Advances in research of sulphide ore textures and their implications for ore genesis  

作　　者：GU Lianxing ZHENG Yuanchuan TANG Xiaoqian WU Changzhi HU Wenxuan 

机构地区：[1]State Key Laboratory for Endogenic Metal Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China

出　　处：《Progress in Natural Science:Materials International》2006年第10期1007-1021,共15页自然科学进展·国际材料（英文版）

基　　金：Supported by National Natural Science Foundation of China (Grant Nos. 40472042, 40234051, 40221301 and 40172034)

摘　　要：Important advances in research of sulphide ore textures in recent years have deepened our understanding of ore genesis of related mineral deposits. Pressure solution of sulphide minerals has been suggested as a mechanism for remobilization of ore materials, whereas pressure solution of the gangues is believed to raise the grade of the primary ores. We have known that precipitation of base metal sulphldes from fluids prefers crystal and crack surfaces of pyrite to form overgrowth. Therefore, pyrite-bearing embryo beds in a sedimentary sequence can be acted as effective crystal seed beds and are favorable for fluid overprinting to form huge statabound deposits. Texture studies of various sulphides can be used to interpret the entire history of sedimentation, diagenesis, deformation and metamorphism of the ores. The study of chalcopyrite disease in sphalerite has brought about the idea of zone refining, and given a new explanation to metal zonation in massive sulphide deposits. Ductile shearing of sulphide ores may form ore mylonites, which will become oreshoots enriched in Cu, Au and Ag during late-stage fluid overprinting. Despite that various modern analytical techniques are being rapidly developed, ore microscopy remains to be an unreplaceable tool for ore geologists. Combined with these modern techniques, this tool will help accelerate the development of theories on ore genesis.在硫醚矿石质地在的研究的重要进展恨年加深了我们相关矿藏的矿石开始的理解。硫醚矿物质的压力答案为矿石材料的动员作为机制被建议了，而脉石的压力答案被相信提起主要矿石的等级。我们知道了从液体的贱金属硫醚的降水比较喜欢水晶和黄铁矿的裂缝表面形成增生。因此，在一个沉积序列的忍受黄铁矿的胚胎床能作为有效水晶种子床被扮演并且为套印形成巨大的 statabound 沉积物的液体是赞成的。各种各样的硫醚的质地研究能被用来解释矿石的沉积，成岩作用，变丑和变态的全部历史。在闪锌矿的黄铜矿疾病的学习引起了地区精制的想法，并且在巨大的硫醚沉积物把新解释给金属带状配列。硫醚矿石的可锻的砍可以形成矿石糜棱岩，它将成为在套印的迟了阶段的液体期间在 Cu， Au 和 Ag 充实的矿石射击。尽管有那，各种各样的现代分析技术很快正在被开发，是为矿石地质学家的一个 unreplaceable 工具的矿石显微镜学遗体。与这些现代技术结合了，这个工具将帮助在矿石开始上加速理论的发展。

关 键 词：PYRITE PYRRHOTITE CHALCOPYRITE pressure sulution OVERGROWTH mylonite. 

分 类 号：P618.2[天文地球—矿床学]