DOI:
矿床地质:1987,Vol.>>Issue(2):16-28

中国科学院地球化学研究所
沉积改造层控矿床包裹体研究与矿床形成机理探讨
A Discussion On Formation Mechanism Of Stratabound Ore Deposits In China-A Fluid Inclusion Approach
()
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: 2746   全文下载次数: 1787   点此下载全文
        
中文摘要:本文通过流体包裹体研究,结合沉积改造层控矿床的基本地质特征,从物质来源、成矿流体的迁移富集和成矿作用的物理化学条件三个方面探讨了我国沉积改造层控矿床的形成机理。
Abstract:Based on geological characteristics of sedimentary-transformed stratabound deposits in China, the authors have made a fluid inclusion research to approach the formation mechanism of that sort of deposits in the light of their material sources, migration of ore-forming fluids and physical-chemical condition for mineralization. The investigation shows that the ore-forming fluids, a special kind of H2O, were originally heated meteoric waters which reacted with wall rocks and dissolved such components as Na+, Ca2+, K+, C1-, HCO3- and Mg2+. The metallogenic elements, other components of ore fluids and sulfur were mainly derived from the wall rocks. The ore fluids are of Na-Ca-C1-HCO3 system with the salinity from 4 to 14 wt.% NaCl equivalent and density from 0.9 to 1.0 g/cm3. At the temperature of 150~250℃ and under the pressure of 300 to 800 bars, possibly with the participation of bacteria or organic matter, there were formed various sedimentary-transformed stratabound deposits as they appear now.
文章编号:    
中图分类号:     
文献标志码:

引用文本:
卢焕章, 刘丛强.1987.中国科学院地球化学研究所[J].矿床地质,6(2):16~28
.1987.A Discussion On Formation Mechanism Of Stratabound Ore Deposits In China-A Fluid Inclusion Approach[J].Mineral Deposits6(2):16~28
图/表
您是第244226475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