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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
发表期刊Chemical Geology
卷号517页码:7-21
摘要

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 NieCu-(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 PGEarsenides and sulfarsenides. Thus, semimetal elements, particularly As, play an important role on behaviour of PGE during solidification of magmatic sulfide liquids.

关键词Nanometer-size Pge-arsenides And Sulfarsenides semimetal Elements pt-as Molecular pge Distribution
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/10864
专题矿床地球化学国家重点实验室
作者单位1.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
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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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