DOI:
矿床地质:1988,Vol.>>Issue(2):49-54

湖北徐家山层状锑矿床地质特征简介
湖北省鄂东南地质大队
Geological characteristics of the Xujiashan stratified antimony deposit in Hubei province
()
本文二维码信息
码上扫一扫!

摘要
图/表
参考文献
相似文献

摘要点击次数: 2358   全文下载次数: 1566   点此下载全文
        
中文摘要:徐家山锑矿产于震旦纪地层中,矿体产出受地层控制,具多层特征。主要矿体型态呈似层、豆荚状,与地层产状一致。矿石物质成分简单。次要矿体呈囊状、脉状,但均与顺层主矿体相连,且均局限于含矿层中。徐家山锑矿属沉积-改造型锑矿床。
Abstract:The Xujiashan stratified antimony deposit occurs in the Sinian sediments on the Damushan brachyanticline of southeastern Hubei and is apparently controlled by stratigraphic horizon. Orebodies take stratoid and lensoid forms, with their dip and strike consistent with the attitude of the wall rocks. Mineral and chemical composition of ores are quite simple ores and wall rocks contain approximately the same trace elements as common carbonate rocks; relict sedimentary structure is observed. All these unequivocally point to a sedimentary origin for this deposit. A few cross veined orebodies are also controlled by stratigraphic horizon and are connected with stratified and nested orebodies. With the increasing distance from the stratified or nested orebodies, the amount of stibnite in veined orebodies gets lower and lower. This suggests that the veined orebodies were formed through hydrothermal transformation, and the stratified orebodies served as the antimony source for these orebodies. The wall rock alteration is mainly solidification, which is rather weak in the stratified orebody, but is quite intense in veined and nested orebodies. The Xujiashan antimony deposit was formed in early epoch.During the long geological history, it experienced repeated structural activities, which resulted in the widespread recrystallization of stibnite as well as the plastic deformation and mechanical fracturing of the orebodies. In addition, the antimonydeposit was transformed by thermal groundwater. All these factors have caused the Xujiashan antimony deposit to assume features of the hydrothermal deposit belonging to sedimentary-transformed type.
文章编号:    
中图分类号:     
文献标志码:

引用文本:
孙汉芝,雷蕾.1988.湖北徐家山层状锑矿床地质特征简介[J].矿床地质,7(2):49~54
.1988.Geological characteristics of the Xujiashan stratified antimony deposit in Hubei province[J].Mineral Deposits7(2):49~54
图/表
您是第244230426位访问者  京ICP备05032737号-5  京公网 安备110102004559
主管单位:中国科学技术协会 主办单位:中国地质学会矿床地质专业委员会 中国地质科学院矿产资源研究所
地  址: 北京市百万庄大街26号 邮编:100037 电话:010-68327284;010-68999546 E-mail: minerald@vip.163.com
本系统由北京勤云科技发展有限公司设计 
手机扫一扫