吉林延边五凤、五星山金矿床地球化学特征及其成因
Genesis and Geochemical Characteristics of the Wufeng-Wuxingshan Gold Deposit in Yanbian, Jilin, China
贾大成 1杜明龙 2高文 1张潇 1姜涛 1唐烁 3何宽民3
作者信息
- 1. 吉林大学地球探测与信息技术学院,长春130026
- 2. 吉林大学地球探测与信息技术学院,长春130026;河北省地质矿产勘查开发局第五地质大队,河北唐山550002
- 3. 吉林大学地球探测与信息技术学院,长春130026;河北省地质矿产勘查开发局第四地质大队,河北承德067000
- 折叠
摘要
五凤和五星山金矿为延边地区中生代火山岩金、铜成矿带中典型的金矿床.通过岩石化学、成矿元素、流体包裹体和同位素组成等方面的分析,提出五凤和五星山金矿床属于典型的冰长石-绢云母型浅成低温热液型金矿床,其形成是深部火山-热液流体系统与浅成大气流体的混合.成矿构造环境与陆内造山带后期垮塌机制有关,造山带的垮塌与古太平洋板块斜向俯冲导致的大型走滑剪切有密切的成因联系.
Abstract
The Wufeng-Wuxingshan gold deposit, which develops in the Mesozoic volcanic gold-copper metallogenic belt of the Yanbian area, is a typical gold deposit. The analytical results of petrochemistry, microelement, isotope and fluid inclusion show that the Wufeng-Wuxingshan gold deposit is a typical adularization-sericitization epithermal genesis type deposit. The deposit was formed by the interaction of deep volcanic-fluids and near surface atmospheric-fluids. The metallogenic tectonic setting is relevant to the collapse of the late intra-continental orogenic belt and the collapse of the orogenic belt is closely related with the large strike-slip shearing formed by the paleo-Pacific plate subduction.
关键词
浅成低温热液型金矿床/成矿地球化学/成因类型/延边地区Key words
epithermal gold deposit/metallogenic geochemistry/genesis type/Yanbian area引用本文复制引用
基金项目
国家自然科学基金(40973019)
中国地质调查局资助项目(1212010070306)
出版年
2012
NETL
NSTL
维普
万方数据