Platinum-group Elements Geochemistry of the Yangliuping Magmatic Ni-Cu-PGE Sulfide Deposit:Implications of Its Genetic Link with the Extrusive Basalts  

作　　者：ZHENGJianbin CAOZhimin SONGXieyan ANWei1 LIUJi 

机构地区：[1]CollegeofMarineGeosciences,OceanUniversityofChina,Qingdao266003,P.R.China [2]DepartmentofEarthSciences,UniversityofHongKong,PokfulamRoad,HongKong,P.R.China

出　　处：《Journal of Ocean University of China》2004年第1期93-98,共6页中国海洋大学学报（英文版）

基　　金：supported by NSFC(Grant Nos.40072037,40273025);NKBRSF Project(Grant No.G1999043200)

摘　　要：Primitive mantle normalized Platinum group elements (PGE) concentration patterns for the Zhengziyanwo intrusion and Dashibao Formation basalts are of positive slope, similar to most of the world class magmatic Ni Cu PGE sulfide deposits. Characters of this intrusion and its related ores and Dashibao Formation basalts are their negative Pt anomaly and high concentration of Rh relative to Pt and Pd, facts being interpreted to be the results of crystallization and fractionation of Pt alloys and spinel phase free crystallization history for the magma, respectively. PGE parameters of the Dashibao Formation basalts are consistent with the general trend of those found for the Zhengziyanwo intrusion, and this might infer a genetic link between them.Primitive mantle normalized Platinum group elements (PGE) concentration patterns for the Zhengziyanwo intrusion and Dashibao Formation basalts are of positive slope, similar to most of the world class magmatic Ni Cu PGE sulfide deposits. Characters of this intrusion and its related ores and Dashibao Formation basalts are their negative Pt anomaly and high concentration of Rh relative to Pt and Pd, facts being interpreted to be the results of crystallization and fractionation of Pt alloys and spinel phase free crystallization history for the magma, respectively. PGE parameters of the Dashibao Formation basalts are consistent with the general trend of those found for the Zhengziyanwo intrusion, and this might infer a genetic link between them.

关 键 词：Magmatic Ni-Cu-PGE sulfide deposit PGE concentration pattern Pt-anomaly Yangliuping BASALT 

分 类 号：P618.63[天文地球—矿床学] P618.41[天文地球—地质学]