U–Pb and Re–Os isotopic systematics and zircon Ce4+/Ce3+ ratios in the Shiyaogou Mo deposit in eastern Qinling, central China: Insights into the oxidation state of granitoids and Mo (Au) mineralization

Han, Yingjie; Zhang, Shihong; Pirajno, Franco; Zhou, Xiwen; Zhao, Guochun; Qü, Wenjun; Liu, Shihua; Zhang, Jiangming; Liang, Haibin; Yang, Kè

doi:10.1016/j.oregeorev.2013.04.006

Cited by 79 publications

(23 citation statements)

References 102 publications

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“…These data plot in the same field as the ore-related granites, showing that the ore minerals and the intrusions have the same sources. These characteristics are consistent with the conclusion obtained from isotope studies on ore-fluids from other late Mesozoic ore deposits in the EQMB Zhu et al, 2009;Han et al, 2013 andZhou et al, 2014).…”

Section: Pb Isotope Compositionssupporting

confidence: 91%

“…11). This is similar to the characteristics of the Shiyaogou-Yuanling porphyry Mo -epithermal Au system (Han et al, 2013) in the Hongzhuang area on the north side of the Machaoying fault (Fig. 1B) and the Qian'erchong Mo-Pb-Zn-Ag deposit in the Dabieshan area, on the eastern part of the Central China orogenic belt (Mi et al, 2014).…”

Section: A Coherent Magmatic-hydrothermal Metallogenic Systemsupporting

confidence: 79%

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The Luanchuan Mo–W–Pb–Zn–Ag magmatic–hydrothermal system in the East Qinling metallogenic belt, China: Constrains on metallogenesis from C–H–O–S–Pb isotope compositions and Rb–Sr isochron ages

Cao

Zhang

Santosh

et al. 2015

Journal of Asian Earth Sciences

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Section: Pb Isotope Compositionssupporting

confidence: 91%

Section: A Coherent Magmatic-hydrothermal Metallogenic Systemsupporting

confidence: 79%

The Luanchuan Mo–W–Pb–Zn–Ag magmatic–hydrothermal system in the East Qinling metallogenic belt, China: Constrains on metallogenesis from C–H–O–S–Pb isotope compositions and Rb–Sr isochron ages

Cao

Zhang

Santosh

et al. 2015

Journal of Asian Earth Sciences

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“…308; H. Zhang et al, ), but similar to those in zircons from rocks associated with the Shiyaogou large Mo deposit (av. 256; Han et al, ). The Ce 4+ /Ce 3+ ratios of zircons from monzogranite (av.…”

Section: Discussionmentioning

confidence: 99%

The formation of the Caosiyao giant porphyry Mo deposit on the northern margin of the North China Craton: Constraints from U―Pb and Re―Os geochronology, whole‐rock geochemistry, Hf isotopes, and oxygen fugacity of the magma

et al. 2018

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The Caosiyao giant porphyry Mo deposit (1.76 Mt), which is the third largest such deposit in China, is located on the northern margin of the North China Craton and associated with the Caosiyao intrusive complex that was emplaced in Archaean metamorphic rocks. The intrusive complex consists of monzogranite and coarse‐, medium‐, and fine‐grained granite porphyries that yield U―Pb ages of 148.5 ± 1.2, 146.4 ± 1.0, 144.6 ± 1.0, and 142.8 ± 3.2 Ma, respectively. Four molybdenite Re―Os model ages range from 143.1 ± 2.4 to 145.3 ± 2.1 Ma, which are consistent with the U―Pb ages for the igneous complex. The geochronological data indicate that the multistage magmatic‐hydrothermal processes were important in the formation of the Caosiyao giant deposit. The rocks of the Caosiyao granitic complex have high contents of silica (SiO2 = 71.7–75.6 wt.%) and total alkalis (mostly K2O + Na2O > 8 wt.%), low contents of CaO and MgO, and exhibit peraluminous high‐K calc‐alkaline to shoshonitic affinities. They are enriched in large‐ion lithophile elements (e.g., K, Rb, U, and Th) and light REEs and depleted in Eu, Ba, Sr, Nb, P, and Ti. The geochemical characteristics indicate advanced fractional crystallization and that the rocks are strongly fractionated I‐type granites. The negative Hf isotopic compositions of the granitic rocks, combined with old two‐stage Hf model ages, indicate the magmas were derived from partial melting of the ancient lower crust of the North China Craton. All the intrusive rocks in the complex have relatively high Ce4+/Ce3+ ratios and oxygen fugacity, which would have facilitated Mo extraction into the melts owing to the much higher solubility of S as sulphate (SO42−) than sulphide (S2−). The magma crystallization temperatures decreased from 882°C to 770°C as the magma evolved. The multistage magmatic‐hydrothermal processes, and the prolonged fractional crystallization, combined with high magma oxygen fugacity are the key factors to form the Caosiyao giant Mo deposit. The tectonic setting of deposit formation was one of extension related to rollback of the subducting Palaeo‐Pacific Plate during the Late Jurassic to Early Cretaceous.

