【摘要】 前人的研究着重于断层活动对矿体空间位置的改造或成矿方面,忽视了硫化物矿石及其围岩在断层活动过程中形成微粒的研究。文章采用傅里叶变换红外光谱和扫描电镜分析硫化物矿床断层微粒,结果表明,样品主要由含水硫酸钙、含水硫碳酸钙、石英、绢云母和有机质组成。其中含水硫碳酸钙是新发现的矿物。这反映在断层活动过程中,硫化物矿物中的S2-发生了氧化转变为S6+,形成含水硫酸钙,或者含水硫碳酸钙矿物。研究结果不仅可应用于该类型矿床找矿勘探,而且对于矿石利用等方面也是有意义的。另外,文章还讨论了含水硫酸钙、含水硫碳酸钙的红外光谱鉴定特征,提出红外光谱分析技术十分适合断层活动形成的含水硫酸钙和含水硫碳酸钙微粒的分析。更多还原

【Abstract】 Predecessors researched emphatically the mineralization and the movement of ore body in space in fault movement. Study on particles that were formed from sulfide ore and wall rock in fault movement has been always ignored. The present paper studies the fault particles of the sulfide deposit using the FTIR spectroscopic spectra and scanning electron microscope. The results show that the samples consist of hydrous calcium sulphate,hydrous sulfur calcium carbonate,quartz,sericite,and organic matter. This shows that S2-in sulfide minerals is oxidized and transformed into S6+ in fault movement. Sulfide minerals formed hydrous calcium sulphate and sulfide minerals and carbonate minerals formed hydrous sulfur calcium carbonate. Hydrous sulfur calcium carbonate is a mineral newly discovered in our study. The research results not only can be applied in the prospect and the exploration of this ore deposit type but also is important for ore utilization. In addition,this paper discussed identification characteristics of infrared spectrum of hydrous calcium sulphate and hydrous sulfur calcium carbonate and pointed out that infrared spectral analysis is suitable for analysis of hydrous calcium sulphate and hydrous sulfur calcium carbonate particles formed in fault movement.更多还原