###
DOI:
有色金属工程:2021,(3):-
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
桂东北珊瑚钨锡矿床地质特征及流体包裹体研究
黄长帅1, 吴小雷1, 卢见昆1, 徐文杰1, 邓明国2, 黄理善1
(1.中国有色桂林矿产地质研究院有限公司;2.昆明理工大学国土资源学院)
Geology and Fluid Inclusion of Shanhu Tungsten-Tin Deposit in Northeast Guangxi
HUANG Changshuai1, WU Xiaolei1, LU Jiankun1, XU Wenjie1, DENG Mingguo2, HUANG Lishan1
(1.China Nonferrous Guilin Institute of mineral geology Co,Ltd,Guilin;2.School of land and resources,Kunming University of science and technology,Kunming)
摘要
图/表
参考文献
相似文献
本文已被:浏览 266次   下载 186
投稿时间:2020-07-01    修订日期:2020-09-07
中文摘要: 珊瑚钨锡矿床是南岭成矿带西段桂东北地区一大型石英脉型钨锡多金属矿床,其大部分矿石中钨锡紧密共生。本文选取与锡相关的三个主成矿阶段(伟晶质、云母石英脉及石英脉)矿石中锡石流体包裹体,开展岩相学观察、显微测温和激光拉曼分析等测试工作。结果表明,伟晶质型锡石包裹体均一温度288℃~346℃,集中在310℃左右,盐度w (NaCl eq)4.65%~8.95%;云母石英脉型均一温度245℃~276℃,集中在270℃左右,盐度6.30%~8.55%;石英脉型均一温度235℃~343℃,集中在250℃左右,盐度4.65%~6.45%;总体而言,与锡矿化相关的流体为中高温、低盐度的NaCl-H2O流体体系。研究认为,伟晶质阶段成矿流体温度相对较高,以气液相为主,密度较低,流体溶解度较大,其盐度分布范围较广;随着成矿流体的运移、冷却,至成矿中后期的云母石英脉、石英脉成矿阶段,流体的温度逐渐降低,成分以富液相为主,密度逐渐增大,溶解度降低,盐度分布趋于集中。
Abstract:ShanHu tungsten tin deposit is a large-scale quartz vein type tungsten tin polymetallic deposit in the northeast of Guangxi in the western part of Nanling metallogenic belt,tungsten and tin closely associated in most of the ores.In this paper, the cassiterite fluid inclusions in the ore of three main metallogenic stages (peritectic, mica quartz vein and quartz vein) related to tin were selected to carry out petrographic observation, microthermometry and laser Raman analysis.The results show that the homogenization temperature of pegmatite cassiterite inclusions ranges from 288℃ to 346℃, concentrated at 310℃,and salinity is 4.65%~8.95%;the homogenization temperature of mica quartz vein type is 245℃~276℃, concentrated at 270℃,and the salinity is 6.30%~8.55%; the homogenization temperature of quartz vein type is 235℃~343℃, concentrated at 250℃, and salinity is 4.65%~6.45%; generally speaking, the fluid related to tin mineralization is NaCl-H2O with medium-high temperature and low salinity.The study shows that the temperature of ore-forming fluid is relatively high in pegmatite stage, mainly in gas-liquid phase, with low density and large fluid solubility, and its salinity distribution range is wide; with the migration and cooling of ore-forming fluid, the temperature of fluid gradually decreases, and the composition is mainly in liquid-rich phase, with the density gradually increasing and the solubility decreasing in mica quartz vein and quartz vein ore-forming stage in the middle and late stage of ore-forming,the distribution of salinity tends to be concentrated.
文章编号:     中图分类号:P575.9    文献标志码:
基金项目:国家“十二五”科技支撑计划课题资助(2015BAB05B05);广西壮族自治区地质勘查基金资助项目(20180216)
引用文本:
黄长帅,吴小雷,卢见昆,徐文杰,邓明国,黄理善.桂东北珊瑚钨锡矿床地质特征及流体包裹体研究[J].有色金属工程,2021,(3):.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线
86-10-63299224

杂志信息

期刊简介

相关下载

联系我们

电话:86-10-63299224/63299153

传真:010-63299754

Email:ysjsgc@bgrimm.com

邮编:100160

地址:北京市南四环西路188号总部基地十八区23号楼

关注微信公众号