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Textures and trace element signatures of pyrite and arsenopyrite from the Gutaishan Au–Sb deposit, South China

Published on Apr 1, 2019in Mineralium Deposita 3.37
· DOI :10.1007/s00126-018-0826-0
Wei Li4
Estimated H-index: 4
(China University of Geosciences),
Nigel J. Cook32
Estimated H-index: 32
(University of Adelaide)
+ 4 AuthorsZhiyuan Zhang3
Estimated H-index: 3
Abstract
The Gutaishan deposit is a slate-hosted lode Au–Sb deposit in the Xiangzhong Sb–Au metallogenic province, South China. The deposit has a proven reserve of ca. 9 -t gold at an average grade of 13-g/t and contains 2500-t Sb. The deposit represents the product of a complex ore-forming process, comprising four different stages, of which the third stage is the main gold–stibnite bearing stage. Scanning electron microscopy, electron probe microanalysis, and laser ablation inductively coupled plasma-mass spectrometry were used to investigate the occurrence of visible gold and the distribution of invisible gold in pyrite and arsenopyrite. Visible gold displays textural complexity with four distinct categories defined and assumed to have formed directly precipitated from ore-forming fluid and remobilized from pyrite and arsenopyrite. Pyrite and arsenopyrite occur as ten and four texturally distinct subtypes; all host invisible gold, which is lattice-bound. Trace element mapping of selected pyrite and arsenopyrite grains reveals a marked compositional zoning with respect to Au and other elements in both minerals. Observed decoupled behavior between Au and As in some grains contradicts the paradigm of coupled Au and As substitution. Evidence suggests that the Gutaishan deposit likely represents an evolving Au–Sb mineralization event recorded by the complex texture and geochemical signatures of visible gold, sulfides, and sulfosalts.
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  • Citations (3)
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References54
Newest
Published on Apr 1, 2017in Journal of Asian Earth Sciences 2.87
Ruizhong Hu36
Estimated H-index: 36
(CAS: Chinese Academy of Sciences),
Wei Terry Chen17
Estimated H-index: 17
(CAS: Chinese Academy of Sciences)
+ 1 AuthorsMei-Fu Zhou69
Estimated H-index: 69
(HKU: University of Hong Kong)
Abstract In South China, the Yangtze and Cathaysia blocks were welded together along the Jiangnan Fold Belt during Neoproterozoic time (∼830 Ma). Large-scale mineralization in these two blocks occurred from Proterozoic to Cenozoic, making the region one of the most important polymetallic metallogenic provinces in the world. Of particular importance are world-class deposits of iron-oxide copper gold (IOCG), sediment-hosted Mn-P-Al-(Ni, Mo, PGE), syenite-carbonatite-related REE, felsic intrusion-r...
36 Citations Source Cite
Published on Apr 1, 2017in Journal of Asian Earth Sciences 2.87
Ruizhong Hu36
Estimated H-index: 36
(CAS: Chinese Academy of Sciences),
Shanling Fu2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences)
+ 6 AuthorsJiafei Xiao1
Estimated H-index: 1
(CAS: Chinese Academy of Sciences)
Abstract The South China Craton was formed by amalgamation of the Yangtze and Cathaysia Blocks during the Neoproterozoic. During the Mesozoic, voluminous granitic plutons and associated W-Sn polymetallic deposits were formed in the Cathaysia Block. The giant South China low-temperature metallogenic domain (LTMD) includes an area of ∼500,000 km 2 in the Yangtze Block and is composed of the Chuan-Dian-Qian Pb-Zn, Youjiang Au-As-Sb-Hg and Xiangzhong Sb-Au metallogenic provinces. The Chuan-Dian-Qian...
