Formation of the Wulong gold deposit, Liaodong gold Province, NE China: Constraints from zircon U–Pb age, sericite Ar–Ar age, and H–O–S–He isotopes

Liu, Jun; Zhang, Lejun; Wang, Shuling; Li, Tiegang; Yang, Yan; Liu, Fuxing; Li, Shenghui; Duan, Chao

doi:10.1016/j.oregeorev.2019.04.013

Cited by 35 publications

(7 citation statements)

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“…The δ 34 S values of pyrite at Jinying show a narrow range from + 0.1 ‰ to + 2.8‰ (mean = 1.6 ‰, n = 24), which are consistent with those from the typical magmatic-hydrothermal deposit worldwide (0 ± 3 ‰, Ohmoto & Rye 1979) and from magmatic-hydrothermal Au deposits in the Liaodong Peninsula (e.g. Wulong, Liu et al 2019, Zhang et al 2020; Xinfang, Zhang et al 2022a). These data indicate that the sulphur of the Jinying deposit was derived from a magmatic source.…”

Section: Discussionsupporting

confidence: 81%

Genesis of the Jinying gold deposit, southern Jilin Province, NE China: Constraints from geochronology and isotope geochemistry

Zhang,

Wu,

et al. 2023

Geol. Mag.

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The Jinying gold deposit is located in southern Jilin Province in northeast China and is representative of the large Early Cretaceous gold deposits in this area. To better understand ore genesis of this deposit, a multi-isotope integrated analysis of U–Pb–Rb–Sr–He–Ar–S has been carried out. Laser ablation inductively coupled plasma–mass spectrometry (LA–ICP–MS) dating of zircons from the granodiorite porphyry and dioritic porphyrite in the study area yields ages of 172.1 ± 1.2 Ma and 122.5 ± 0.8 Ma, suggesting that corresponding intrusion occurred in the Middle Jurassic and the Early Cretaceous. Rb–Sr dating of the pyrite yields an isochron age of 120 ± 3 Ma, suggesting that gold mineralization occurred in the Early Cretaceous. The fluid inclusions in pyrite yield 3He/4He ratios clustered within a small range from 0.08 to 0.13 Ra, 40Ar/36Ar ratios between 331.6 and 351.3, and mantle He in the range of 1.0–1.6%, indicating that the ore-forming fluids originated from a mixed crustal and mantle source. The in situ S isotopic values of pyrite vary between + 0.1 ‰ and + 2.8 ‰, suggesting that the ore-related sulphur came from the deep magmatic source. Combined with the geological history of the study area, it can be concluded that the gold mineralization was possibly related to the extensional setting associated with the rollback of the Palaeo-Pacific Plate.

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Section: Discussionsupporting

confidence: 81%

Genesis of the Jinying gold deposit, southern Jilin Province, NE China: Constraints from geochronology and isotope geochemistry

Zhang,

Wu,

et al. 2023

Geol. Mag.

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“…It is worth noting that similar δ 34 S values were also reported for the Wulong goldfield (Yu et al ., 2018; Feng et al ., 2019; Chen et al ., 2020), which is located about 100 km northeast of the Xinfang deposit and was formed from magmatic‐hydrothermal fluids (Yu et al ., 2018; Feng et al ., 2019; Liu, Zhang, et al ., 2019; Chen et al ., 2020; Cheng et al ., 2020; Yu, Zeng, Frimmel, et al ., 2020; Zhang et al ., 2020). The δ 34 S values for the sulfides within the auriferous quartz veins of the Wulong gold deposit range from 0.9 to 3.9‰ (Yu et al ., 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, previous C–H–O isotopes suggest that the Xinfang ore‐forming fluids were derived from a magmatic‐hydrothermal source (Guo et al ., 2005; Wei et al ., 2007). Recent articles also argue that the gold deposits hosted within the Liaodong Peninsula, such as the Wulong (Liu, Wang, et al ., 2018; Yu et al ., 2018; Liu, Zhang, et al ., 2019; Chen et al ., 2020; Cheng et al ., 2020; Yu, Zeng, Frimmel, et al ., 2020; Zeng et al ., 2020; Zhang et al ., 2020), Sidagou (Feng et al ., 2019; Chen et al ., 2020), Baiyun (Liu, Liu, et al ., 2019; Sun et al ., 2019; Zhang et al ., 2019; Sun, Zeng, Zhou, et al ., 2020), and Xiaotongjiapuzi (Liu et al ., 2020), can be classified as magmatic‐hydrothermal gold systems. These deposit are related to lithospheric thinning within the northeastern NCC, which was triggered by the subduction of the Paleo‐Pacific plate during the Early Cretaceous.…”

Section: Discussionmentioning

confidence: 99%

“…However, the currently known gold endowment of the Liaodong Peninsula (~500 t, Zeng et al ., 2019) is significantly lower than that in the Jiaodong Peninsula, which may be attributed to the lack of exploration data (Zhu et al ., 2015; Fan et al ., 2016). A considerable amount of research has been driven in recent years to investigate the three main goldfields in the Liaodong Peninsula (Figure 1b), including the Wulong (e.g., Liu et al ., 2018; Xiao et al ., 2018; Yu et al ., 2018; Feng et al ., 2019; Liu, Zhang, et al ., 2019; Chen et al ., 2020; Cheng et al ., 2020; Yu, Zeng, Frimmel, et al ., 2020; Yu, Zeng, Xia, et al ., 2020; Zhang et al ., 2020), Maoling (e.g., Zhang et al ., 2017; Liu et al ., 2018), and Qingchengzi goldfields (e.g., Liu, Liu, et al ., 2019; Sun et al ., 2019; Zhang et al ., 2019; Di et al ., 2020; Liu et al ., 2020; Sun, Zeng, Wang, et al ., 2020; Sun, Zeng, Zhou, et al ., 2020). The majority of the previous research focus on the timing, tectonic setting and metallogenetic model of the three main goldfields, however, little attention has been given to the satellite gold deposits outside the orefields.…”

