广西平果县龙律—果化堆积型铝土矿地质特征及找矿标志

Geological characteristics and ore-prospecting markers of Longlu–Guohua accumulated bauxite deposits in Pingguo County,Guangxi

广西龙律—果化铝土矿属堆积型铝土矿主要分布在以上泥盆统融县组、石炭系、中二叠统为基底的岩溶洼、谷地、坡地中。矿体的形成、规模、含矿率、矿石质量与矿源层、所处位置及岩溶洼地规模、地形地貌关系密切;矿物、化学成分及结构构造等基本上保持了矿源层的特点,同时又具有后期改造的特征。通过对矿床地质特征的综合分析,总结了区内主要矿化富集规律和建立找矿标志,为矿区下一步地质找矿指明方向。

Longlu-Guohua deposit belongs to an accumulated bauxite type deposit in which the orebody is mainly hosted in the Upper Devonian series Rongxian Group,the Carboniferous and the Middle Permian as the basement of the karst depression,the valley and the slope land in Guangxi.The ore formation,scale,ore-bearing rate,ore quality are closely related to the ore-source layer,the orebody location and the scale of karst depression,the topography and physiognomy.The mineral,chemical composition and structural configuration basically maintain the characteristics of the ore-source layer,and with the characteristics of later-stage transformation.Based on the comprehensive analysis of the geological characteristics of the deposit,the paper has summarized for the main mineralization enrichment regularity and the prospecting markers in the area.It has pointed out the next geological prospecting direction in the mining area.