Precise molybdenite Re–Os and mica Ar–Ar dating of the Mesozoic Yaogangxian tungsten deposit, central Nanling district, South China

Peng, Jiantang; Zhou, Mei‐Fu; Hu, Ruizhong; Shen, Nengping; Yuan, Songliu; Bi, Xian‐Wu; Du, Andao; Qü, Wenjun

doi:10.1007/s00126-006-0084-4

Cited by 208 publications

(53 citation statements)

References 33 publications

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“…As shown in previous studies (Yu and Mao, 2004;Peng et al, 2006), there may be reliable 40 Ar/ 39 Ar ages for hydrothermal ore deposits under some appropriate conditions. Twelve and fifteen heating steps at temperatures of 450-1,300 o C and 450-1,360 o C were performed for samples ST201001 and ST201005-1, respectively.…”

Section: Muscovite 40 Ar-39 Ar Agessupporting

confidence: 61%

“…This does not differ greatly from Mao et al's (2007) two stages of W-Sn mineralization in the region: Late Jurassic-Early Cretaceous or 165-150 Ma, and Mid-Cretaceous or 130-90 Ma. A recently increasing number of isotopic datings define an accurately narrow age interval of 165-145 Ma, for a majority of W-Sn deposits there, which are in correspondence with intense Late Jurassic magmatic activity (Table 5) (Li et al, 1996(Li et al, , 2014aPeng et al, 2006;Fu et al, 2007Fu et al, , 2008Feng et al, 2007aFeng et al, , 2007bTan et al, 2007;Yao et al, 2007;Yuan et al, 2007Yuan et al, , 2012Liu et al, 2008bLiu et al, , 2012Yang et al, 2009aYang et al, , 2009bZhang et al, 2009;Zou et al, 2009;Wang et al, 2010a;Zhai et al, 2010;Guo et al, 2011;Qi et al, 2012). The close relationship between the Xitian deposit and the Early Yanshanian granites, as discussed in the previous subsection, is a good example of this relationship.…”

Section: Ages Of Magmatism and Mineralizationmentioning

confidence: 97%

“…9; Table 5; Peng et al, 2006Peng et al, , 2008Yao et al, 2007;Fu et al, 2007Fu et al, , 2008Feng et al, 2007aFeng et al, , 2007bYuan et al, 2007Yuan et al, , 2012Liu et al, 2008bLiu et al, , 2012Yang et al, 2009aYang et al, , 2009bZhang et al, 2009;Zou et al, 2009;Wang et al, 2010a;Zhai et al, 2010;Guo et al, 2011;Qi et al, 2012;Li et al, 2014a). In the Xitian area, the Early Yanshanian granites, genetically related to W-Sn mineralization, are identified as A 2 -type (Zhou et al, 2013(Zhou et al, , 2015.…”

Section: Geodynamics For W-sn Metallogenymentioning

confidence: 99%

“…It mainly occurs at the contact between the Late Devonian dolomitic limestone and the Late Jurassic (Yanshanian) granitoid, with 750, 000 t WO 3 , 490, 000 t Sn, 300, 000 t Bi, 130, 000 t Mo and 200, 000 t Be (Lu et al, 2003). Mining activities have been carried out in the Nanling region for several tens of years, but there remains an untouched reserve of 1.7 million tons of tungsten and 1.2 million tons of tin (Che et al, 2005;Peng et al, 2006;Zaw et al, 2007;USGS, 2016). Ore Geology Reviews 78 (2016) [85][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100] The Xitian W-Sn polymetallic deposit in eastern Hunan Province is one of the largest newly-discovered deposits during the latest phase of exploration (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011) in the Nanling region, an area with a great potential for W and Sn resources Fu et al, 2009Fu et al, , 2012 (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Zircon U–Pb, molybdenite Re–Os and muscovite Ar–Ar isotopic dating of the Xitian W–Sn polymetallic deposit, eastern Hunan Province, South China and its geological significance

Liang

Dong

Jiang

et al. 2016

Ore Geology Reviews

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The Xitian tungsten-tin (W-Sn) polymetallic deposit, located in eastern Hunan Province, South China, is a recently explored region containing one of the largest W-Sn deposits in the Nanling W-Sn metallogenic province. The mineral zones in this deposit comprise skarn, greisen, structurally altered rock and quartz-vein types. The deposit is mainly hosted by Devonian dolomitic limestone at the contact with the Xitian granite complex. The Xitian granite complex consists of Indosinian (Late Triassic, and Yanshanian (Late Jurassic-Early Cretaceous, 165-141 Ma) granites. Zircons from two samples of the Xitian granite dated using laser ablationinductively coupled mass spectrometer (LA-ICPMS) U-Pb analysis yielded two ages of 225.6 ± 1.3 Ma and 151.8±1.4 Ma, representing the emplacement ages of two episodic intrusions of the Xitian granite complex. Molybdenites separated from ore-bearing quartz-veins yielded a Re-Os isochron age of 149.7±0.9 Ma, in excellent agreement with a weighted mean age of 150.3±0.5 Ma. Two samples of muscovites from ore-bearing greisens yielded 40 Ar/ 39 Ar plateau ages of 149.5±1.5 Ma and 149.4±1.5 Ma, respectively. These isotopic ages obtained from hydrothermal minerals are slightly younger than the zircon U-Pb age of 151.8±1.4 Ma of the Yanshanian granite in the Xitian area, indicating that the W-Sn mineralization is genetically related to the Late Jurassic magmatism. The Xitian deposit is a good example of the Early Yanshanian regional W-Sn ore-forming event (160-150 Ma) in the Nanling region. The relatively high Re contents (8.7 to 44.0 ppm, average of 30.5 ppm) in molybdenites suggest a mixture of mantle and crustal sources in the genesis of the ore-forming fluids and melts. Based upon previous geochemical studies of Early Yanshanian granite and regional geology, we argue that the Xitian W-Sn polymetallic deposit can be attributed to back-arc lithosphere extension in the region, which was probably triggered by the break-off of the flat-slab of the Palae-Pacific plate beneath the lithosphere.

