DOI:
矿床地质:1992,Vol.>>Issue(2):154-164

新疆包古图金矿床特征及其成因
中国科学院地质研究所
Characteristics And Genesis Of Gold Deposits In Baogutu, Xinjiang
()
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: 2148   全文下载次数: 1970   点此下载全文
        
中文摘要:西准噶尔包古图地区已发现20多个金矿床和矿点,它们与海西期发育的闪长质小岩体群和脉岩群有密切的成因联系。为石英脉-网脉型矿脉,其分布受北东向裂隙控制,无论侧向还是纵向都呈平行排列和成群出现。含金矿物是自然金和银金矿。经石英和黄铁矿的气液包裹体测试表明,金矿化温度170~305℃,平均222℃;矿化条件为还原和酸性环境;矿液主要为岩浆热液和大气降水。
Abstract:More than 20 gold deposits and occurrences have been discovered in Baogutu area, west Junggar. They are closely related to Hercynian dioritic intrusive groups and vein groups. Ore veins are of quartz vein type and stockwork type, which are in parallel arrangement both laterally and vertically with their distribution strictly controlled by NE-trending fissures. Decrepitation temperatures of inclusions in quartz and pyrite show that mineralization temperatures of native gold are 170~305℃, averaging 222℃. Chemical composition of ore minerals also implies that the mineralization temperature of native gold is low. Thermoelectricity of pyrite is mainly of P type and, next, mixed P and N type. Fluid inclusion composition of minerals indicates a reducing and acid mineralization environment. Hydrogen and oxygen isotopic composition demonstrates that mineralizing fluids are magmatic water and meteoric water.
文章编号:    
中图分类号:     
文献标志码:

引用文本:
齐进英,熊义大.1992.新疆包古图金矿床特征及其成因[J].矿床地质,11(2):154~164
.1992.Characteristics And Genesis Of Gold Deposits In Baogutu, Xinjiang[J].Mineral Deposits11(2):154~164
图/表
您是第244227325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