摘要
越城岭地区属于桂东北钨锡矿集区,共有30多处钨锡矿床点分布。钨锡矿化类型主要有矽卡岩-角岩型、矽卡岩型及石英脉型三类,矽卡岩-角岩型白钨矿为本区最重要的矿化类型。矿化主要赋存于寒武系清溪组中,钙质碎屑岩主要形成矽卡岩-角岩型似层状矿,碳酸盐岩中主要形成矽卡岩型矿,碎屑岩和花岗岩主要形成石英脉型钨锡矿。钨锡矿化主要分布于岩体与地层的接触带、岩体内和近岩体的地层中,加里东期花岗岩(越城岭岩基)W成矿元素初步富集,燕山早期岩株富W、Sn,为本区主要成矿物质来源处。矿床点主要沿越城岭东侧龙水—会龙铺弧形构造分布,矿脉多赋存于NNE向破碎裂隙带,NWW向及EW向张性、张扭性裂隙、层间破碎带。
Yuechengling area belongs to the concentration district of tungsten-tin deposits in the northeast Guangxi. There are more than 30 tungsten-tin deposits and ore occurrences. There are three types of tungsten-tin mineralization, skarn - hornstone type, skarn type and quartz vein type. The most important mineralization is skarn - hornstone scheelite type in this area. The mineralization occurs mainly in the Qingxi Formation of the Cambrian system. Skarn - bainite semi-layered mineralization occurs mainly in the calcareous clastic rocks, and skarn type mineralization occurs mainly in the carbonatite, and tungsten tin mineralization of quartz vein type occurs mainly in the clastic and granitic rocks. The tungsten-tin mineralization is mainly distributed in the contact zone of intrusive rock mass and strata,inside the rock mass and in the strata near rock mass. In the Caledonian granite （Yuechengling rock base） W metallogenic element is primarily enriched, and W-Sn elements are rich in the early Yanshanian rocks. These are the main sources of metallogenic material in this area. The deposits and ore occurrences are mainly distributed along the Longshui - Huilongpu arc structure on the east side of Yuechengling mountains. The ore veins are mostly located in the NNE fracture zone, the extensional, tensional and torsional fractures and the interlayer fracture zone in NWW and EW direction.
作者
黄长帅
卢见昆
陶明荣
徐桃
冯国玉
黄杰
HUANG Changshuai;LU Jiankun;TAO Mingrong;XU Tao;FENG Guoyu;HUANG Jie(China Nonferrous Metals（Guilin）Geology and Mining Co.,Ltd.,Guilin 541004,Guangxi,China)
出处
《矿产与地质》
2018年第4期616-621,共6页
Mineral Resources and Geology
基金
广西国土资源厅找矿突破战略行动地质勘查项目"广西融安县四囊矿区金锑矿预查"(桂国土资函[2016]353号)资助
关键词
越城岭钨锡矿
成矿条件
桂东北
Yuechengling tungsten tin deposit
metallogenic condition
northeast Guangxi
