摘要
河西村钼矿床是近年来新发现的斑岩型钼矿床,矿体赋存于石英二长斑岩体之中,其形成年龄为 136.6 Ma,碱长花岗斑岩侵入并破坏了含矿石英二长斑岩的岩石和矿体特征,其形成年龄为 129.8 Ma,研究区斑岩型钼矿床的成矿年龄为129.8～136.6 Ma.流体包裹体研究表明:包裹体以富液两相水溶液包裹体为主,均一温度范围为244.7～388.1℃,盐度为0.33%～4.55%,流体密度为 0.48～0.83 g/cm3,均一压力为 3.2～24 MPa,含矿石英脉为D脉,形成于石英二长斑岩岩浆活动晚期.
Abstract
Hexi village molybdenum deposit is a porphyry molybdenum deposit newly discovered in recent years.The ore body occurs in quartz monzonite porphyry bodies.Its formation age is 136.6 Ma.The alkali feldspar granite porphyry invaded and destroyed the rock and ore body characteristics of the ore-bearing quartz monzonite porphyry,and its formation age is 129.8 Ma.The mineralization age of the porphyry molybdenum deposit in the study area ranges from 129.8 to 136.6 Ma.The mineralization age of the porphyry molybdenum deposit in the study area ranges from 129.8 to 136.6 Ma.Fluid inclusion studies show that the inclusions are mainly liquid-rich two-phase aqueous solu-tion inclusions.The homogenization temperature ranges from 244.7 to 388.1℃,the salinity ranges from 0.33%to 4.55%,the fluid density ranges from 0.48～0.83 g/cm3,and the homogenization transient pressure ranges from 3.2～24 MPa.The ore-bearing quartz vein is D vein.It was formed in the late stage of quartz monzonite porphyry magmatism.
基金项目
河北省自然资源厅项目(4540502YBNY55A)
河北省自然资源厅项目(13000022P00F2D4101241)
河北省自然资源厅项目(13000024P00F2D410465W)
河北省自然资源厅项目(13000022P00F2D410122R)
国家科技期刊平台
NSTL
维普
万方数据