Single grain Rb-Sr dating of euhedral and cataclastic pyrite from the Qiyugou gold deposit in western Henan, central China

Han, Yingjie; Li, Xianghui; Zhang, Shihong; Yuan-hou, Zhang; Chen, FuKun

doi:10.1007/s11434-007-0248-3

Cited by 31 publications

(12 citation statements)

References 16 publications

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“…Except the enrichment of Te in the Songligou gold‐telluride deposit, Te‐rich hydrothermal fluid played an important role in the Xiaoqinling‐Xiong'ershan district from Late Triassic to Early Cretaceous, which indicated that there could be an enriched source of Te in this district. Tellurides were not only found in Late Cretaceous gold deposit, for example, Qiyugou (Shao & Luan, ; Wang et al, ; Han et al, ), Yangzhaiyu (Li et al, ; Jian et al, ), Wenyu (Li et al, ; Zhao et al, ), and Fancha (Li et al, ; Ren, ) gold deposit. Besides, tellurides were also found in the Early Cretaceous Jinduicheng porphyry Mo deposit (Stein, Markey, Morgan, Du, & Sun, ; Sun et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…From west to east, four primary NE‐trending faults, namely, the Tieluping Fault, Kangshan‐Shanggong Fault, Hongzhuang‐Qinggangping Fault, and Taocun‐Maoyuan Fault, and the EW‐trending Machaoying Fault control the distribution of lode gold deposits in this region. Besides, the Qiyugou gold deposit (126 ± 11 Ma, Han, Li, Zhang, Zhang, & Chen, ; 125–115 Ma, Wang, Mao, & Lu, ) is regarded as an intrusion‐related cryptoexplosion breccia pipe‐type gold deposit (Chen, Pirajno, Li, Guo, & Lai, ).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Except the enrichment of Te in the Songligou goldtelluride deposit, Te-rich hydrothermal fluid played an important role in the Xiaoqinling-Xiong'ershan district from Late Triassic to Early Cretaceous, which indicated that there could be an enriched source of Te in this district. Tellurides were not only found in Late Cretaceous gold deposit, for example, Qiyugou (Shao & Luan, 1989;Wang et al, 2001;Han et al, 2007), Yangzhaiyu (Li et al, 2012c;Jian et al, 2014), Wenyu Zhao et al, 2012), and Fancha Ren, 2012) gold F I G U R E 1 7 Gold-bearing quartzpyrite veins cutting across granite porphyry intrusions in the Shangzhuang (a) and Gongyu (b) gold deposits. Abbreviations: Py = Pyrite; Qtz = Quartz deposit.…”

Section: Sources Of Telluriummentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Sources Of Telluriummentioning

confidence: 99%

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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 Rb-Sr isotopic dating of ore sulfides represents a direct way to determine the hydrothermal mineralization age (Nakai et al, 1993;Nebel et al, 2011). With the advance of high-precision mass spectrometry with low detection limit, the technique is now widely applicable in dating hydrothermal minerals (Cao et al, 2015;Hu et al, 2015;Yang et al, 2017) such as sphalerite (Ostendorf et al, 2015;Rosa et al, 2016) and pyrite (Yang & Zhou, 2001;Han et al, 2007;Li et al, 2008;Wang et al, 2014c). The fact that 87 Sr/ 86 Sr ratios do not vary with 1/Sr values (Fig.…”

Section: Timing Of the Pb-zn Mineralizationmentioning

confidence: 99%

Genesis of Pb–Zn Mineralization Beneath the Xiangshan Uranium Orefield, South China: Constraints from H–O–S–Pb Isotopes and Rb–Sr Dating

