The greenish color of the palaeo-oxidized sandstones mainly results from chloritization and epidotization related to oil and gas secondary reduction processes. 古氧化绿色砂岩主要由与油-气二次还原作用有关的绿泥石化和绿帘石化造成。
The main types of the wall rock alteration include quartzitification, sericitization, chloritization, pyritization, limonitization, kaolinitization, carbonatization. 主要蚀变类型有硅化、绢云母化、绿泥石化、黄铁矿化、褐铁矿化、高岭土化和碳酸盐化等。
Wall rock alteration is strong and dominated by phyllic alteration, silicification and chloritization then carbonation that is generally related closely to Pb, Zn mineralization. 矿床围岩蚀变强烈,以绢英岩化、硅化、绿泥石化为主,次为碳酸盐化,并与铅锌矿化关系密切;
Hydrothermal alterations in granitic rocks include carbonatization, chloritization, greisenization, sericitization and albitization. 个旧矿区的热液活动及热液蚀变作用很突出,花岗岩中的热液蚀变有:碳酸盐化、绿泥石化、云英岩化、绢云母化、钠长石化。
The original ore minerals are mainly pyrite, chalcopyrite, magnetite, etc, the alteration in the wall rocks is developed, such as peacock petrochemical, epidotization, chloritization and little silicification, carbonatization. 矿石的原生矿物主要是黄铁矿、黄铜矿、磁铁矿等,围岩蚀变较为强烈,以孔雀石化、绿帘石化、绿泥石化为主,少量的硅化和碳酸盐化。
Wall-rock alteration includes chloritization, sericitization, and carbonatization ( calcite, siderite). 围岩蚀变主要是绿泥石化、绢云母化、硅化以及碳酸盐(方解石、菱铁矿)化等。