Micro-textural and fluid inclusion data constraints on metallic remobilization of the Ashele VMS Cu-Zn deposit, Altay, NW China

Zheng, Yi; Wang, Yuejun; Chen, Huayong; Zhao, Lin; Hou, W.-S.; Li, Dengfeng

doi:10.1016/j.gexplo.2016.06.015

Cited by 25 publications

(4 citation statements)

References 52 publications

(101 reference statements)

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“…In addition to the Jiashengpan, many of the identified base metals deposits show characteristics of multi-stage mineralization or metal remobilization associated with orogenic activity, such as the Coeur d'Alene Ag-Pb-Zn-Cu-Au veins in Idaho, USA [52]; the Keketale Pb-Zn-(Ag) deposit and the Ashele Cu-Zn deposit in Altay in the western CAOB (Central Asian Orogenic Belt) [9,53]; Talate Pb-Zn deposit in Altay, China [54]; some base metal deposits in the Iberian Pyrite Belt, such as Neves Corvo VMS Cu deposit [55] and Tharsis VMS Cu-Zn-Pb deposit [56]; and the Falun pyritic Zn-Pb-Cu-(Au-Ag) sulfide deposit in Bergslagen, Sweden [57]. The XMOB (Xing'an Mongolian Orogenic Belt), the Bainaimiao Cu-Au-Mo deposit located~600 km northeast of the Jiashengpan, provides another case of shear zone-controlled base metal mineralization in a Devonian collisional setting.…”

Section: Discussionmentioning

confidence: 99%

Geochronological Study of the Jiashengpan Zn–Pb Deposit in Northern China: Implications for Base Metal Mineralization in Collisional Orogens

Zhong

Xie

et al. 2019

Minerals

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The Jiashengpan Zn–Pb deposit is located in the Langshan-Zhaertai region of the North China Craton. Zinc-lead mineralization at the Jiashengpan shows characteristics of shear-zone controlled syn-metamorphic mineralization. The 39Ar/40Ar ages of syn-ore hydrothermal muscovite averages at ~380 Ma, suggesting that the Zn–Pb mineralization took place in the Devonian. These results agree with zircon U–Pb ages of post-ore granite, which constrain the ore formation to be older than 277 ± 2 Ma. Ore formation was coeval with the emplacement of regional orogenic belts that formed as result of subduction associated with the closure of the eastern Paleo-Asian Ocean (~400 Ma). The Jiashengpan deposit provides evidence for base metal mineralization associated with metamorphogenic and shear-zone controlled characteristics during continental-continental collision, stressing the significance of orogenic activities for enrichment of base metals.

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Section: Discussionmentioning

confidence: 99%

Geochronological Study of the Jiashengpan Zn–Pb Deposit in Northern China: Implications for Base Metal Mineralization in Collisional Orogens

Zhong

Xie

et al. 2019

Minerals

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“…A main issue for determining metallogenic models of ore deposits located in orogenic belts resides in the possibility of inheritance or remobilization through time from the initial crystallization/deposition up to the different orogenic deformation stages (e.g., [82][83][84][85]). In this study, major efforts were thus made to investigate mineral microstructures and compositional variations for discriminating crystallization steps.…”

Section: An Alpine Pb-ag Mineralizationmentioning

confidence: 99%

A New Alpine Metallogenic Model for the Pb-Ag Orogenic Deposits of Macôt-la Plagne and Peisey-Nancroix (Western Alps, France)

et al. 2022

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Understanding mass transfer associated with fluids circultion and deformation in the Alpine orogeny is often complex due to common multistage crystallization. For example, in two emblematic and historic Pb-Ag deposits of the French Alps, Macôt-la Plagne (MP) and Peisey-Nancroix (PN), a sedimentary or orogenic origin is still debated. To discriminate between the metallogenic models of the two deposits, an integrative methodology combining field, microstructural, mineralogical, thermobarometrical, and geochronological data was here applied for establishing detailed Pressure–Temperature–Time–Deformation (P-T-t-d) mineralization conditions. Both deposits are located in Permo-Triassic quartzite of the External Briançonnais domain along the Internal Briançonnais Front (Internal Western Alps). The ore mainly occurs as veins and disseminated textures containing galena, pyrite, and variable content of tetrahedrite–tennantite and chalcopyrite. Quartz porphyroclasts and sulfide microstructures indicate a dynamic recrystallization of the quartzite during the main fluid mineralization episode. Chlorites and K-white micas (phengite) chemical analysis and thermodynamic modeling from compositional maps indicate an onset of the mineralization at 280 °C, with a main precipitation stage at 315 ± 35 °C and 6.25 ± 0.75 kbar. In situ U-Pb dating on monazite, cogenetic with sulfides, gives ages around 35 Ma for both deposits. The integrative dataset converges for a cogenetic MP-PN Alpine Pb-Ag mineralization during deformation in relation to the thrusting of the “Nappe des Gypses” and the Internal Briançonnais at the metamorphic peak.

