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Molybdenite Re/Os dating, zircon U–Pb age and geochemistry of granitoids in the Yangchuling porphyry W–Mo deposit (Jiangnan tungsten ore belt), China: Implications for petrogenesis, mineralization and geodynamic setting

Published on Aug 1, 2017in Lithos 3.91
· DOI :10.1016/j.lithos.2017.05.023
Jingwen Mao33
Estimated H-index: 33
,
Bikang Xiong2
Estimated H-index: 2
+ 5 AuthorsPan Dai1
Estimated H-index: 1
Cite
Abstract
Abstract The Yangchuling W–Mo deposit, located in the Jiangnan porphyry–skarn (JNB) tungsten ore belt, is the first recognized typical porphyry W–Mo deposit in China in the 1980's. Stockworks and disseminated W–Mo mineralization occur in the roof pendant of a 0.3 km 2 monzogranitic porphyry stock that intruded into a granodiorite stock, hosted by Neoproterozoic phyllite and slate. LA-ICPMS zircon U–Pb analyses suggest that of the monzogranitic porphyry and granodiorite were formed at 143.8 ± 0.5 Ma and 149.8 ± 0.6 Ma, respectively. Six molybdenite samples yielded a Re–Os weighted mean age of 146.4 ± 1.0 Ma. Geochemical data show that both granodiorite and monzogranitic porphyry are characterized by enrichment of large ion lithophile elements (LILE) relative to high field strength elements (HFSE), indicating a peraluminous nature (A/CNK = 1.01–1.08). Two granitoids are characterized by a negative slope with significant light REE/heavy REE fractionation [(La/Yb) N  = 8.38–23.20] and negative Eu anomalies (Eu/Eu* = 0.69–0.76). The P 2 O 5 contents of the Yangchuling granitoids range from 0.12% to 0.17% and exhibit a negative correlation with SiO 2 , reflecting that they are highly fractionated I-type. They have high initial 87 Sr/ 86 Sr ratios (0.7104–0.7116), low negative e Nd (t) (− 5.05 to − 5.67), and homogeneous e Hf (t) between − 1.39 and − 2.17, indicating similar sources. Additionally, two-stage Nd model ages (T DM2 ) of ~ 1.3–1.4 Ga and two-stage Hf model ages (T DM2 ) of ~ 1.2–1.3 Ga are consistent, indicating that Neoproterozoic crustal rocks of the Shuangqiaoshan Group could have contributed to form the Yangchuling magmas. Considering the two groups of parallel Late Mesozoic ore belts, namely the Jiangnan porphyry–skarn tungsten belt (JNB) in the south and the Middle–Lower Yangtze River porphyry–skarn Cu–Au–Mo–Fe ore belt (YRB) in the north, the Nanling granite-related W–Sn ore belt (NLB) in the south, the neighboring Qin–Hang porphyry–skarn Cu–Mo–hydrothermal Pb–Zn–Ag ore belt (QHB) in the north, as well as the Southeastern Coast porphyry–skarn Cu–Mo–Au ore belt (SCB) recognized in South China in this paper, we propose that the latest Jurassic to earliest Cretaceous granitoids and associated ores were formed during a tearing of the subducting Izanagi slab. This tearing of the subduction slab caused the upwelling of asthenosphere and the resulting mantle–crust interaction. The granitoid-related W ore systems in JNB resulted from the remelting of the Proterozoic crust. The mafic–ultramafic volcanic rocks of the Shuangqiaoshan Group intercalated with phyllite and slate, ophiolitic melange and magmatic arc rocks, mainly comprising I-type granite, basalt, andesite, rhyolite, pyroclastics, together with subduction-related metasomatized lithospheric mantle, would have provided additional mantle material. In this case, the partial melting of rocks of the Shuangqiaoshan Group can produce S-, I- and transitional type granitoids. After strong differentiation it formed tungsten-bearing granitoids characterized by enrichment of high alkali, silicon and volatile components. In the Yangchuling mine area the small monzogranitic porphyry stock has stronger fractionation, volatile content and ore-forming components than the older granodiorite, resulting in the development of the porphyry W–Mo ore system.
  • References (110)
  • Citations (22)
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References110
Newest
Published on Mar 1, 2017in Mineralium Deposita 3.40
Bin Xu5
Estimated H-index: 5
(NU: Nanjing University),
Shao-Yong Jiang40
Estimated H-index: 40
(China University of Geosciences)
+ 2 AuthorsLiang Ma7
Estimated H-index: 7
(NU: Nanjing University)
The Pengshan Sn and Pb-Zn polymetallic deposits are located in the south margin of the Jiujiang-Ruichang (Jiurui) district of the Middle-Lower Yangtze River Metallogenic Belt in South China. Four large deposits include Huangjinwa, Zengjialong, Jianfengpo, and Zhangshiba, the former three are Sn-dominant deposits which occur as stratiform orebodies in the contact zones of the Pengshan granites and within the country rock strata, whereas Zhangshiba consists of stratiform Pb-Zn orebodies within the...
