甘肃南泉银金矿地球化学异常特征及找矿标志  

The characteristics of geochemical abnormities and the symbols for prospecting in Nanquan gold-silver deposit

作　　者：林森[1] 李杰[1] 东建星[1] 张权[1] 

机构地区：[1]甘肃有色地质勘查局四队,甘肃张掖734012

出　　处：《桂林工学院学报》2002年第3期349-353,共5页Journal of Guilin University of Technology

基　　金：国土资源部国土资源大调查项目 (2 0 0 10 2 0 0 15 11)

摘　　要：探讨了南泉银金矿地球化学异常与成矿的关系 ,Au ,Ag异常为矿致异常 ,Au具岩浆热液深部来源特点 ,Ag来源既为岩石同沉积矿化 ,又有后期岩浆热液外来物质的多次加入 ,其成矿规模远远大于Au的成矿规模 ,碳酸盐岩对Au,Ag成矿有选择性 ,矿床具层控特征 .The research is a preliminary analysis about the relationship betwee geochemical abnormities and mineralization.Au and Ag abnormities are brought by mineralization, the resource of Au is from deep magma, and the resource of Ag is from the mineralization which is formed at the same time with the rock sediment.Moreover, with the repetitious addition of mineralizing materials of subsequent magma, the scale of Ag mineralization is larger than the scale of Au mineralization. Carbonate rocks are selective to Au and Ag mineralization. And the deposit has characteristics of stratum_controlling. The characteristics of geochemical abnormities and the symbols for prospecting in Nanquan gold_silver deposit are concluded.

关 键 词：银金矿床 地球化学异常 找矿标志 甘肃 成矿作用 碳酸盐岩 

分 类 号：P618.52[天文地球—矿床学] P618.51[天文地球—地质学]