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 | |
刊名 | Chemical Geology |
2019 | |
卷号 | 517页码:7-21 |
关键词 | Nanometer-size Pge-arsenides And Sulfarsenides semimetal Elements pt-as Molecular pge Distribution |
英文摘要 | 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. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.gyig.ac.cn/handle/42920512-1/10864] |
专题 | 地球化学研究所_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.German Research Centre for Geosciences GFZ, 3.5 Surface Geochemistry, Telegrafenberg, Potsdam, Germany 3.University of Chinese Academy of Sciences, Beijing 100039, China |
推荐引用方式 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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