Distribution and mobilization of Sn in silicate minerals from the Mesozoic Shizhuyuan W-dominated polymetallic deposit, South China

Yuan, Jiangyan; Hou, Quanlin; Yang, Zhongfang; Jiang, Hua; Hu, Zhaochu; Yu, Tingdong

doi:10.1016/j.oregeorev.2018.07.027

Cited by 13 publications

(11 citation statements)

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“…Previous studies have suggested that the emplacement of the granodiorite porphyry related to the Dafang deposit occurred during the Late Jurassic period (Mi et al, 2018;Wang et al, 2022). This timing is consistent with the large-scale magma eruption events in the Nanling region and is associated with extensional tectonic settings (Mao et al, 2004;Yuan et al, 2011;Zhang R Q et al, 2017;Yuan et al, 2018). Wang et al (2022) conducted a study on the Dafang Au-Pb-Zn-Ag deposit and classified it as an epithermal deposit based on various lines of evidence.…”

Section: Metallogenic Model and Implicationssupporting

confidence: 56%

“…Numerous W-Sn-Cu-Pb-Zn polymetallic deposits are closely associated with contemporaneous granitoids (Fig. 1b; Wang et al, 2003;Mao et al, 2004;Yuan et al, 2011;Guo et al, 2012;Zhang R Q et al, 2017;Yuan et al, 2018;Sun et al, 2019;Xiao et al, 2019;Wang et al, 2022;Shi et al, 2023). The granitoids in the southern Hunan province can be classified into two types: granodiorite porphyries and granites.…”

Section: Regional Geologymentioning

confidence: 96%

“…The Dafang deposit is situated in the Nanling W-Sn-Cu-Pb-Zn polymetallic belt within the South China Block (Wang et al, 2003;Mao et al, 2004;Yuan et al, 2011;Guo et al, 2012;Mao et al, 2013;Zhang R Q et al, 2017;Yuan et al, 2018;Xiao et al, 2019), which is classified as a medium Au-Pb-Zn-Ag deposit with a total Au content of 6 tons and an average grade of 1.80 g/t (Wang K X et al, 2021(Wang K X et al, , 2022. Previous studies suggest that Dafang is a lowtemperature gold deposit associated with the periphery of a high-temperature tin-copper metallogenic system (Mi et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Garnet and Zircon U‐Pb Geochronology and Geochemistry Reveal Genesis of the Dafang Au‐Pb‐Zn‐Ag Deposit, Southern Hunan

JIANG,

KONG,

LIU

et al. 2024

Acta Geologica Sinica (Eng)

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Garnet is a primary mineral in skarn deposits and plays a significant role in recording copious mineralization and metallogenic information. This study systematically investigates the geochemistry and geochronology of garnet and zircon in the Dafang Au‐Pb‐Zn‐Ag deposit, which represents prominent gold mineralization in southern Hunan, China. Garnet samples with distinct zoning patterns and compositional variations were identified using various analytical techniques, including Backscattered Electron (BSE) imaging, Cathodoluminescence (CL) response, textural characterization, and analysis of rare‐earth elements (REE), major contents, and trace element compositions. The garnet was dated U‐Pb dating, which yielded a lower intercept age of 161.06 ± 1.93 Ma. This age is older than the underlying granodiorite porphyry, which has a concordia age of 155.13 ± 0.95 Ma determined by zircon U‐Pb dating. These results suggest that the gold mineralization may be related to the concealed granite. Two groups of garnet changed from depleted Al garnet to enriched Al garnet, and the rare earth element (REE) patterns of these groups were converted from light REE (LREE)‐enriched and heavy REE (HREE)‐depleted with positive europium (Eu) anomalies to medium REE (MREE)‐enriched from core to rim zoning. The different REE patterns of garnet in various zones may be attributed to changes in the fluid environment and late superposition alteration. The development of distal skarn in the southern Hunan could be a significant indicator for identifying gold mineralization.

