摘要
文章报道了八卦庙特大型金矿床中伴生的铂族金属矿化的地质特征、岩石矿物学特征和新发现矿物——自然 (钨 )钌矿的基本矿物学特征。铂族金属矿化与金矿化及围岩蚀变的关系研究表明 ,八卦庙金矿中伴生的铂族金属富集于后期岩浆热液改造期 ,成矿物质主要来源于后期改造的热液 ;铂族金属的富集与金的富集呈明显的正消长关系 ;成矿的温度为 140～ 5 0 0℃ ,矿化深度>3.7km,成矿流体是以中酸性岩浆热液为主的多成因热卤水 ;矿物组成以复杂的高温硫化物、合金类为主要特征 ;化学成分也比较复杂 ,以 Au,Cu,As,Ag,Ni,Co,Sb,S和铂族金属 Ru,Ir,Os异常等为特点。
On systematic works, this paper reports geology, petrology,mineralogy and characteristics of the newly found W Ru mineral.Research on the mineralization and wall rock alteration reveal that PGE were concentrated in the late thermal fluid stage and the concentration is correlated with gold.The ore was formed at 140 500℃ and depth>3.7km. The deposit is characterized by complex both in chemistry and mineralogy.Au,Cu,As,Ag,Ni,Co,Sb,S and PGE in Ru,Ir and Os show anomaly. This type gold deposit provides a probe for PGE in Qinlin tectonic belt.
出处
《地质找矿论丛》
CAS
CSCD
2001年第1期12-18,共7页
Contributions to Geology and Mineral Resources Research
基金
中国有色金属总局西北有色地质勘查局科研项目! (93 -63 -陕 2 )
原国家黄金局科研项目
