Xian, Haiyang1,2; He, Hongping1,2,3; Zhu, Jianxi1,2; Qiu, Kunfeng4; Li, Yang5; Yang, Yiping1,2; Xing, Jieqi1,2,3; Tan, Wei1,2; Tsuchiyama, Akira1,2,6; Yastake, Masahiro7; Enju, Satomi8; Miyake, Akira9; Zhu, Runliang1,2
Hyperenrichment of gold in pyrite induced by solid-state transportation
刊名COMMUNICATIONS EARTH & ENVIRONMENT
2022-12-05
卷号3期号:1页码:6
DOI10.1038/s43247-022-00628-x
语种英语
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
摘要The hyperenrichment of gold is critical for the formation of high-grade gold deposits in orogenic systems, where gold enrichment can reach several percent. However, many details on the nature of the hyperenrichment mechanism remain unclear. Here we show a "self-purification " model that could explain the hyperenrichment of gold from nanoparticles to veinlets in deformed pyrite. The three-dimensional spatial relationship and coexistence of gold nanoparticles and veinlets indicate a direct transformation from the former to the latter in solid-state. Theoretical evaluation reveals that this transformation involves a thermodynamically favorable self-purification process. We thus propose that deformation/thermo drives the transport of gold nanoparticles towards veinlets in pyrite through atomic diffusion. This deformation/thermo-driven model is applicable to any deformed nano-gold-bearing pyrite and explains how solid-state transport can effectively concentrate gold to a very high grade. Similar mechanisms may have broad implications in both ore-forming and beneficiation processes.
WOS记录号WOS:000894466400003
收录类别SCI
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.gig.ac.cn/handle/344008/69892
专题中国科学院矿物学与成矿学重点实验室
通讯作者He, Hongping
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China
2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Univ Geosci, Sch Earth Sci & Resources, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
6.Ritsumeikan Univ, Res Org Sci & Technol, Kusatsu, Shiga 5258577, Japan
7.Japan Synchrotron Radiat Res Inst, Hyogo 6795198, Japan
8.Ehime Univ, Grad Sch Sci & Engn, Dept Math, Phys, Matsuyama, Ehime 7908577, Japan
9.Kyoto Univ, Grad Sch Sci, Dept Earth & Planetary Sci, Sakyo Ku, Kyoto 6068502, Japan
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GB/T 7714
Xian, Haiyang,He, Hongping,Zhu, Jianxi,et al. Hyperenrichment of gold in pyrite induced by solid-state transportation[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2022,3(1):6.
APA Xian, Haiyang.,He, Hongping.,Zhu, Jianxi.,Qiu, Kunfeng.,Li, Yang.,...&Zhu, Runliang.(2022).Hyperenrichment of gold in pyrite induced by solid-state transportation.COMMUNICATIONS EARTH & ENVIRONMENT,3(1),6.
MLA Xian, Haiyang,et al."Hyperenrichment of gold in pyrite induced by solid-state transportation".COMMUNICATIONS EARTH & ENVIRONMENT 3.1(2022):6.
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