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“…Late Jurassic to Early Cretaceous granitoids, including the Huashani complex (132.0–127.6 Ma, Mao et al, ; Xiao et al, ), Wuzhangshan (157 ± 1 Ma, Mao et al, ), Banzhusi (129 ± 1 Ma, Liang et al, ) pluton, and many granitic dikes (Deng et al, ), intruded into the Taihua Supergroup and the Xiong'er Group. Among these granitoids, the Haoping intrusion (135.4–134.0 Ma, Mao et al, ; Li, ) is related to Pb–Zn mineralization (134.9 ± 0.8 Ma, Ye, ), while the Leimengou (131.0 ± 0.6 Ma, Cao et al, ) and Shiyaogou (134.3–132.8 Ma, Han et al, ) granitic rocks coincide with porphyry Mo mineralization (132.4 ± 1.9 Ma, Li et al, ; 135.2 ± 1.8 Ma, Gao et al, ).…”

Section: Geological Backgroundmentioning

confidence: 99%

Geochronology and fluid source constraints of the Songligou gold‐telluride deposit, western Henan Province, China: Analysis of genetic implications

et al. 2019

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The Songligou gold‐telluride deposit, located in Songxian County, western Henan Province, China, is one of many gold‐telluride deposits in the Xiaoqinling‐Xiong'ershan district. Gold orebodies occur within the Taihua Supergroup and are controlled by the WNW F101 Fault, and the fault was cut across by a granite porphyry dike. Common minerals in gold orebodies include quartz, chlorite, epidote, K‐feldspar, calcite, fluorite, sericite, phlogopite, bastnasite, pyrite, galena, chalcopyrite, sphalerite, tellurides, gold, bismuthinite, magnetite, and hematite, and pyrite is the dominant sulfide. Four mineralization stages are recognized, including pyrite‐quartz stage (I), quartz‐pyrite stage (II), gold‐telluride stage (III), and quartz‐calcite stage (IV). This work reports the Rb–Sr age of gold‐telluride‐bearing pyrite and zircon U–Pb age of granite porphyry, as well as S isotope data of pyrite and galena. The pyrite Rb–Sr isochron age is 126.6 ± 2.3 Ma (MSWD = 1.8), and the average zircon U–Pb age of granite porphyry is 166.8 ± 4.1 Ma (MSWD = 4.9). (87Sr/86Sr) i values of pyrite and δ34S values of sulfides vary from 0.7104 to 0.7105 and −11.84 to 0.28‰, respectively. The obtained Rb–Sr isochron age represents the ore formation age of the Songligou gold‐telluride deposit, which is much younger than the zircon U–Pb age of the granite porphyry. Strontium and S isotopes, together with the presence of bastnaesite, suggest that the ore‐forming fluid was derived from felsic magmas with input of a mantle component and subsequently interacted with the Taihua Supergroup. Tellurium was derived from metasomatized mantle and was related to the subduction of the Shangdan oceanic crust and Izanagi plate beneath the North China Craton (NCC). This deposit is a part of the Early Cretaceous large‐scale gold mineralization in east NCC and formed in an extensional tectonic setting.

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U–Pb and Re–Os isotopic systematics and zircon Ce4+/Ce3+ ratios in the Shiyaogou Mo deposit in eastern Qinling, central China: Insights into the oxidation state of granitoids and Mo (Au) mineralization

Cited by 79 publications

References 102 publications

The Luanchuan Mo–W–Pb–Zn–Ag magmatic–hydrothermal system in the East Qinling metallogenic belt, China: Constrains on metallogenesis from C–H–O–S–Pb isotope compositions and Rb–Sr isochron ages

The Luanchuan Mo–W–Pb–Zn–Ag magmatic–hydrothermal system in the East Qinling metallogenic belt, China: Constrains on metallogenesis from C–H–O–S–Pb isotope compositions and Rb–Sr isochron ages

The formation of the Caosiyao giant porphyry Mo deposit on the northern margin of the North China Craton: Constraints from U―Pb and Re―Os geochronology, whole‐rock geochemistry, Hf isotopes, and oxygen fugacity of the magma

Geochronology and fluid source constraints of the Songligou gold‐telluride deposit, western Henan Province, China: Analysis of genetic implications

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