摘要
本文从化学成分和物理性质对与锡多金属矿床有关的铁闪锌矿进行研究,得出其富Fe、In、Sn、As、Se;贫Cd、Tl、Te;Ga/In<<1,比磁化系数、反射率、晶胞棱长均较高,比重和维克硬度较低。表明本区的锡多金属矿床与岩浆热液有密切关系。矿床的矿化温度为284.5℃,硫逸度为10^(-12)巴。
The major mineral assemblage of Tongkeng-Changpo Tin-polymetallic deposit is cassiterite, marmatite, hexagonal pyrrhotite, monoclinic pyrrhotite, pyrite, arsenopyrite, sulfosalts, calcite and quartz.
In this paper, marmatite is thoroughly investigated in terms of chamical composition and physical properties.The marmatite studied is rich in Fe, In, Sn,As, Se and poor in Cd, Tl, Te; Ga/In<<1.Specific magnetic coefficient, reflectivity and unit cell parameter a_0 are higher than the average. S. G, and Vickers hardness are lower than the average. Tin-polymetallic ores are closely related to magmatic hydrothermal activities.
According to the assemblage of marmatite, hexagonal pyrrhotite and pyrite, the mineralization temperature and sulfur fugacity are calculated as 284.5℃ and 10^(-12.0) bar, respectively.
出处
《矿物岩石》
CAS
CSCD
1989年第2期65-72,共8页
Mineralogy and Petrology
