Re-Os isotopic constraints on the ore-forming mechanism for the Qingkuangshan Ni-Cu-PGE deposit in the Huili County, Sichuan Province
四川省会理县青矿山Ni-Cu-PGE矿床成因机制的Re-Os同位素证据

The Qingkuangshan Ni-Cu-PGE deposit,located in the Xiaoguanhe area of Huili County,Sichuan Province,is one of the typical Ni-Cu-PGE deposits in the Emeishan Large Igneous Province(ELIP).In this paper,the Re and Os concentrations and Os isotopic compositions of the sulfide ores and associated ultramafic rocks in the Qingkuangshan deposit are studied in detail.The analyses indicate that the sulfide ores and associated ultramafic rocks can be divided into three types on the base of their Os compositions.Olivin...