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Section: Muscovite 40 Ar-39 Ar Agessupporting

confidence: 61%

Section: Ages Of Magmatism and Mineralizationmentioning

confidence: 97%

Section: Geodynamics For W-sn Metallogenymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Zircon U–Pb, molybdenite Re–Os and muscovite Ar–Ar isotopic dating of the Xitian W–Sn polymetallic deposit, eastern Hunan Province, South China and its geological significance

Liang

Dong

Jiang

et al. 2016

Ore Geology Reviews

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“…SE China is rich in mineral resources with a wide diversity of deposit types, that is, porphyry/skarn Cu-(Au), stratabound/skarn Pb-Zn-Ag, greisen/quartz-vein W-Sn, U, Nb-Ta, REE, Sb, and Hg, etc. (Chen et al 1992;Pei et al 1999;Jin et al 2002;Hua et al 2003;Li et al 2004b;Jiang et al 2006b;Peng et al 2006;Wang et al 2006;Li and Sasaki 2007;Li et al 2007aLi et al , 2007dYao et al 2007;Yuan et al 2007;Zaw et al 2007). Most of these deposits formed in the late Mesozoic related to the Yanshanian (Jurassic to Cretaceous) magmatism, which is generally attributed to the subduction of the Downloaded by [Guangzhou Institute of Geochemistry] at 00:00 09 February 2012 Pacific plate Zaw et al 2007).…”

Section: International Geology Reviewmentioning

confidence: 99%

Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate

Wang

Ling

Ding

et al. 2010

International Geology Review

190

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Mesozoic multi‐stage W–Sn polymetallic mineralization in the Nanling Range, South China: An example from the Dengfuxian–Xitian ore field

Sun

Algeo

et al. 2018

Geological Journal

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The Dengfuxian and Xitian ore fields, located in the central Nanling Range of South China, are characterized by multi‐stage W–Sn polymetallic mineralization. In this study, whole‐rock and zircon compositions in altered granites from four typical deposits in these ore fields (i.e., Dalong Pb–Zn, Xiangdong W, Gaolong fluorite, and Shaiheling Sn–Pb–Zn) were studied to constrain their fluid chemistry and mineralization history. Compared to unaltered granites at Dengfuxian and Xitian, these fluid‐altered granites are characterized by more variable SiO2 (64.2–78.4%) and lower TiO2 (0.02–0.12%), CaO (0.25–1.2%), and Na2O (0.31–2.6%) concentrations, lower ΣREE (87–156 ppm), and higher Zr/Hf (11.1–31.6) and Y/Ho (31.1–53.4) ratios, suggesting intense F‐rich fluid metasomatism. Zircon cathodoluminescence (CL), transmitted light and back‐scattered electron (BSE) imaging, laser ablation multi‐collector inductively coupled plasma mass spectrometry (LA‐MC‐ICP‐MS) trace‐element analysis, U–Pb dating, and Hf isotopes revealed a sequence of three W–Sn polymetallic mineralization stages: a Triassic stage (~220 Ma), a Jurassic stage (~150 Ma), and a Cretaceous stage (~80 Ma). The Triassic episode was associated with a highly fractionated granitic magma derived from the lower crust and contaminated by basement rocks; the magmatic fluid was affected by a high 176Hf/177Hf component from the ~770‐Ma basement and probably precipitated under high F and high fO2 conditions. The Jurassic episode was related to mantle–crust interaction and resulted in large‐scale W–Sn mineralization at decreased fO2. The Cretaceous episode was marked by Sn mineralization in a lithospheric extensional setting. We infer that basement rocks were the major source of metals for the world‐class W–Sn ore deposits in the Nanling Range of South China. This study also demonstrates that whole‐rock geochemistry of hydrothermally altered granites in combination with Lu–Hf isotopic, U–Pb dating, and trace element analyses of magmatic and hydrothermal zircons can be a useful approach to recognition of multi‐stage magmatic and mineralization processes.

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Precise molybdenite Re–Os and mica Ar–Ar dating of the Mesozoic Yaogangxian tungsten deposit, central Nanling district, South China

Cited by 208 publications

References 33 publications

Zircon U–Pb, molybdenite Re–Os and muscovite Ar–Ar isotopic dating of the Xitian W–Sn polymetallic deposit, eastern Hunan Province, South China and its geological significance

Zircon U–Pb, molybdenite Re–Os and muscovite Ar–Ar isotopic dating of the Xitian W–Sn polymetallic deposit, eastern Hunan Province, South China and its geological significance

Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate

Mesozoic multi‐stage W–Sn polymetallic mineralization in the Nanling Range, South China: An example from the Dengfuxian–Xitian ore field

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