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![Photographs of hand specimens from the Badu deposit (a-j) and Jinfeng, Linwang, Jinya, and Nakuang deposits (k-o). (a) Least altered dolerite with porphyritic texture. (b-e) Disseminated pyrite and arsenopyrite in mineralized dolerites with variable gold grade. (f) Silicified dolerite with abundant carbonaceous matter. (g) Mineralized dolerite crosscut by quartz veins and solid carbonaceous material veinlets. (h, i) Mineralized dolerite crosscut by quartz-ankerite veins with clots of hydrothermal sericite. (j) Altered dolerite cut by pyrite-quartz veinlet and quartz-ankerite vein containing pyrite. (k) Barren dolomitic calcareous siltstone and (l) ore-grade silicified calcareous siltstone with disseminated pyrite from the Jinfeng deposit. (m) Ore-grade silicified calcareous siltstone with disseminated arsenopyrite and pyrite from the Nakuang deposit. (n) Brecciated ore-grade silicified calcareous siltstone with abundant disseminated arsenopyrite cemented by quartz-ankerite from the Jinya deposit. (o) High-grade silicified calcareous siltstone crosscut by quartz-calcite veinlets from the Linwang deposit. Abbreviations: Ank = ankerite, Apy = arsenopyrite, BD = Badu, C = carbonaceous matter, Cal = calcite, JF = Jinfeng, JY = Jinya, LW = Linwang, NK = Nakuang, Py = pyrite, Qz = quartz, Ser = sericite.]()
![Summary of zircon U-Th/He ages (a), correlations of eU with 4He abundance (b), grain radius with zircon (U-Th)/He ages (c), and eU with zircon (U-Th)/He ages (d) of samples from the Badu, Jinfeng, Linwang, Jinya, and Nakuang deposits. The black and gray dashed boxes emphasize JF-2@1 and LW-1@1 dates, which have lower zircon U-Th/He ages because of smaller size (Rs) and/or lower eU.]()
![Mineral paragenesis for dolerite rock-hosted (Badu) and sedimentary rock-hosted (Jinfeng, Linwang, Jinya, Nakuang, and Badu) gold deposits in the Youjiang basin.]()
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![BSE images (a-j) and photographs (k, l) of variably altered and mineralized samples from the Jinfeng, Linwang, Jinya, and Nakuang Carlin-type gold deposits. (a, d) Barren siltstone with <0.005 ppm Au composed of quartz and ferroan dolomite with minor dolomite, calcite, pyrite, and carbonaceous matter. Ferroan dolomite cores contain numerous mineral inclusions of muscovite and quartz. (b, e) Low-grade siltstone with <1 ppm Au consisting of ferroan dolomite that is partially replaced by quartz; calcite is absent. (c, f) Ore-grade siltstone with >3 ppm Au containing abundant pyrite and relict ferroan dolomite that is intensively replaced by quartz. (g) Mineralized siltstone with abundant arsenopyrite and pyrite is crosscut by quartz veinlets containing little or no sulfides. (h) Euhedral dark pyrite core and bright oscillatory zoned arsenian pyrite rim. (i) Corroded dark pyrite core rimmed by bright arsenian pyrite and arsenopyrite. (j, k) Mineralized siltstone and ore-stage quartz-ankerite veinlets cut by late realgar veinlets. Note coin for scale in k. (l) Open-space-filling realgar intergrown with drusy quartz and stibnite intergrown with calcite and quartz. Abbreviations: Ank = ankerite, Ap = apatite, Apy = arsenopyrite, C = carbonaceous matter, Cal = calcite, Dol = dolomite, Fe-Dol = Fe-bearing dolomite, Ill = illite, Mus = muscovite, Py = pyrite, Qz = quartz, Rlg = realgar, Stbn = stibnite.]()
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Nakuang Deposit
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Image
Photographs of hand specimens from the Badu deposit (a-j) and Jinfeng, Linw... Available to Purchase
in U-Pb Dating on Hydrothermal Rutile and Monazite from the Badu Gold Deposit Supports an Early Cretaceous Age for Carlin-Type Gold Mineralization in the Youjiang Basin, Southwestern China
> Economic Geology
Published: 01 September 2021
Fig. 5. Photographs of hand specimens from the Badu deposit (a-j) and Jinfeng, Linwang, Jinya, and Nakuang deposits (k-o). (a) Least altered dolerite with porphyritic texture. (b-e) Disseminated pyrite and arsenopyrite in mineralized dolerites with variable gold grade. (f) Silicified dolerite
