Cao Jian-jin, Jiang Zong-tao, Xiong Zhi-hua, Yang Yan-na, Chen Shi-yue
Department of Earth Sciences, Sun Yat-sen University, Guangzhou 510275, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Apr;29(4):956-9.
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 S(2-) in sulfide minerals is oxidized and transformed into S(6+) 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.
前人着重研究了断层活动中矿体的矿化作用及矿体在空间中的移动。而对于断层活动中由硫化物矿石和围岩形成的颗粒的研究一直被忽视。本文利用傅里叶变换红外光谱（FTIR）和扫描电子显微镜对硫化物矿床的断层颗粒进行了研究。结果表明，样品由水合硫酸钙、水合硫碳酸钙、石英、绢云母和有机质组成。这表明在断层活动中硫化物矿物中的S(2-)被氧化并转化为S(6+)。硫化物矿物形成了水合硫酸钙，硫化物矿物和碳酸盐矿物形成了水合硫碳酸钙。水合硫碳酸钙是我们研究中新发现的一种矿物。研究结果不仅可应用于该矿床类型的找矿和勘探，对矿石利用也具有重要意义。此外，本文讨论了水合硫酸钙和水合硫碳酸钙的红外光谱鉴别特征，并指出红外光谱分析适用于分析断层活动中形成的水合硫酸钙和水合硫碳酸钙颗粒。
