摘要
对江西相山铀矿田沙洲矿床方解石、石英和萤石流体包裹体的研究发现,流体包裹体均一温度主要在200~210℃和230~260℃两个区间内,盐度w(NaCl)分别为11.00%~12.00%和18.00%~20.00%,平均密度为0.94g/cm3,成矿压力为168.4×105~433.0×105Pa,平均值为283.8×105Pa。由压力与深度的关系估算成矿深度值为0.561~1.443km,平均值为0.946km;结合流体包裹体成分和稳定同位素等分析,得出成矿流体主要来自大气水,并且有岩浆水以及地幔热液的参与。
Study of fluid inclusions in calcite,quartz and fluorite in the Shazhou deposit,Xiangshan uranium orefield,Jiangxi,indicates that:: the homogenization temperatures of ore fluids ranged from 200 to 210 ℃ and from 230 to 260 ℃;the salinities ranged from 11.01 to 12.00% wt.% NaCl equivalent and from 18.01 to 20.00% wt.% NaCl equivalent;the average density was 0.94 g/cm^3;the ore-forming pressures ranged from 168.4×10~5 to 433.0×10~5 Pa with an average of 283.8×10~5 Pa.The ore-forming depths estimated based on ...
出处
《地质力学学报》
CSCD
2008年第2期176-185,共10页
Journal of Geomechanics
基金
中国地质调查局全国危机矿山接替资源找矿项目(编号:200799094
200436009)
关键词
相山铀矿田
沙洲矿床
流体包裹体
均一温度
稳定同位素
Xiangshan uranium orefield
Shazhou deposit
fluid inclusion
homogenization temperature
stable isotope
