| 陕西柞水银硐子银铅矿床成矿物理化学条件研究 |
| |
| 摘 要： | 在地质-地球化学研究的基础上,本文运用热力学原理研究成矿作用的物理化学条件。通过矿物包裹位测温、测盐度研究,应用闪锌矿压力计,运用热力学计算,获得两个成矿阶段的成矿温度、成矿压力、成矿的pH、Eh,以及硫逸度和氧逸度,成矿溶液的盐度。认为导致成矿金属元素沉淀富集成矿的因素是含矿流体加入了还原硫及pH的升高,成矿过程总体是在比较还原的条件下进行的。
|
| 关 键 词： | 层控矿床 Ag—Pb矿床 成矿物理化学条件 矿物包裹体 热力学计算 Eh pH |
THE STUDY OF PHYSICO-CHEMICAl CONDITIONS OF MINERALIZATION OF Ag-Pb ORE DEPOSIT IN YINDONGZI, SHAANXI PROVINCE |
| |
| Authors: | Chen Dexing Zhou Leyao Li Fanglin |
| |
| Institution: | Wuhan Ceollege of Geology Wuhan 430074 |
| |
| Abstract: | By use of thermodynamics and fluid inclusions the physico-chemical conditions of mineralization have been studied in this paper. Based on the physicochemical conditions (temperature, pressure, pH value Eh value, sulfur fugacity, oxygen fugacity and salinity) obtained, the authors present that the mineralization is controlled by two major factors: the addition of reducing sulfur and the increase of pH value. It is suggested that the mineralization took place in a reducing environment. |
| |
| Keywords: | strata-bound ore deposit Ag-Pb ore deposit physico-che-mical conditions of mineralization study of fluid thermodynamics calculation pH value Eh value |
| 本文献已被 CNKI 等数据库收录！ |
|
