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1地质概况矿区位于海南中北部定安县富文镇境内,大地构造位置处于华南褶皱系五指山褶皱带北缘,位于五指山隆起北部的雷鸣断陷中。矿区地层简单,主要为中生界白垩系下统鹿母湾组(K1l)的一套含砾碎屑沉积岩,岩性主要为含砾长石石英砂岩,泥质粉砂岩,浊积岩,与上覆白垩系报万组整合接触。区域上受近东西向王五-文教深大断裂的控制。矿区岩浆活动频繁,有石英闪长岩脉、花岗岩脉及煌斑
1 Geological Survey The mining area is located in Fuwen Town, Ding’an County, north-central Hainan. Its tectonic location is located in the northern margin of the Wuzhishan fold belt of the South China Fold System and is located in the Thunder-Depression in northern Wuzhishan uplift. The strata of the mining area are simple and consist mainly of a set of gravelly clastic sedimentary rocks of the Cretaceous Lower Lumawan Formation (K1l) of the Mesozoic. The lithologies are mainly gravel feldspar quartz sandstone, argillaceous siltstone, turbidite, and Overlying the Cretaceous reported group integration contact. The area is controlled by the nearly east - west king - five - deep cultural and cultural faults. Magmatic activity in the mining area is frequent, with quartz diorite veins, granite veins and bright spots