文峪金矿矿床成因讨论  

ON THE GENESIS OF WENYU GOLD DEPOSIT

作　　者：王铁军[1] 樊秉鸿 关康[1] 陈新帮 贺永利 刘军 梁斌祥 王建民 

机构地区：[1]天津地质研究院,天津300061 [2]灵宝金安矿业有限责任公司,河南灵宝472500

出　　处：《地质找矿论丛》2002年第2期85-91,共7页Contributions to Geology and Mineral Resources Research

摘　　要：流体包裹体测温表明 ,文峪金矿成矿温度 180～ 45 0℃ ,为中高温热液。成矿压力 1.0×10 5～ 1.4× 10 5k Pa,根据静岩压力推算的成矿深度为 3.6～ 5 .2 km。包裹体盐度特征显示出成矿场内流体以深源流体为主 ,混合的地表渗透水所占比例约 10 %～ 15 %。文峪金矿成矿过程中导致矿质沉淀的主要因素是温度下降及由此导致的 CO2 - H2 O不混溶现象。文峪及小秦岭地区金矿床的成矿热液来源于与文峪花岗岩同源演化的深部岩浆热液。Wenyu gold deposit is a medium-high temperature deposit with ore-forming temperature of 180℃~450℃ and ore-forming pressure of 1000-1400 Pa measured from fluid inclusion. The calculated depth where the ore was formed is 3.6~5.2 km. The fluid inclusion salinity is characterized by deep sourced fluid and incorporation of 10%~15% penetrating meteroric water. Temperature decrease and immicibility of CO 2-H 2O concerned is the main factors for ore precipitation. Ore fluid of Wenyu gold deposit and those in Xiao Qinling area came from deep source fluid that is cognated and evolved together with the deep magmatic fluid of Wenyu granitic intrussive. Gold ore was formed in Mesozoic Era.

关 键 词：双壳幔结构 韧性剪切带 流体包裹体 不混溶作用 岩浆热液 文峪金矿 河南省 

分 类 号：P618.51[天文地球—矿床学] P611[天文地球—地质学]