海南省高峰金矿矿床地质特征及成矿预测

Geological Characteristic and Metallogenic Prediction of Gaofeng Gold Deposit in Hainan Province

高峰金矿区区域上处于五指山隆起南部与三亚台缘拗陷带的交界部位,夹持于尖峰-吊罗和九所-陵水两条东西向大断裂之间.研究区内出露地层主要为第四系全新统.区内断裂构造发育,并且是主要的容矿和控矿构造.矿石中主要的金属矿物为自然金、银金矿、方铅矿、黄铁矿、黄铜矿、磁铁矿、闪锌矿.基于这些地质特征,并根据两处物化探异常分析,圈定了两个成矿预测区.

Gaofeng gold deposit is located between Jianfeng-Diaoluo and Jiusuo-Lingshui E-W trending deep fault, and its geotectonic position is located between Wuzhishan Uplift and Sanya platform margin depression belt. The mainly outcrop strata are composed of Quaternary Holocene Series in the study area. In this region, the well developed fault structures are the most important ore-hosting and ore-controUing structures. The main ore minerals are native gold, electrum, galena, py- rite, chalcopyrite, magnetite, and sphalerite. Based on these geological characteristics, two metallogenic prediction areas are delineated according to the analysis of two geophysical and geochemical anomalies.