SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Wang, Yin‐Hong; Chun-bo, Zhao; Zhang, Fangfang; Liu, Jiajun; Wang, Jianping; Peng, Runmin; Liu, Bin

doi:10.1016/j.gr.2014.10.001

Cited by 81 publications

(24 citation statements)

References 116 publications

(134 reference statements)

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“…260-210 Ma), and the Yanshanian , have been identified in East China (Fig. 11), based on present and the previously published Re-Os data (Liao et al, 2008;Mao et al, 2008Mao et al, , 2011aZeng et al, 2011Zeng et al, , 2014Fang et al, 2012;Zhao et al, 2012;Li et al, 2013;Huang et al, 2014a,b;Wang et al, 2014;Zhai et al, 2014;Zhang et al, 2014;Mi et al, 2015;and references therein). Among these, the Yanshanian mineralization is the most important in East China and hosts the largest metal Mo reserves in China (Mao et al, 2008(Mao et al, , 2011a.…”

Section: Timing Of Magmatism and Associated Mo Mineralization: Implicsupporting

confidence: 59%

Late Mesozoic molybdenum mineralization on Hainan Island, South China: Geochemistry, geochronology and geodynamic setting

et al. 2016

Ore Geology Reviews

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Section: Timing Of Magmatism and Associated Mo Mineralization: Implicsupporting

confidence: 59%

Late Mesozoic molybdenum mineralization on Hainan Island, South China: Geochemistry, geochronology and geodynamic setting

et al. 2016

Ore Geology Reviews

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“…Re–Os ages can directly record the timing of primary sulfide mineralisation events. Thus, the molybdenite Re‐Os model age of 142.8 ± 0.78 Ma was acquired from the Datongkeng pluton (Wang et al, ) and the model age of 146.47 Ma (Hu et al, ) was acquired from Lantian Formation, within the allowable error range. We infer that this metallogenic age is able to truly indicate the timing of Mo–Cu mineralisation in the Panjia deposit and the weighted mean age of 142–146 Ma is in accordance with the model age.…”

Section: Discussionmentioning

confidence: 99%

Genesis of the Panjia Wu‐Cu‐Mo deposit: Evidence from the geochemistry and geochronology of the Datongkeng pluton, northeast South China Block

et al. 2019

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The Panjia polymetallic deposit, located in the northwestern region of Zhejiang Province, is a newly discovered medium‐ to large‐sized W–Mo–Cu ore deposit belonging to the northern part of the Qinzhou Bay–Hangzhou Bay metallogenic belt. Through investigation in the field and under the microscope, the hydrothermal activity of this deposit can be divided into four stages: pre‐ore stage, silicate oxidation stage, quartz sulfide stage, and post‐ore stage. The Datongkeng pluton, outcroping in Panjia deposit, is one S‐type intrusive rock and characterised by concentrations of SiO2, K2O and Na2O ranging from 67.03 to 71.09%, 3.03 to 4.89%, and 0.24 to 3.37%, respectively. The major elements display peraluminous, high‐K, calc‐alkaline features. Their A/CNK(A/CNK = n (Al2O3)/ [n (CaO) + n (Na2O) + n(K2O)]) ratios, δEu values, and δCe values vary from 0.93 to 1.98, 0.45 to 0.91, and 0.93 to 1.07, respectively. These rocks are enriched in light rare earth elements (all record values of (La/Yb)N <10, except for one) whereas are depleted in Sr, Ba, Nb, P, Eu, and Ti. The end‐member study of the Pb and S isotopes shows that the mantle material plays an important role in the ore‐forming. Zircon U–Pb dating indicates that the second part of the multiperiod magmatism (154–150 Ma) of Datongkeng pluton is the relevant crystallisation age, and the study of metallogenic stage manifests that the molybdenite is formed at the third stage of the mineralisation sequence considered as the main period of mineralisation, subsequent to the mineralogenetic epoch of scheelite. The petrogenesis is related to the materials in the crust and a small amount of materials in the mantle. While the low degree of mantle source and the Proterozoic basement contribute to the Mo, Cu ore‐forming materials. Finally, two types of metallogenic assemblage are formed, including the W‐Mo polymetallic deposit in the Datongkeng pluton and the W‐Cu‐Pb‐Zn‐Ag polymetallic deposit in the veins in the Lantian Formation.