Section: Introductionmentioning

confidence: 99%

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A magmatic‐hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in‐situ S–Pb isotopes and trace element analyses of pyrite

Zeng

Frimmel

et al. 2021

Resource Geology

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The Xinfang deposit is a large gold deposit (>20 t of Au) on the southern edge of the Liaodong Peninsula, China. A total of 37 gold‐bearing orebodies are identified along NS‐ and NW‐striking faults and are mainly hosted by the Archean and Neoproterozoic metamorphic rocks. Three stages of hydrothermal mineralization are distinguished, including Stage I of dominant quartz ± pyrite (Py1), Stage II of quartz‐polymetallic sulfide (Py2), and Stage III of quartz‐calcite ± pyrite (Py3). Gold primarily occurs at the Stage II in association with intensive silicification, pyritization, and sericitization. Here, we report on high‐precision in‐situ LA‐MC‐ICP‐MS analyses of S and Pb isotopic compositions of the sulfide minerals and LA‐ICP‐MS analyses of trace element signature of the pyrite from the Xinfang gold deposit. The δ34S values of the sulfides range from 1.3 to 5.3‰, which is consistent with a magmatic origin of S. The sulfides yield 208Pb/204Pb, 207Pb/204Pb, and 206Pb/204Pb ratios of 37.497–37.773, 15.323–15.410, and 17.004–17.229, respectively, which deviate from the values of the wall rocks, suggesting an external Pb source. The in‐situ LA‐ICP‐MS spot analyses of the pyrite reveals that gold occurs in two generations of pyrite (Py2 and Py3) but at low concentrations (≤0.06 ppm for Py2, ≤0.24 ppm for Py3). Visible gold, however, only occurs in the Stage II assemblage as inclusions in pyrite and quartz, and is distributed along the margins or within the fractures of the sulfides. The Py2 shows high Co, Ni, and As concentrations and is depleted in other trace elements typical of a magmatic‐hydrothermal derivation. In contrast, Py3 exhibits low concentrations in most trace elements. Trace element mapping of Py2 revealed correlations between Fe and Co, as well as Ni and As, indicating their couped substitution in the pyrite structure. The available geological, petrographic and geochemical data consistently suggest that the Xinfang gold deposit formed during the Early Cretaceous by hydrothermal fluids of magmatic contribution.

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“…Fluid inclusion volatiles from the Wulong deposit are dominated by H 2 O-CO 2 -CH 4 , and temperatures and salinity of the ore-forming stage vary from 219 to 328 °C and from 0.18 to 7.86 wt% NaCl equivalent, respectively (Yu et al 2018). The δD, δ 18 O, and δ 34 S values from quartzsulfide ores range from -98 ‰ to -77 ‰, +4.8 ‰ to +8.6 ‰, and +1.1‰ to +2.4‰, respectively, interpreted to represent magmatic fluid and sulfur sources (Liu et al 2019).…”

Section: Geologic Settingmentioning

confidence: 99%

Iron isotope fractionation in reduced hydrothermal gold deposits: A case study of the Wulong gold deposit, Liaodong Peninsula, East China

Zheng

Chen

Liu

et al. 2021

American Mineralogist

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Iron isotope fractionation in hydrothermal systems is a useful diagnostic tool for tracing ore-forming processes. Here, we report on the Fe isotopic compositions of a suite of hydrothermal minerals from ores (pyrite, pyrrhotite, and quartz) from the Wulong gold deposit, Liaodong Peninsula, East China. Pyrites from quartz sulfide ores show a δ 56 Fe (56 Fe/ 54 Fe in the sample relative to IRMM-14) variation from +0.11 ± 0.03‰ to +0.78 ± 0.03‰ (2SD), and pyrrhotites from the same vein are isotopically lighter than the pyrite, varying between-0.85 ± 0.01‰ and-0.07 ± 0.00‰. This result is consistent with theoretical predictions of equilibrium fractionation and published mineral compositions. For the first time, to our knowledge, we report the Fe isotopes of hydrothermal quartz that record the isotopic compositions of the ore-This is the peer-reviewed, final accepted version for American Mineralogist, published by the Mineralogical Society of America. The published version is subject to change. Cite as Authors (Year) Title. American Mineralogist, in press.

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Formation of the Wulong gold deposit, Liaodong gold Province, NE China: Constraints from zircon U–Pb age, sericite Ar–Ar age, and H–O–S–He isotopes

Cited by 35 publications

References 34 publications

Genesis of the Jinying gold deposit, southern Jilin Province, NE China: Constraints from geochronology and isotope geochemistry

Genesis of the Jinying gold deposit, southern Jilin Province, NE China: Constraints from geochronology and isotope geochemistry

A magmatic‐hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in‐situ S–Pb isotopes and trace element analyses of pyrite

Iron isotope fractionation in reduced hydrothermal gold deposits: A case study of the Wulong gold deposit, Liaodong Peninsula, East China

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