摘要
独立的内生金矿床,形成于中-低温热液期,伴随中-低温的围岩蚀变.以三个不同时代,不同岩层的断裂中金矿围岩蚀变,指出金矿的富集与围岩蚀变的关系,通过对全国独立内生金矿围岩蚀变的调查和统计,得知有27种蚀变类型,与金矿成矿关系最密切为硅化、黄铁矿化、绢云母化、碳酸盐化和绿泥石化等五种.其次为钾长石化、青磐岩化、高岭土化、白云母化和钠长石化.其余17种与金矿成矿关系较少.凡是发育于断裂构造中的上述热液蚀变,是找内生金矿的有效标志.
Endogenic gold deposts are formed in the period of intermediate - low hydrothermal fluid activity and associated with intermediate - low hydrothermal alteration. This paper presents statisitc results of 30 endogenic gold deposits and the study of three examples which are located in fractures with differet country rock. 27 alterations are summarized to relate to gold deposits. Silicification, pyritization, serictitzation, carbonitization, and chloritization are closely associated with gold mineralization. The next is microclinization, propylitization, kaolinization, muscovitization and albitization. The others have less relation to gold ore. So the 27 alterations in fractural zones are marks for gold exploration.
出处
《地质找矿论丛》
CAS
CSCD
1990年第3期63-70,共8页
Contributions to Geology and Mineral Resources Research