38 Citations Source Cite
Published on Mar 1, 2017in Ore Geology Reviews 3.99
Indrani Mukherjee5
Estimated H-index: 5
(UTAS: University of Tasmania),
Rr Large36
Estimated H-index: 36
(UTAS: University of Tasmania)
Abstract Sedimentary pyrites in black shales contain abundant trace elements that provide information on the chemistry of the seawater at the time of sedimentation. This study focuses on the Barney Creek Formation (~ 1640 Ma) in the McArthur Basin in the Northern Territory of Australia, which is host to one of the world's largest SEDEX Zn-Pb-Ag deposits, and several smaller deposits. Fine-grained sedimentary pyrite has been sampled from three drill holes through the Barney Creek Formation at var...
16 Citations Source Cite
Published on Dec 1, 2016in Ore Geology Reviews 3.99
Ia Belousov4
Estimated H-index: 4
(UTAS: University of Tasmania),
Rr Large36
Estimated H-index: 36
(UTAS: University of Tasmania)
+ 3 AuthorsT Beardsmore2
Estimated H-index: 2
Abstract The Archaean Yilgarn Craton (Western Australia) is a world-class metallogenic province, hosting considerable resources of Au, Ag, Ni, Cu, Zn and Fe. Here we present trace element compositions of pyrite from > 30 orogenic Au and 5 volcanic hosted massive sulphide (VHMS) deposits across the Yilgarn. Pyrites from VHMS deposits tend to have higher Sn, Se, Cu, Pb, Bi and lower Ni relative to orogenic deposits. VHMS deposit pyrites commonly have Co > Ni, As > 100Au, Te > Au, Se > Te. Orogenic...
20 Citations Source Cite
Published on Aug 1, 2016in American Mineralogist 2.65
Denis Fougerouse9
Estimated H-index: 9
(Curtin University),
Steven M. Reddy30
Estimated H-index: 30
(Curtin University)
+ 3 AuthorsSteven Micklethwaite14
Estimated H-index: 14
(Monash University)
Auriferous sulfides, most notably pyrite (FeS 2 ) and arsenopyrite (FeAsS), are among the most important economic minerals on Earth because they can host large quantities of gold in many of the world’s major gold deposits. Here we present the first atom probe study of gold distribution in arsenopyrite to characterize the three-dimensional (3D) distribution of gold at the nanoscale and provide data to discriminate among competing models for gold incorporation in refractory ores. In contrast to mo...
24 Citations Source Cite
Published on Apr 1, 2016in Precambrian Research 3.91
Longming Li12
Estimated H-index: 12
(Hefei University of Technology),
Shoufa Lin14
Estimated H-index: 14
(Hefei University of Technology)
+ 4 AuthorsYanjie Zhang1
Estimated H-index: 1
Abstract The volcanic rocks in the eastern part of Jiangnan orogen provide an important suite to investigate magma petrogenesis and tectonic evolution of South China Block. We carried out a combined study of geochronology and geochemistry for the bimodal association of basalts and rhyolitic tuffs from the Shuangqiaoshan Group in south Anhui Province. Zircons from a basalt and two rhyolitic tuff samples yield crystallization ages of 829 ± 12 Ma, 832 ± 9 Ma and 832 ± 10 Ma, respectively. The basal...
31 Citations Source Cite
Published on Apr 1, 2016in Geochimica et Cosmochimica Acta 4.69
Denis Fougerouse9
Estimated H-index: 9
,
Steven Micklethwaite14
Estimated H-index: 14
+ 8 AuthorsDavid L. Paterson91
Estimated H-index: 91
(Australian Synchrotron)
Abstract Both gold-rich sulphides and ultra-high grade native gold oreshoots are common but poorly understood phenomenon in orogenic-type mineral systems, partly because fluids in these systems are considered to have relatively low gold solubilities and are unlikely to generate high gold concentrations. The world-class Obuasi gold deposit, Ghana, has gold-rich arsenopyrite spatially associated with quartz veins, which have extremely high, localised concentrations of native gold, contained in mic...