Published on Jan 1, 2017in Ore Geology Reviews 3.39
Yanwen Tang3
Estimated H-index: 3
(CAS: Chinese Academy of Sciences),
Xiaofeng Li7
Estimated H-index: 7
(CAS: Chinese Academy of Sciences)
+ 4 AuthorsCheng Huang2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences)
The genesis of adakites and associated Mo–Cu mineralization in non–arc settings in China is poorly constrained. Here, we present geochronology, geochemistry and Sr–Nd–Pb isotopes for the Tongcun intrusive complex, and report Pb isotopes and 40Ar–39Ar age for the Tongcun Mo–Cu deposit. The Tongcun intrusive complex is composed mainly by granodiorite and monzogranite (phase 1 and phase 2), with emplacement age of 160 Ma to 148 Ma. The Tongcun complex can be classified as typical high–K calc–alkali...
Published on Nov 1, 2016in Lithos 3.91
Bin Li7
Estimated H-index: 7
(CSU: Central South University),
Shao-Yong Jiang40
Estimated H-index: 40
(China University of Geosciences)
+ 3 AuthorsTao Yang12
Estimated H-index: 12
(NU: Nanjing University)
Abstract The Gutian porphyry Cu–Mo deposit is a newly proved porphyry copper deposit in the coastal South China associated with granodioritic porphyries. In this study, zircon U–Pb ages and Hf isotope data, as well as geochemical and Sr–Nd–Pb–Re–Os isotopic compositions, are reported for these intrusions and minerals. Both zircon U–Pb and molybdenite Re–Os dating suggest that the Gutian granodiorite porphyries and related mineralization formed at ~ 160 Ma. The Gutian granodiorites show a low-Mg ...
Published on Sep 1, 2016in Lithos 3.91
Bin Li7
Estimated H-index: 7
(CSU: Central South University),
Shao-Yong Jiang40
Estimated H-index: 40
(China University of Geosciences)
+ 3 AuthorsMing-Lan Hou1
Estimated H-index: 1
Abstract Comprehensive petrological, in situ zircon U–Pb dating, Ti-in-zircon temperature and Hf isotopic compositions, whole rock geochemical and Sr–Nd isotopic data are reported for the Jintonghu monzonitic intrusions in the western Fujian Province (Interior Cathaysia Block), South China. The Jintonghu monzonitic intrusions were intruded at 95–96 Ma. Their Sr–Nd–Hf isotopic compositions are similar to the coeval and nearby enriched lithospheric mantle-derived mafic and syenitic rocks, indicati...
Published on Dec 1, 2015in Ore Geology Reviews 3.39
Yanwen Tang3
Estimated H-index: 3
(CAS: Chinese Academy of Sciences),
Xiaofeng Li7
Estimated H-index: 7
(CAS: Chinese Academy of Sciences)
+ 6 AuthorsRongchao Yin2
Estimated H-index: 2
Abstract The Linghou deposit, located near Hangzhou City of Zhejiang Province, eastern China, is a medium-sized polymetallic sulfide deposit associated with granitic intrusion. This deposit is structurally and lithologically controlled and commonly characterized by ore veins or irregular ore lenses. In this deposit, two mineralization events were identified, of which the former produced the Cu–Au–Ag orebodies, while the latter formed Pb–Zn–Cu orebodies. Silicification and calc-silicate (skarn ty...
Published on Oct 1, 2015in Ore Geology Reviews 3.39
Shenghua Wu1
Estimated H-index: 1
(China University of Geosciences),
Jingwen Mao33
Estimated H-index: 33
+ 2 AuthorsBikang Xiong1
Estimated H-index: 1
(China University of Geosciences)
Abstract The recently discovered Longtougang skarn and hydrothermal vein Cu–Zn deposit is located in the North Wuyi area, southeastern China. The intrusions in the ore district comprise several small porphyritic biotite monzonite, porphyritic monzonite, and porphyritic granite plutons and dikes. The mineralization is zoned from a lower zone of Cu-rich veins and Cu–Zn skarns to an upper zone of banded Zn–Pb mineralization in massive epidote altered rocks. The deposit is associated with skarn, pot...