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“…Volcanogenic massive sulfide (VMS) deposits are an important source of copper, lead, and zinc [1]. Previous studies on various Paleozoic to Cenozoic VMS deposits have revealed their most significant features, which primarily include: (1) an extensional geotectonic environment for their formation such as midocean ridges, back-arc basins, continental rifts and island-arcs [2]; (2) zonation from a layered massive sulfide unit to a footwall stockwork mineralization zone [3,4]; (3) extensive and intensive proximal alteration assemblages including quartz, chlorite, white mica (sericite) and pyrite [2,4], (4) moderate-temperature ore-forming fluids derived from heated seawater leaching into the surrounding and underlying volcanic rocks and/or magmatic-hypothermal fluids [2,4].…”

Section: Introductionmentioning

confidence: 99%

Geology, Fluid Inclusions and Stable Isotopes of the Xialiugou Polymetallic Deposit in North Qilian, Northwest China: Constraints on its Metallogenesis

et al. 2019

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The Xialiugou polymetallic deposit is located in the North Qilian Orogenic Belt, Northwest China, of which the main ore-bearing strata are the Middle Cambrian Heicigou Group. The mineralization is zoned with “black” orebodies (galena–sphalerite), which are stratigraphically above the “yellow” orebodies (pyrite–chalcopyrite–tennantite) at the lower zone, corresponding to the alteration assemblages of quartz–sericite in the ore-proximal zone and chlorite in the ore-distal zone. The Xialiugou mineralization can be divided into three stages: (1) Stage I (pyrite); (2) Stage II (chalcopyrite–tennantite–sphalerite); and (3) Stage III (galena–sphalerite). Fluid inclusions data indicate that the physicochemical conditions that lead to ore formation were the medium–low temperature (157–350 °C) and low salinity (0.17–6.87 wt % NaCleqv), and that the ore-forming temperature tended to decrease with the successive mineralization processes. Taking the H–O isotopic compositions (δDV-SMOW = −51.0‰ to −40.5‰, δ18OH2O = −0.4‰ to 8.6‰) into consideration, the ore-forming fluids were most likely derived from seawater with a small amount of magmatic- and meteoric-fluids input. In addition, the combined S (−3.70‰ to 0.10‰) and Pb isotopic (206Pb/204Pb = 18.357 to 18.422, 207Pb/204Pb = 15.615 to 15.687, 208Pb/204Pb = 38.056 to 38.248) data of pyrite indicate that the ore-bearing volcanic rocks may be an important source of ore-forming materials. Finally, we inferred that the Xialiugou deposit shares similarities with the most important volcanogenic massive sulfide (VMS) deposits (Baiyinchang ore field) in China and typical “black ore” type VMS deposits worldwide.

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Micro-textural and fluid inclusion data constraints on metallic remobilization of the Ashele VMS Cu-Zn deposit, Altay, NW China

Cited by 25 publications

References 52 publications

Geochronological Study of the Jiashengpan Zn–Pb Deposit in Northern China: Implications for Base Metal Mineralization in Collisional Orogens

Geochronological Study of the Jiashengpan Zn–Pb Deposit in Northern China: Implications for Base Metal Mineralization in Collisional Orogens

A New Alpine Metallogenic Model for the Pb-Ag Orogenic Deposits of Macôt-la Plagne and Peisey-Nancroix (Western Alps, France)

Geology, Fluid Inclusions and Stable Isotopes of the Xialiugou Polymetallic Deposit in North Qilian, Northwest China: Constraints on its Metallogenesis

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