Image
Summary of zircon U-Th/He ages (a), correlations of eU with 4 He abundance... Available to Purchase
in U-Pb Dating on Hydrothermal Rutile and Monazite from the Badu Gold Deposit Supports an Early Cretaceous Age for Carlin-Type Gold Mineralization in the Youjiang Basin, Southwestern China
> Economic Geology
Published: 01 September 2021
Fig. 11. Summary of zircon U-Th/He ages (a), correlations of eU with 4 He abundance (b), grain radius with zircon (U-Th)/He ages (c), and eU with zircon (U-Th)/He ages (d) of samples from the Badu, Jinfeng, Linwang, Jinya, and Nakuang deposits. The black and gray dashed boxes emphasize JF-2@1
Image
Mineral paragenesis for dolerite rock-hosted (Badu) and sedimentary rock-ho... Available to Purchase
in U-Pb Dating on Hydrothermal Rutile and Monazite from the Badu Gold Deposit Supports an Early Cretaceous Age for Carlin-Type Gold Mineralization in the Youjiang Basin, Southwestern China
> Economic Geology
Published: 01 September 2021
Fig. 6. Mineral paragenesis for dolerite rock-hosted (Badu) and sedimentary rock-hosted (Jinfeng, Linwang, Jinya, Nakuang, and Badu) gold deposits in the Youjiang basin.
Journal Article
U-Pb Dating on Hydrothermal Rutile and Monazite from the Badu Gold Deposit Supports an Early Cretaceous Age for Carlin-Type Gold Mineralization in the Youjiang Basin, Southwestern China Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 September 2021
Economic Geology (2021) 116 (6): 1355–1385.
...Fig. 5. Photographs of hand specimens from the Badu deposit (a-j) and Jinfeng, Linwang, Jinya, and Nakuang deposits (k-o). (a) Least altered dolerite with porphyritic texture. (b-e) Disseminated pyrite and arsenopyrite in mineralized dolerites with variable gold grade. (f) Silicified dolerite...
FIGURES
Includes: Supplemental Content
Image
BSE images (a-j) and photographs (k, l) of variably altered and mineralized... Available to Purchase
in U-Pb Dating on Hydrothermal Rutile and Monazite from the Badu Gold Deposit Supports an Early Cretaceous Age for Carlin-Type Gold Mineralization in the Youjiang Basin, Southwestern China
> Economic Geology
Published: 01 September 2021
Fig. 9. BSE images (a-j) and photographs (k, l) of variably altered and mineralized samples from the Jinfeng, Linwang, Jinya, and Nakuang Carlin-type gold deposits. (a, d) Barren siltstone with <0.005 ppm Au composed of quartz and ferroan dolomite with minor dolomite, calcite, pyrite
Journal Article
Large-scale basement mobilization endows the giant Carlin-type gold mineralization in the Youjiang Basin, South China: Insights from mercury isotopes Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 16 March 2023
GSA Bulletin (2023) 135 (11-12): 3163–3172.
.... A total of 101 mineralized samples from seven Carlin-type Au deposits, namely Shuiyindong, Lanmuchang, Jinfeng, Linwang, Jinya, Nakuang, and Badu deposits ( Fig. 1B ) throughout the Youjiang Basin were collected in this study. These deposits are representative of various styles of Au mineralization...
FIGURES
Journal Article
Interesting Papers in Other Journals Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 June 2023
Economic Geology (2023) 118 (4): 927–930.
... China Kai Luo, Alexandre Cugerone, and Mao-Da Lu 1343 Texture and geochemistry of pyrite from the Jinya, Nakuang and Gaolong gold deposits in the Youjiang Basin: Implications for basin-scale gold mineralization Lin Yang, Qingfei Wang, and Jun Deng 1367 Timing and sources of skarn mineralization...
Journal Article
Role of impurities in the semiconducting properties of natural pyrite: Implications for the electrochemical accumulation of visible gold and formation of hydrothermal gold deposits Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2025
American Mineralogist (2025) 110 (2): 189–216.
... , 203 – 214 , https://doi.org/10.1016/j.gsf.2019.03.002 . Yang , L. , Wang , Q. , Large , R.R. , Fougerouse , D. , Mukherjee , I. , Zhang , Q. , and Deng , J. ( 2022 ) Texture and geochemistry of pyrite from the Jinya, Nakuang and Gaolong gold deposits...
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