黑龙江金厂金矿地质地球化学特征及矿床成因

金厂金矿金矿化分为构造蚀变岩裂隙充填型、隐爆角砾岩型。金矿石分角砾岩型、蚀变岩型、硫化物－石英脉型３类。蚀变类型主要有硅化，绢云母化、钾化、黄铁矿化。成矿作用分为早、中、晚期。找金的最佳指示元素组合为Ａｕ－Ａｓ－Ｂｉ－Ｍｏ－Ｃｏ－Ｎｉ。不同类型矿体Ｈ－Ｏ同位素组成相对稳定，总体属岩浆水范围。综合矿区地质地球化学特征研究认为，金厂金矿属于与中生代岩浆活动有密切关系的浅成中高温岩浆期后热液矿床。

The geological-geochemical characteristics and ore genesis of Jinchang gold deposit in Heilongjiang

Gold mineralization in Jinchang gold deposit is divided into fracture alteration type, fissure filling type and cryptoexplosion breccia type. The gold ore are divided into breccia, alteration and quartz sulfide vein types. The alteration are mainly silicification, sericitization, k feldspathization and pyritization. The mineralization is divided into early, middle and late stages. The best indicator elements combination for gold prospecting is Au As Bi Mo Co Ni. In different types of orebodies, H O isotope compositions are relatively stable, generally belong to magmatic water. Synthetizing the study of geological, geochemical characteristics in the mining area, it is considered that Jinchang gold deposit is a postmagmatic xenothermal deposit closely related to Mesozoic magmatic activity.