摘要
本文系统研究了独山半坡锑矿床的流体包裹体和稳定同位素地球化学,结果表示,成矿流体温度为120~165℃,压力为608×107Pa,lgfO2为-4623~-5007,pH值为442~712,属低盐度,弱酸、还原型成矿流体,硫来源于海水硫酸盐的细菌还原,碳来源于围岩。
The study of Geochemistry of fluid inclusions and stable isotope from the Banpo Antimong Deposit indicated that the temperatures of ore forming fluids ranges from 120℃ to 165℃,the pressure is 6 08×10 7Pa,logf O 2 is -46 23~-50 07,and pH ranges from 4 42 to 7 12.The fluids contain low salinities with weakly acid and reducing solutions.Sulfur stems from the Germ reducing of Seawater sulfates,carbon comes from the country rocks,and the origins of the ore forming fluids were from meteoric water which had been exchanged in hgdrogent and oxygen isotopes with the country rocks.
出处
《昆明理工大学学报(理工版)》
1999年第1期73-79,共7页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
流体包裹体
成矿流体
锑矿床
地球化学
banpo antimony deposit
fluid inclusions
stable isotope
ore forming fluid.