云南金宝山铂钯矿Pd赋存状态的补充研究  

AN ADDITIONAL STUDY ON THE Pd-OCCURRENCE STATES IN THE JINBAOSHAN Pt-Pd DEPOSIT

作　　者：陶琰[1] 朱丹[1] 高振敏[1] 罗泰义[1] 姚林波[1] 张欢[1] 

机构地区：[1]中国科学院地球化学研究所矿床地球化学国家重点实验室,贵州贵阳550002

出　　处：《矿物学报》2007年第3期262-264,共3页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目(批准号:4057302040572054);中国科学院重要方向项目(KZCX3-SW-125)

摘　　要：金宝山铂钯矿是峨眉山大火成岩省已知最大的铂族元素矿床，矿化产出在金宝山岩体超镁铁岩相中，矿石含浸染状硫化物。对矿石样品中硫化物进行电子探针分析发现镍黄铁矿及针镍矿中含有较高的钯，含量分别达到500×10^-6～1700×10^-6和1100×10^-6～1900×10^-6。结合全岩分析结果进行质量平衡计算，表明其矿石中钯主要以非独立矿物形式赋存在镍黄铁矿和针镍矿中。The Jinbaoshan Pt-Pd deposit is the biggest PGE deposit found in the Erneishan Large Igneous Province. The mineralization is associated with several disseminated sulfide layers within the wehrlite unit. In terms of the eleetmn microprobe analysis, the compositions of sulfide minerals were determined. The two nickel sulfide minerals, pentlandite and millerite, contain trace amounts of Pd. The concentrations of Pd in pentlandite and millerite vary between 500 and 1700 ppm, and between 1100 and 1900 ppm, respectively. Mass balance calculations in terms of mineral compositions and whole-rock analyses indicate that pentlandite and millerite are the major hosts of Pd in the samples.

关 键 词：PGE矿床 赋存状态 云南 金宝山 

分 类 号：P618.51[天文地球—矿床学]