Guo

Nie

et al. 2018

Resource Geology

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The volcanic‐hosted Xiangshan uranium orefield is the largest uranium deposit in South China. Recent exploration has discovered extensive Pb–Zn mineralization beneath the uranium orebodies. Detailed geological investigation reveals that the major metallic minerals include pyrite, sphalerite, galena, and chalcopyrite, whilst the major non‐metallic minerals include quartz, sericite, and calcite. New δ18Ofluid and δDfluid data indicate that the ore‐forming fluids were mainly derived from magmatic, and the sulfide δ34S values (2.2–6.9‰) suggest a dominantly magmatic sulfur source. The Pb isotope compositions are homogeneous (206Pb/204Pb = 18.120–18.233, 207Pb/204Pb = 15.575–15.698, and 208Pb/204Pb = 37.047–38.446). The 87Sr/86Sr ratios of sulfide minerals range from 0.7197 to 0.7204, which is much higher than volcanic rocks and fall into the range of metamorphic basement. Lead and strontium isotopic compositions indicate that the metallogenic materials probably were derived from metamorphic basement. Pyrite Rb–Sr dating of the ores yielded 131.3 ± 4.0 Ma, indicating that the Pb–Zn mineralization occurred in the Early Cretaceous.

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“…Single mica grains (i.e., detrital muscovite and biotite) were used for Rb-Sr dating. The single-grain or microsample technique was recently developed and, so far, has been explored for dating micas from magmatic and metamorphic rocks (Müller et al, 2000a, b;Li et al, 2005), sulfide minerals from ore deposits (Li et al, 2008a;Han et al, 2007), and foraminifera from marine sediments (Tong et al, 2006). In the present study we show that the single-mica grain Rb-Sr analytical technique is a potential tool to study the origin of detrital minerals and the provenance of geological terranes.…”

Section: Introductionmentioning

confidence: 99%

Single-grain detrital muscovite Rb-Sr isotopic composition as an indicator of provenance for the Carboniferous sedimentary rocks in northern Dabie, China

et al. 2009

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Low-grade metamorphic Paleozoic sedimentary rocks are exposed along the northern margin of the Qinling-Dabie orogenic belt that formed by the collision of the North and South China blocks during the Early Mesozoic. Geological provenance and tectonic setting of these low-grade sedimentary rocks are strongly debated. Recent studies have shown that they contain Paleozoic, Late Proterozoic and Late Archean detrital zircons, which points to an origin from different sources including rocks from the South and North China blocks. This study presents single-grain mineral Rb-Sr results for detrital muscovites and biotites from Carboniferous sedimentary sequences of the Beihuaiyang low-grade metamorphic zone exposed along the northern margin of the Dabie Mountains. About 15% of detrital muscovite grains are phengitic in composition with high Si/Al ratios of >3.3. Single grain Rb-Sr isotopic analyses show that both muscovites and phengites give a pooled age of about 420 Ma, implying Middle Paleozoic thermal and high-pressure metamorphic events in the source area(s). Rb-Sr isotopic evidence from detrital biotites suggests at least two different sedimentary sources of old crustal rocks and juvenile material. The latter probably comprised magmatic rocks related to the Paleozoic convergence along the southern margin of the North China block. Whole-rock Sm-Nd isotopic composition of the sedimentary rocks also demonstrates a mixture of sedimentary sources of different ages that confirm conclusions proposed previously from evidence of detrital zircon ages. We conclude that the Paleozoic detrital phengites originate from Paleozoic subduction and subsequent collision proposed for the North Qinling terrane. Our study shows that, single-grain detrital mica Rb-Sr isotopic characteristics can be a potential indicator for the provenance of geological complex terranes.

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Single grain Rb-Sr dating of euhedral and cataclastic pyrite from the Qiyugou gold deposit in western Henan, central China

Cited by 31 publications

References 16 publications

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

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

Genesis of Pb–Zn Mineralization Beneath the Xiangshan Uranium Orefield, South China: Constraints from H–O–S–Pb Isotopes and Rb–Sr Dating

Single-grain detrital muscovite Rb-Sr isotopic composition as an indicator of provenance for the Carboniferous sedimentary rocks in northern Dabie, China

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