摘要
西滩金矿床是近年西安工程学院发现的重要金矿床之一。该矿床是以含金玉髓质石英为基本矿石建造的脉状热液矿床，成矿物质来源于幔源火山岩（ 石炭系安山岩），成矿流体中Ｈ２Ｏ 主要为大气降水，岩浆活动是成矿流体起源及演化成矿的热动力；成矿温压条件均较低，从矿物组合及成矿学特点，把该矿床归为火山岩区冰长石绢云母型低温浅成热液矿床；但特殊之处是成矿作用发生在碰撞造山过程中，与岛弧安山岩的成岩年龄有较大差别。
Xitan gold deposit is one of the important deposits discovered by Xi'an Engineering University recently The deposit is a hydrothermal vein one of chalcedony gold ore formation The metallogenic materials came from mantle volcanic rocks (andesite of Carboniferous period) and the water in the metallogenic fluid consists of meteoric water, and the magmatic activity was the thermal power of forming and evolution of the metallogenic fluid According to the low metallogenic temperature and pressure and the mineral assemblage of the ore, and features of metallogenism, the deposit is considered as adularia sericite type epithermal gold deposit But the metallogenesis occured in collision and orogenic period [
出处
《西安工程学院学报》
1999年第4期1-5,共5页
Journal of Xi'an Engineering University
基金
国家科技攻关项目
关键词
成岩成矿幕
低温浅成热液
金矿床
热液矿床
Xitan gold deposit
ore formation
metallogenic episode
epithermal solution
adularia sericite type