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Section: Metallogenic Model and Implicationssupporting

confidence: 56%

Section: Regional Geologymentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Garnet and Zircon U‐Pb Geochronology and Geochemistry Reveal Genesis of the Dafang Au‐Pb‐Zn‐Ag Deposit, Southern Hunan

JIANG,

KONG,

LIU

et al. 2024

Acta Geologica Sinica (Eng)

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“…The Nanling Range is well known worldwide for its large-scale Mesozoic magmatism and genetically related W-Sn polymetallic deposits, which account for more than 50% of all Chinese W-Sn resources [5][6][7]. Some of the large, world-class deposits in the Nanling Range include the Shizhuyuan W-polymetallic deposit, Xintianling W-Mo deposit, Furong Sn deposit, Hongqiling Sn-W-Pb-Zn deposit and Xianghualing Sn-Pb-Zn deposit [8][9][10][11][12][13], among which the Shizhuyuan W-polymetallic deposit is one of the largest polymetallic deposits in the world with giant W-Sn-Mo-Bi sources [7,14,15]. Extensive studies of these polymetallic deposits over the past few decades have greatly improved our understanding of their petrogenesis, geochronology, geochemistry and metallogenesis [3,4,[16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Extensive studies of these polymetallic deposits over the past few decades have greatly improved our understanding of their petrogenesis, geochronology, geochemistry and metallogenesis [3,4,[16][17][18][19][20][21]. Although we have previously discussed the distribution and mobilization of Sn in the Shizhuyuan W-polymetallic deposit [13], studies on other trace element occurrences in minerals and mobilization between minerals and their alteration products are still insufficient and could improve and deepen the understanding of W mineralization of giant ore accumulations. [16] and Jiang et al [22]).…”

Section: Introductionmentioning

confidence: 99%

LA-ICP-MS Analysis of Minerals from the Shizhuyuan W-Polymetallic Deposit, South China: Implications for Mineralization of Pb, W, Mo and Bi

et al. 2020

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The South China Block (SCB) is a globally important metallogenic district containing numerous W-Sn deposits. Extensive studies of W-polymetallic deposits in this region have greatly improved our understanding of the petrogenesis, geochronology and metallogenesis of these systems. However, studies on the mobilization of ore-forming elements between mineralization- and alteration-related minerals using in situ analyses are rare. Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), we analyzed W, Pb, Mo and Bi concentrations in silicate minerals and scheelite from granites and skarns associated with the Shizhuyuan W-polymetallic deposit in the Nanling Range in the SCB. Data show that muscovitized biotite in granites contains high W contents. Pb mainly occurs in K-feldspar and plagioclase in granites and epidote and scheelite in skarns. Bi mainly occurs in epidote in skarns. Scheelite in skarns contains high W and Mo contents. Pb isomorphously substitutes K or Ca in silicate minerals and scheelite. W isomorphously substitutes Ti in biotite. Mo isomorphously substitutes W in scheelite and occurs as W-bearing submicroscopic inclusions in minerals with low contents. Bi isomorphously substitutes Pb when the Pb content is relatively high and occurs as Bi-bearing micro or submicroscopic inclusions in minerals when the Pb content is low. Biotite and feldspar are altered in a magmatic-hydrothermal process, W enriched in biotite, Pb enriched in feldspar and the W-, Pb-, Mo- and Bi-bearing submicroscopic inclusions are excluded from minerals and released to the magmatic-hydrothermal fluids. Large amounts of W are precipitated in scheelite when the fluids come in contact with carbonate rocks to form skarn, while a few contents of Pb, Mo and Bi are distributed in skarn minerals. Thus, large amounts of Pb, Mo, Bi and residual W remain in the fluids, which results in the formation of a W-Sn-Mo-Bi massive skarn ore.

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Tin-bearing minerals at the Furong tin deposit, South China: Implications for tin mineralization

Chen

et al. 2022

Geochemistry

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Distribution and mobilization of Sn in silicate minerals from the Mesozoic Shizhuyuan W-dominated polymetallic deposit, South China

Cited by 13 publications

References 50 publications

Garnet and Zircon U‐Pb Geochronology and Geochemistry Reveal Genesis of the Dafang Au‐Pb‐Zn‐Ag Deposit, Southern Hunan

Garnet and Zircon U‐Pb Geochronology and Geochemistry Reveal Genesis of the Dafang Au‐Pb‐Zn‐Ag Deposit, Southern Hunan

LA-ICP-MS Analysis of Minerals from the Shizhuyuan W-Polymetallic Deposit, South China: Implications for Mineralization of Pb, W, Mo and Bi

Tin-bearing minerals at the Furong tin deposit, South China: Implications for tin mineralization

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