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“…Examples include porphyritic granites hosting the giant Wunugetushan porphyry Cu-Mo deposit and Chalukou porphyry Mo deposit in the northern Great Xing'an Range; porphyritic monzonitic granite and granodiorite hosting the Aolunhua, Haolibao porphyry Cu-Mo deposit and Banlashan porphyry in the southern Great Xing'an Range; and monzonitic granite and granitic porphyries hosting the Caosiyao, Chaganhua porphyry Mo deposit in the northern margin of the North China Craton [22,47,50,58,65,66,107]. These granitoids are highly fractionated high-K calc-alkaline I-type and/or A-type granites, and they are geochemically characterized by enrichment of the LILEs (Ba, Rb, U, and Th) and Pb, and depletion of the HFSEs (Nb, Ta, and Ti) and HREE [22,47]. It should be noted that the highly fractionated I-type magmatic rocks at Dongbulage are members of the Mo-hosting granitoids in the XMOB.…”

Section: Implications For the Formation Of The Dongbulage Depositmentioning

confidence: 99%

Geochronology of Magmatism and Mineralization in the Dongbulage Mo-Polymetallic Deposit, Northeast China: Implications for the Timing of Mineralization and Ore Genesis

Wang

Liu

et al. 2019

Minerals

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The recently discovered Dongbulage Mo-polymetallic deposit is located in the southern part of the Great Xing'an Range, northeast China. Mineralization is closely related to the emplacement of Middle-Late Jurassic granitoids. In order to understand the petrogenetic link between mineralization and host granitoids, this study presents new zircon U-Pb ages, bulk-rock geochemistry, and molybdenite Re-Os ages for the Dongbulage deposits. LA-ICP-MS zircon U-Pb dating of the monzogranite and syenogranite intrusions yielded two weighted mean 206 Pb/ 238 U ages: of 164 ± 2 Ma and 165 ± 3 Ma, respectively. The subvolcanic rocks (red porphyritic granite and rhyolite) yielded a time interval between 161 ± 2 and 162 ± 3 Ma. In addition, molybdenite from the Dongbulage deposit gave a Re-Os isochron age of 162.6 ± 1.5 Ma, which was interpreted as the age of the mineralization. The new geochronology has established the close temporal and genetic relationships between the mineralization event and the emplacement of the Middle-Late Jurassic granitoids. Bulk-rock geochemistry shows that the Dongbulage granitoids are characterized by high SiO 2 , K 2 O, and A/CNK [Al 2 O 3 /(CaO + Na 2 O + K 2 O)(molar ratio)] values, and low TiO 2 , CaO, and MgO values, indicating a metaluminous to peraluminous, high-K calc-alkaline affinity. The granitoids also featured enrichments of large ion lithophile elements and light rare earth elements (LREE), and a relative depletion of high field strength elements (HFSE), along with an increasing negative δEu anomaly. The high differentiation index (DI), ranging from 81.75 to 94.76, and obvious fractionation between LREE and HREE, indicate that the Dongbulage granitoids are highly fractionated, metaluminous-peraluminous, and high-K calc-alkaline I-type granites. Combined with the regional geology, the Dongbulage granitoids may have formed during post-orogenic extension that followed the Mongol-Okhotsk Ocean closure coeval with subduction of the paleo-Pacific plate.Minerals 2019, 9, 255 2 of 34 source in China. This region is characterized by abundant highly evolved Mesozoic igneous rocks [2], and contains large-scale Ag-, Sn-, Mo-, and Cu-polymetallic vein deposits (Figure 1a) [3,4]. In this region, seven large base metal (≥0.5 Mt) and rare metal (≥0.2 Mt) deposits, and 25 smaller (0.1-0.5 Mt) base metal deposits have been discovered [5]. Three newly recognized metallogenic belts are located within the Great Xing'an Range and its adjacent areas. These are: the northern Mo ± Cu ore-forming belt; the middle Sn ± W ± Ag metallogenic belt; and the southern Mo ore-forming belt (Figure 1b) [6]. The recently discovered Dongbulage deposit is located where the northern Mo ± Cu and middle Sn ± W ± Ag mineralization belts come together (Figure 1b). The deposit represents an unusual example of Mo-polymetallic mineralization dominated by abundant Mo-Pb-Zn with minor Ag-Cu mineralization. The polymetallic features of the Dongbulage deposit represent a change in the style of mineralization characteristics between the Sn...

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SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Cited by 81 publications

References 116 publications

Late Mesozoic molybdenum mineralization on Hainan Island, South China: Geochemistry, geochronology and geodynamic setting

Late Mesozoic molybdenum mineralization on Hainan Island, South China: Geochemistry, geochronology and geodynamic setting

Genesis of the Panjia Wu‐Cu‐Mo deposit: Evidence from the geochemistry and geochronology of the Datongkeng pluton, northeast South China Block

Geochronology of Magmatism and Mineralization in the Dongbulage Mo-Polymetallic Deposit, Northeast China: Implications for the Timing of Mineralization and Ore Genesis

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