Zn release from fluid inclusions in a natural sphalerite
来源期刊：International Journal of Minerals Metallurgy and Materials2013年第5期
论文作者：Shu-ming Wen Jian Liu Bo Li Run-sheng Han Yi Zhang Jiu-shuai Deng
文章页码：420 - 426
摘 要：The type, size, and compositions of fluid inclusions in a natural sphalerite were investigated and the total concentration of Zn released from the fluid inclusions was measured. To compare the total concentration of Zn released from the fluid inclusions with that dissolved from the sphalerite itself, dissolution experiments and theoretical calculations for the dissolution equilibrium of the sphalerite were also performed. The results indicate that large numbers of fluid inclusions with various sizes exist in the sphalerite, which can be divided into four types, i.e., pure gaseous inclusions, pure liquid inclusions, gas-liquid inclusions, and gas-liquid inclusions containing solid minerals. These inclusions were broken open during the grinding process, and their compositions were released to the solution. The total concentration of Zn released from these inclusions reaches 18.35×106mol/L, which is much higher than that of Zn dissolved from the sphalerite itself （1.93×106mol/L） and the theoretical calculation value （2.73×108mol/L）.
Shu-ming Wen1，Jian Liu1，Bo Li2，Run-sheng Han2，Yi Zhang1，Jiu-shuai Deng1
1. Faculty of Land Resource Engineering,Kunming University of Science and Technology2. Southwest Institute of Geological Survey Center for Non-ferrous Mineral Resources,Kunming University of Science and Technology
摘 要：The type, size, and compositions of fluid inclusions in a natural sphalerite were investigated and the total concentration of Zn released from the fluid inclusions was measured. To compare the total concentration of Zn released from the fluid inclusions with that dissolved from the sphalerite itself, dissolution experiments and theoretical calculations for the dissolution equilibrium of the sphalerite were also performed. The results indicate that large numbers of fluid inclusions with various sizes exist in the sphalerite, which can be divided into four types, i.e., pure gaseous inclusions, pure liquid inclusions, gas-liquid inclusions, and gas-liquid inclusions containing solid minerals. These inclusions were broken open during the grinding process, and their compositions were released to the solution. The total concentration of Zn released from these inclusions reaches 18.35×106mol/L, which is much higher than that of Zn dissolved from the sphalerite itself （1.93×106mol/L） and the theoretical calculation value （2.73×108mol/L）.
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