江西香炉山外围角岩型白钨矿成矿地质特征及控矿因素分析  

Metallogenic Geological Characteristics and Ore-controlling Factors of Hornstone Scheelite in the Periphery of Xianglushan, Jiangxi Province

作　　者：孔凡斌 温润涛 屈亚灿 程冰冰 汪国华 KONG Fanbin;WEN Runtao;QU Yacan;CHENG Bingbing;WANG Guohua(Northwest Jiangxi brigade,Jiangxi Geological Bureau,Jiujiang 332000,Jiangxi,China;Jiangxi Xiushui Xianglushan Tungsten Industry Co.,Ltd.,Jiujiang 332400,Jiangxi,China)

机构地区：[1]江西省地质局赣西北大队,江西九江332000 [2]江西省修水香炉山钨业有限责任公司,江西九江332400

出　　处：《中国钨业》2021年第3期11-18,共8页China Tungsten Industry

基　　金：江西省科学技术厅国家科技奖后备项目培育计划(20203AEI91004);江西省地质勘查基金项目(20200022)

摘　　要：香炉山钨矿床是赣北九岭成矿带的重要组成部分,在其外围找矿勘查过程中,新发现了大岩下、张天罗、形坪3个矿床。文章在介绍大岩下矿床地质特征的基础上,论述了地层、构造、岩浆岩、围岩蚀变等对成矿的控制,总结了找矿标志和控矿因素。研究认为矿体主要赋存在岩体接触带与围岩层间破碎带中,为典型的接触变质(交代)角岩型白钨矿床。矿床的主要成因类型是高-中温热液充填-交代矿床,燕山晚期细粒黑云母花岗岩及角岩岩组对矿体的控制具有关键作用,区内褶皱、断裂及层间破碎带也是重要的控矿因素。Xianglushan tungsten deposit is an important part of Jiuling metallogenic belt in northern Jiangxi province.Recently,prospecting has been carried out in its periphery and three new deposits have been discovered,including Dayanxia deposit,Zhangtianluo deposit and Xingping deposit.In order to summarize the ore-controlling law and guide the next exploration of the deposit and its periphery,this paper,based on the introduction of the geological characteristics of Dayanxia deposit,discusses the control of strata,structure,magmatic rock and wall rock alteration on the mineralization,and summarizes the prospecting indications.It is considered that the ore bodies mainly occur in the fracture zone between the rock mass contact zone and the surrounding rock,and are typical contact metamorphic(metasomatic)hornstone scheelite deposits.The main genetic type of the deposit is high-medium temperature hydrothermal filling-metasomatism deposit.Fine biotite granite and hornfels in the late Yanshan period play a key role in controlling the orebody,and folds,faults and interlayer fracture zones in the area are also important ore-controlling factors.

关 键 词：白钨矿 成因类型 控矿因素 角岩 找矿标志 赣北 

分 类 号：P618.67[天文地球—矿床学]