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黔西南微细浸染型金矿的地质特征和几点认识
引用本文:钱建平. 黔西南微细浸染型金矿的地质特征和几点认识[J]. 桂林工学院学报, 2001, 21(1): 27-34
作者姓名:钱建平
作者单位:桂林工学院资源与环境工程系,
基金项目:原中国有色金属工业总公司科研项目! (编号 97-D - 0 4)
摘    要:系统总结了黔西南微细浸染型金矿的基本特征。提出了黔西南微细浸染型金矿的形成是燕山期区域构造-热流-成矿物质演化过程的重要事件;构造是本区主要的控矿因素,亦是金矿形成的主要成矿作用;容矿细碎屑岩石,为金铁沉淀提供了有利的环境;黔西南微细浸染型金矿具有统一的矿床成因,金主要来自于深部地质体,部分来自于上部地层;成矿流体是以大气降水为主兼有深部流体、地质流体混合形成,为具有中低温、中低盐度、弱酸性-弱碱性、还原性特点的A^ -Cl^--Ca^2 型流体。

关 键 词:地质特征 贵州 微细浸染型金矿床 成矿物质 控矿构造 成矿作用
文章编号:1006-544X(2001)01-0027-08
修稿时间:2000-03-22

Geological characteristics and several considerations of micrograined disseminated gold deposits in southwest Guizhou
Qian Jian-ping. Geological characteristics and several considerations of micrograined disseminated gold deposits in southwest Guizhou[J]. Journal of Guilin University of Technology, 2001, 21(1): 27-34
Authors:Qian Jian-ping
Abstract:Research on the basic characteristics of micrograined disseminated gold deposits in southwest Guizhou shows that these deposits were formed as a result of the regional tectonizm-hotflow-ore-forming substance evolution. Structure is the main ore-control factor and the ore-forming process in this area. The microclastic rock of host strata furnishes gold ore deposition with an advantageous environments.These deposits have the same origin. Gold is mainly from the deep geological bodies and partly from the upper strata. Ore-forming fluid is mixed with plutonic fluid ,formation water and meteoric water and it is Na +-Cl --Ca 2+ type with middle to low temperature, middle to low sanility, weak acidity to weak alkalinity and reducibility.
Keywords:gold deposit  micrograined disseminated type  geological characteristics  Guizhou
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