Published on Sep 1, 2015in Gondwana Research 6.48
Zhihao Mao4
Estimated H-index: 4
(China University of Geosciences),
Jiajun Liu18
Estimated H-index: 18
(China University of Geosciences)
+ 6 AuthorsXiaohong Luo3
Estimated H-index: 3
(NU: Northwestern University)
Abstract Porphyry and skarn deposits in the middle Yangtze Valley within the Northern Yangtze Craton have a combined tungsten resource of ~ 3 million tonnes (Mt) and represent one of the most important tungsten regions in the world. The Dahutang porphyry tungsten deposit, with reserves of > 1 Mt, is one of the largest deposits. Uranium–Pb analyses for the ore-related granitoids yield ages of 147.4 ± 0.58 Ma–148.3 ± 1.9 Ma for porphyritic biotite granite, 144.7 ± 0.47 Ma–146.1 ± 0.64 Ma for fine-...
Published on Mar 1, 2015in Ore Geology Reviews 3.39
Weidong Sun47
Estimated H-index: 47
(CAS: Chinese Academy of Sciences),
Ruifang Huang6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences)
+ 8 AuthorsRobert E. Zartman30
Estimated H-index: 30
(CAS: Chinese Academy of Sciences)
Abstract Porphyry deposits supply most of the world's Cu and Mo resources. Over 90% of the porphyry deposits are found at convergent margins, especially above active subduction zones, with much fewer occurrences at post-collisional or other tectonic settings. Porphyry Cu–(Mo)–(Au) deposits are essentially magmatic–hydrothermal systems, which are generally initiated by injection of oxidized magmas saturated with metal-rich aqueous fluids, i.e., the parental magmas need to be water rich and oxidiz...
Published on Jan 1, 2015in Rock and Mineral Analysis
Wang Xian-guan1
Estimated H-index: 1
Zhuxi W-Cu deposit in northern Jiangxi Province is a recently found super large skarn W deposit. The formation of this deposit is closely related to granitic intrusions. The mining area is located in the central Jiangxi Taqian-Fuchun ore belt in Qin( zhou)-Hang( zhou) joint zone. The discovery of this deposit is further evidence for the model of the Southern tungsten North expansion. However,due to the lack of systematic geochemistry and geochronology of ore-related intrusions,the knowledge of t...
Published on Aug 1, 2014in Lithos 3.91
Lan-Chun Huang1
Estimated H-index: 1
(NU: Nanjing University),
Shao-Yong Jiang40
Estimated H-index: 40
(China University of Geosciences)
Abstract The Dahutang deposit is a newly discovered tungsten deposit, which is within the largest ones in the world with an estimated WO 3 reserve of 2 million tones. W-mineralization is considered to be related with the Late Mesozoic granites in the district. However, the precise emplacement ages, sources of these granites, and their relationship with mineralization are not well understood. In this study, four mineralization-related granite bodies (G1 to G4) were identified in the Dahutang mini...
Cited By22
Newest
Published in Minerals 2.25
The newly discovered Magushan Cu-Mo polymetallic deposit, located in southeastern Anhui, eastern China, is a middle-scale skarn-type polymetallic deposit with different ore types of veinlets-disseminated skarn (the primary type), quartz veins, and porphyry. LA-ICP-MS zircon U–Pb analyses yielded a crystallization age of 135.7 ± 1.5 Ma for the ore-related granodiorite in Magushan. The granodiorites are I-type granites in nature, characterized by metaluminous and high-K calc-alkaline characteristi...
Published on May 1, 2019in Ore Geology Reviews 3.39
Xiaoxia Duan12
Estimated H-index: 12
(Hefei University of Technology),
Xiao-xia Duan + 3 AuthorsZhen Zhang
Abstract In this study, we explore the chemistry of accessory apatite and zircon as tools to monitor the petrogenetic and metallogenetic processes involved in the formation of the Wushan Cu- and Zhuxiling W (Mo)-mineralization related granodiorite porphyry. The Wushan granitoids are metaluminous with A/CNK of 0.88−1.01, and the Zhuxiling intrusions are weakly peraluminous with higher A/CNK values (1.02−1.12). The Wushan granitoids have e Nd (t) values of -4.6∼-4.7, which, combined with the relat...
Published on Jun 1, 2019in Journal of Asian Earth Sciences 2.76
Xiong Yan (NU: Nanjing University), Shao-Yong Jiang40
Estimated H-index: 40
(China University of Geosciences)
Abstract Potassic igneous rocks, such as shoshonitic rocks, are an important constituent of young volcanic-intrusive suites in varied tectonic settings. The genesis of these rocks is related to tectonic environments and is thus important for tectonic reconstruction of ancient terranes. Here we report zircon U–Pb and Hf isotopes and whole-rock geochemical compositions for shoshonitic quartz syenites from Madi and Chashan in the northern Wuyi Mt Range, southeast China. LA-ICP-MS zircon U-Pb dating...
