龙头山金矿床位于广西贵港市西北14 km处,区域构造上位于华南褶皱系西南部大瑶山隆起的龙山背斜南西倾伏端,矿区及外围出露地层有寒武系黄洞口组下段、泥盆系下统莲花山组。矿床构造为残留火山颈与其围岩的褶皱,矿区断裂构造发育有NW、SN、NE与EW等四组,其控矿构造为NW向构造。矿区内岩浆岩主要是燕山期的酸性、中酸性侵入岩和喷出岩类,其中花岗斑岩出露于岩体的中心,侵位于流纹斑岩中(朱桂田,2002;曾南石等,2011),流纹斑岩与成矿具有密切的关系。矿体主要赋存在流纹斑岩、隐爆角 The Longtoushan gold deposit is located 14 km northwest of Guigang City in Guangxi Province and is located on the southwestern and downslope of the Longshan anticline in the uplift of Dayaoshan Mountain in the southwestern part of the South China fold system. The lower exposed area of ​​the mining area and outer periphery is the lower Cambrian Huangnongkou Formation, Devonian under Lianhua Mountain Group. The deposit is characterized by the folds of the remaining volcanic necks and its surrounding rocks. There are four NW, SN, NE and EW tectonic faults in the mining area. The ore-controlling structure is NW-trending. The magmatic rocks in the mine area are mainly acidic, intermediate-acid intrusive rocks and expelled rocks in the Yanshanian period. The granitic porphyry is exposed in the center of the rock mass and invaded in the rhyolite porphyry (Zhu Guitian, 2002; Zeng Nanshi, et al , 2011). Rhyolite porphyry is closely related to metallogenesis. Ore body is mainly present in rhyolite porphyry, cryptoexplosive angle