Gongposhan-Luotuoshan predicting region prospectingevaluation has been made by using the ionic conductivity method and theabsorbed mercury method. Hidden tin orebodies were discovered by drilling.
关键词
花岗岩
锡矿
找矿标志
隐伏花岗岩
prediction
granite
tin ore deposit
indicator for the deposit
range of reconnaissance
Guangxi/Pinggui
hidden granite
exploration of deep-seated deposits