32 Citations Source Cite
Published on Jan 1, 2016in Economic Geology 3.29
Liqiang Yang22
Estimated H-index: 22
(China University of Geosciences),
Jun Deng31
Estimated H-index: 31
(China University of Geosciences)
+ 7 AuthorsHai Zhao2
Estimated H-index: 2
The Xincheng gold deposit, hosted by the Early Cretaceous 132 to 123 Ma Guojialing-type granitoids in northwest Jiaodong Peninsula, southeast North China craton, formed about 2 billion years later than regional metamorphism of the Archean Jiaodong basement rocks. The Xincheng deposit comprises mineralized zones with three types of hydrothermal pyrite associated with gold, tellurides, and a variety of sulfides: py 1 as disseminated euhedral to subhedral grains in altered granitoids around quartz ...
54 Citations Source Cite
Published on Oct 1, 2015in Precambrian Research 3.91
Yuzhi Zhang18
Estimated H-index: 18
(CAS: Chinese Academy of Sciences),
Yuejun Wang48
Estimated H-index: 48
(SYSU: Sun Yat-sen University)
+ 1 AuthorsAimei Zhang16
Estimated H-index: 16
(SOA: State Oceanic Administration)
Abstract The early Neoproterozoic amalgamation process of the Yangtze with Cathaysia blocks in South China is an important geoscience issue and its collisional time has attracted extensive attention during the past decades. The Linjiawan conglomerate and Yinzhuba agglomerate of the Cangshuipu Group and associated rocks along the Central Jiangnan Orogen preserved key records for better constraining the assembly process of the Yangtze with Cathaysia blocks. This study presents a set of new geochro...
26 Citations Source Cite
Published on May 1, 2015in Geology of Ore Deposits 0.63
Yu. A. Kalinin5
Estimated H-index: 5
(NSU: Novosibirsk State University),
E.A. Naumov3
Estimated H-index: 3
(NSU: Novosibirsk State University)
+ 2 AuthorsA. I. Antropova1
Estimated H-index: 1
(NSU: Novosibirsk State University)
The Ob-Zaisan folded zone is a fragment of a single structure composed of Paleozoic sedimentary and volcanogenic rocks (mainly black shale), which was formed at the margin of the Siberian continent and features a common set of magmatic complexes and mineral systems. However, there are some differences that determine the specific geological and metallogenic features of the Irtysh-Zaisan and Kolyvan-Tomsk fragments of the Ob-Zaisan folded zone. In the gold deposits of the West Kalba and Kolyvan-To...
2 Citations Source Cite
Cited By3
Newest
Published on Mar 1, 2019in American Mineralogist 2.65
Wei Li4
Estimated H-index: 4
(China University of Geosciences),
Nigel J. Cook32
Estimated H-index: 32
(University of Adelaide)
+ 3 AuthorsSe Gilbert15
Estimated H-index: 15
(University of Adelaide)
Source Cite
Published on Feb 4, 2019in Minerals 1.83
Nan Li6
Estimated H-index: 6
,
Jun Deng31
Estimated H-index: 31
+ 1 AuthorsRi Han
Six orogenic gold deposits constitute the Yangshan gold belt in the West Qinling Orogen. Gold is mostly invisible in solid solution or in the sulfide lattice, with minor visible gold associated with stibnite and in quartz-calcite veins. Detailed textural and trace-element analysis of sulfides in terms of a newly-erected paragenetic sequence for these deposits, together with previously published data, demonstrate that early magmatic-hydrothermal pyrite in granitic dike host-rocks has much higher ...
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Published on Oct 1, 2018in Ore Geology Reviews 3.99
Wei Li4
Estimated H-index: 4
(China University of Geosciences),
Guiqing Xie5
Estimated H-index: 5
+ 3 AuthorsSong Lu1
Estimated H-index: 1
(University of Melbourne)
Abstract The Gutaishan deposit is a slate-hosted Au–Sb deposit in the Xiangzhong metallogenic province, South China. The deposit has proven reserves of ca. 9 tonnes (t) of gold with an average grade of 13 g/t and 2,500 t of Sb with an average grade of 10%. In this study, muscovite 40 Ar/ 39 Ar and in situ sulfur isotope analyses of pyrite and arsenopyrite were performed to determine the mineralization age and the plausible source of S and Au. The 40 Ar/ 39 Ar dating result of muscovite limits th...
2 Citations Source Cite