贵州瓮安大坪磷矿地质特征及找矿方向  

Geological Characteristics and Prospecting Direction of Daping Phosphorite Deposit in Weng'an County,Guizhou Province

作　　者：陈志友 王景腾 CHEN Zhiyou;WANG Jingteng(Southwest Energy and Mine Construction Engineering Co.,Ltd.;Southwest Energy&Mineral Group Co.,Ltd.)

机构地区：[1]西南能矿建设工程有限公司,贵州省贵阳市550004 [2]西南能矿集团股份有限公司

出　　处：《现代矿业》2023年第1期38-41,共4页Modern Mining

摘　　要：为对深部地质找矿提供理论依据,通过对大坪磷矿地质特征进行了分析,并将其与邻近矿区地质特征进行对比研究,得出大坪磷矿所在区域的成矿规律。研究结果表明:大坪磷矿位于白岩—高坪背斜南段西翼,总体为单斜构造;矿层呈层状赋存于下震旦统洋水组;主矿体A矿层在矿区内走向延伸大于3.75 km,倾向延伸大于1.01 km。根据大坪磷矿与相邻矿区地质特征的对比研究发现,研究区含磷岩系厚度自东向西逐渐减小,A矿层和B矿层厚度也逐渐减小,B矿层甚至出现尖灭现象。综合分析认为,大坪磷矿北侧、东侧以及其与大湾磷矿之间的空白地带均有较好的找矿潜力。To provide a theoretical basis for deep geological prospecting,this paper analyzes the geological characteristics of Daping phosphate ore,and makes a comparative study with the geological characteristics of adjacent mining areas,and obtains the metallogenic law of the area where Daping phosphate ore is located.The results show that the Daping phosphate deposit is located in the west wing of the southern section of Baiyan-Gaoping anticline,and it is a monoclinic structure.The ore beds are stratified and occur in the Lower Sinian Yangshui Formation.The strike extension of A layer of the main ore body in the mining area is greater than 3.75 km,and the inclined extension is greater than 1.01 km.According to the comparative study of geological characteristics between Daping phosphate ore and adjacent mining areas,it is found that the thickness of phosphorous rock series in the study area gradually decreases from east to west.The thickness of A and B layers also gradually decreases,and the B layer even appears the phenomenon of pinching out.The comprehensive analysis shows that the north and east side of Daping phosphate rock and the blank area between Daping phosphate rock and Dawan phosphate rock have better prospecting potential.

关 键 词：瓮福磷矿 含磷岩系 地质特征 找矿方向 

分 类 号：P619.2[天文地球—矿床学]