Published on Jun 1, 2019in Ore Geology Reviews 3.39
Shenghua Wu1
Estimated H-index: 1
(CAS: Chinese Academy of Sciences),
Jingwen Mao33
Estimated H-index: 33
+ 4 AuthorsWeidong Sun47
Estimated H-index: 47
(CAS: Chinese Academy of Sciences)
Abstract Scheelite has been analyzed from the Shizhuyuan and the Xianglushan world-class W deposits from the Nanling W–Sn region and Jiangnan W belt, respectively. The Shizhuyuan deposit consists of proximal skarn and greisen W–Sn–Mo–Bi and distal Pb–Zn–Ag veins. The Xianglushan deposit, contains layer-like sulfide–scheelite and skarn W orebodies on granite cupolas overprinted by W greisen veins. Scheelite in skarn ores from the Shizhuyuan contains higher concentrations of Mo than those in the s...
Published on Jun 1, 2019in Ore Geology Reviews 3.39
Lulu Yuan , Guoxiang Chi20
Estimated H-index: 20
+ 6 AuthorsMingyue Hu
Abstract The Zhuxi W deposit in Jiangxi, South China, with a resource of 2.86 Mt W and an average grade of 0.54% WO 3 , is the largest W deposit in the world. The deposit occurs at the contact between a late Mesozoic granitic intrusion and Carboniferous – Permian carbonate rocks and Neoproterozoic metamorphic rocks. The ores are divided into three types: skarn ore (dominant), sulfide ore and greisen ore. Based on occurrences and petrographic relationships, scheelite (the dominant ore mineral) is...
Published on Apr 16, 2019in Minerals 2.25
Hinyuen Tsang , Jingya Cao , Xiaoyong Yang19
Estimated H-index: 19
The Chaoyangzhai gold deposit is one of the newly discovered medium to large scale turbidite-hosted gold deposits in Southeast Guizhou, South China. In this study, laser ablation-inductively coupled plasma-mass spectrometer (LA-ICP-MS) zircon U–Pb dating on the tuffaceous- and sandy-slates of Qingshuijiang Formation, Xiajiang Group, and gold-bearing quartz vein yielded similar age distributions, indicating that zircon grains in gold-bearing quartz vein originated from the surrounding tuffaceous-...
Published on Apr 1, 2019in Ore Geology Reviews 3.39
Shenghua Wu1
Estimated H-index: 1
(CAS: Chinese Academy of Sciences),
Weidong Sun47
Estimated H-index: 47
(CAS: Chinese Academy of Sciences),
Xudong Wang2
Estimated H-index: 2
(NU: Northeastern University)
Abstract The Dongyuan deposit, in the recently identified world-class porphyry–skarn W metallogenic belt, east Jiangnan Orogen, China, is characterized by a set of nearly parallel and horizontal multi-cycle orebodies within cupolas of porphyritic granodiorite. Almost every orebody from the top to the bottom shows similar vertical changes in vein morphology and mineral assemblage from ≤1 cm quartz–feldspar–scheelite–calcite veins to 1–2 cm quartz–feldspar–muscovite–scheelite veins to 2–5 cm quart...
Published on Apr 1, 2019in Mineralium Deposita 3.40
Shiwei Song1
Estimated H-index: 1
(PKU: Peking University),
Jingwen Mao33
Estimated H-index: 33
(PKU: Peking University)
+ 5 AuthorsYongpeng Ouyang2
Estimated H-index: 2
The Zhuxi W (Cu) skarn deposit is the largest W deposit in the Jiangnan porphyry–skarn tungsten belt in South China, and is also among the largest deposit of this type in the world. Titanite is a common mineral in the Zhuxi deposit, and occurs in three textural settings: titanite I associated with retrograde-altered exoskarn with weak mineralization; titanite II in retrograde-altered endoskarn with disseminated Cu ore; and titanite III from altered granite with disseminated W ore. Here, we prese...
Published on Feb 1, 2019in Ore Geology Reviews 3.39
Wen-Feng Wei3
Estimated H-index: 3
(CAS: Chinese Academy of Sciences),
Ruizhong Hu36
Estimated H-index: 36
(CAS: Chinese Academy of Sciences)
+ 4 AuthorsJie-Hua Yang6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences)
Abstract The Xihuashan tungsten ore deposit in the central Nanling region, South China is a vein-type hydrothermal deposit associated with the Late Jurassic granitoids that were previously thought to be the products of crustal anatexis alone. In this study, we use helium (He) and argon (Ar) isotopes of fluid inclusions entrapped in pyrite and arsenopyrite to determine the origin of the ore-forming fluids. The 3 He/ 4 He ratios of the crushed fluid inclusions vary from 0.15 to 1.16 Ra, with a mea...