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Implications of nano- and micrometer-size platinum-group element minerals in base metal sulfides of the Yangliuping Ni-Cu-PGE sulfide deposit, SW China,
Qing-Lin Liang;  Xie-Yan Song;  Richard Wirth;  Lie-Meng Chen;  Zhi-Hui Dai
2019
Source PublicationChemical Geology
Volume517Pages:7-21
Abstract

The concentrations of platinum-group elements (PGE) and semimetal elements (As, Sb, Se, Te and Bi) in the base metal sulfides from the Yangliuping deposit were determined using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS). Mass balance calculation reveals that the base metal sulfides only contain <40 wt% Os, <15 wt% Ir, <25 wt% Pd and negligible Pt, Rh and As, as solid solution. Such PGE percentages in the base-metal sulfides as solid solution are evidently lower than in the sulfides from the Jinchuan, Noril'sk and Sudbury Nisingle bondCu-(PGE) sulfide deposits. Euhedral shape and similar chemical composition of the nanometer-size PGE-arsenides and sulfarsenides in the base-metal sulfides suggest that they crystallized from the sulfide melt before the crystallization of monosulfide solid solution (MSS) and intermediate solid solution (ISS). It is proposed that the nanometer-size PGE-arsenides and sulfarsenides formed from PGE-As molecular or polymolecular clusters in the sulfide liquid at high temperature. The PGE-As molecular or polymolecular clusters prevent As and PGE from partitioning into the base metal sulfide lattice and tend to form discrete nanometer-size PGE-arsenides and sulfarsenides. Thus, semimetal elements, particularly As, play an important role on behaviour of PGE during solidification of magmatic sulfide liquids.

KeywordNanometer-size Pge-arsenides And Sulfarsenides semimetal Elements pt-as Molecular pge Distribution
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10499
Collection矿床地球化学国家重点实验室
Affiliation1.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, PR China
2.University of Chinese Academy of Sciences, Beijing 100039, China
3.German Research Centre for Geosciences GFZ, 3.5 Surface Geochemistry, Telegrafenberg, Potsdam, Germany
Recommended Citation
GB/T 7714
Qing-Lin Liang;Xie-Yan Song;Richard Wirth;Lie-Meng Chen;Zhi-Hui Dai. Implications of nano- and micrometer-size platinum-group element minerals in base metal sulfides of the Yangliuping Ni-Cu-PGE sulfide deposit, SW China,[J]. Chemical Geology,2019,517:7-21.
APA Qing-Lin Liang;Xie-Yan Song;Richard Wirth;Lie-Meng Chen;Zhi-Hui Dai.(2019).Implications of nano- and micrometer-size platinum-group element minerals in base metal sulfides of the Yangliuping Ni-Cu-PGE sulfide deposit, SW China,.Chemical Geology,517,7-21.
MLA Qing-Lin Liang;Xie-Yan Song;Richard Wirth;Lie-Meng Chen;Zhi-Hui Dai."Implications of nano- and micrometer-size platinum-group element minerals in base metal sulfides of the Yangliuping Ni-Cu-PGE sulfide deposit, SW China,".Chemical Geology 517(2019):7-21.
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