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报道了位于西准噶尔南部包古图地区Ⅲ-2号岩体东部边界的锑矿化.研究表明:锑矿化过程可划分为3个阶段:早期自然锑阶段,产出自然锑和磁黄铁矿的共生组合;中期硫锑铁矿阶段,硫锑铁矿与磁黄铁矿、黄铁矿和毒砂共生产出;晚期辉锑矿阶段,辉锑矿大量结晶,交代早期阶段自然锑和磁黄铁矿.矿物成分和相分析表明,早期阶段氧逸度的降低是导致自然锑沉淀的主要因素,晚期阶段温度降低导致辉锑矿大量沉淀.体系的硫逸度为-8~-13,从早期到晚期阶段,硫逸度明显上升.锑矿化的发现及研究补充完善了西准噶尔地区的矿产类型,具有理论意义及实践价值.
Reported the antimony mineralization at the eastern boundary of the No.3-2 rock mass in the Bao kutu area, southern part of western Junggar.The results show that the antimony mineralization process can be divided into three stages: the early natural antimony phase, which produces natural antimony and magnetite Mine symbiotic combination; intermediate antimony antimony phase, antimony pyrite and pyrrhotite, pyrite and arsenic co-production; late stibnite stage, a large number of stibnite crystallization, account of the early stages of natural antimony and Pyrrhotite.The mineral composition and phase analysis show that the decrease of oxygen fugacity in early stage is the main factor leading to the precipitation of natural antimony.The temperature decrease in the late stage leads to the precipitation of stibnite in large amount.The sulfur fugacity of the system is -8 ~ -13 , From early to late stage, the sulfur fugacity increases obviously.The discovery and research of antimony mineralization complements and perfects the mineral types in West Junggar region, which has both theoretical significance and practical value.