Terrane boundary and spatio-temporal distribution of ore deposits in the Sanjiang Tethyan Orogen: Insights from zircon Hf-isotopic mapping

Wang, Changming; Bagas, Leon; Lu, Yongjun; Santosh, M.; Du, Bin; McCuaig, T. Campbell

doi:10.1016/j.earscirev.2016.02.008

Cited by 157 publications

(54 citation statements)

References 136 publications

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“…Zircon Hf isotopic data are generally used to probe into the nature of magma source and to trace the heterogeneity of mantle sources (Santosh, Hari, He, Yan, & Manu Prasanth, ; Wang et al, ; Wang, Deng, Bagas, & Wang, ). Our zircon Hf isotopic data display negative ε Hf (t) values in the range of −21.7 to −7.8, with T DM C of 1680–2560 Ma (Table ).…”

Section: Discussionmentioning

confidence: 99%

EarlyCretaceous adakitic granitoids from theZhijiazhuang skarn iron deposit,NorthTaihangMountain,China: Implications for petrogenesis and metallogenesis associated with craton destruction

et al. 2018

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The North Taihang Mountain region located within the Trans‐North China Orogen is one of the major Mesozoic metallogenic belts in the North China Craton and carries varied polymetallic mineralization associated with multiple magmatic pulses. Here, we investigate the Zhijiazhuang skarn iron deposit from this region through petrological, geochemical, zircon U–Pb geochronological and Lu–Hf isotopic studies of the associated granitoids to constrain the ages, petrogenesis, and process of mineralization. Zircon U–Pb dating shows multiple pulses of magmatism with three major peaks at 134, 129, and 125 Ma as well as some scattered spot ages of 121, 118, and 112 Ma consistent with regional multistage magmatic events during the Early Cretaceous. Zircon Hf data display negative εHf (t) values from −21.7 to −7.8 and two‐stage crustal model ages (TDMC) in the range of 1,680–2,560 Ma, indicating magma derivation from reworking of late Neoarchean to early Paleoproterozoic crustal materials possibly with minor lithospheric mantle input. Geochemical data indicate I‐type adakitic signature for the intrusion, suggesting the involvement of subduction‐related components. The adakitic rocks identified in this study originated from a mixture of crustal and lithospheric mantle components followed by upper crustal fractional crystallization. Collectively, the data suggest that the granitoids were formed by interaction of crust–mantle materials through partial melting of a thickened or delaminated lower continental crust and lithospheric mantle corresponding to the peak event of lithospheric thinning and craton destruction of the North China Craton. The tectonics is correlated with the westward subduction of the Paleo‐Pacific Plate. Combined with information from previous studies associated with porphyry–skarn‐type deposits in the whole Taihang Mountain region, we correlate the multiple phases of magmatism and mineralization of the deposit to the peak event of lithospheric thinning and destruction of the North China Craton, and the Zhijiazhuang skarn iron deposit was likely generated by the interaction of magmas and fluids with the dolomitic wall rocks.

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Section: Discussionmentioning

confidence: 99%

EarlyCretaceous adakitic granitoids from theZhijiazhuang skarn iron deposit,NorthTaihangMountain,China: Implications for petrogenesis and metallogenesis associated with craton destruction

et al. 2018

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“…The Lanping Basin has a complex geological history (Wang, Bagas, Lu, Santosh, & Du, ; Yang et al, ). This includes the separation of the Simao Terrane from the Cathaysian continent during the Early Ordovician to Middle Devonian, post‐collisional extension and rifting during the Late Triassic (ca.…”

Section: Regional Geological Settingmentioning

confidence: 99%

“…Geological map of (a) the Sanjiang‐Tethys Orogen showing tectonic framework and (b) the Lanping Basin showing the location of major ore deposits (modified after Deng, Wang, Li, Li and Wang, ; Wang, Deng, Carranza and Lai, ; Wang et al, ; Wang et al, ). Acronyms: EQT = East Qiangtang Terrane; NCC = North China Craton; SMT = Simao Terrane; SGAC = Songpan‐Ganzi accretionary complex; WBT = West Burma Terrane; WQT = West Qiangtang Terrane.…”

Section: Introductionmentioning

confidence: 99%

Mineralization processes at the giant Jinding Zn–Pb deposit, Lanping Basin, Sanjiang Tethys Orogen: Evidence from in situ trace element analysis of pyrite and marcasite

et al. 2017

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The giant Jinding Zn–Pb deposit is in the Mesozoic–Cenozoic Lanping Basin of southern China and hosted by sandstone in the Early Cretaceous Jingxing Formation and limestone breccia and sandstone and gypsum in the Palaeocene Yunlong Formation. Mineral associations at the deposit are early (Stage 1) marcasite–sphalerite(–pyrite) and galena–quartz; through (Stage 2) pyrite–sphalerite–galena(–arsenopyrite) and marcasite–celestite–carbonate–gypsum; and the late (Stage 3) galena–sphalerite–pyrite–sulfate–carbonate(–celestite), gypsum, and barite. Pyrite and marcasite have higher Pb, Zn, Ag, Bi, As, Se, and Tl and lower V, Cr, Co, Ni, Cu, and Sn assays in orebodies hosted by sandstone and brecciated limestone. The concentration of these elements progresses from the early to late stages with increasing Cu, Zn, Ag, Bi, V, Cr, Co, Ni, and Se; decreasing Tl and As; and constant Pb, Sn, and Sb. This chemical characteristic of the pyrite and marcasite indicates that their source is basinal brine with minor contribution from the host rocks. During the early and middle stages, pyrite and marcasite contain higher concentration of Pb, Tl, and As, which is related to mineralized basinal brine and H2S‐rich fluids at a low pH during relatively higher temperature conditions. During the late stage mineralization, pyrite and marcasite contain the highest concentrations of Cu, Zn, Ag, Sb, Pb, Bi, and Se, which is associated with metal‐rich basinal brine and meteoric water at a near‐neutral pH and lower temperature conditions.

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“…The mafic rocks are mainly lamprophyre dykes and minor mafic lavas with ages ranging from 37 to 33 Ma (Figure 1; Xu, Menzies, Thirlwall, & Xie, 2001;Li et al, 2002;Guo et al, 2005; Huang, Niu, Xu, Chen, & Yang, 2010;Lu et al, 2015). Felsic Lu et al, 2012;Lu, Kerrich, Kemp, et al, 2013Yang et al, 2014;Wang et al, 2016). Abbreviations: JS, Jinshajiang Suture; GS, Garze-Litang Suture; CMS, Changning-Menglian Suture; ASRR, Ailaoshan-Red River shear zone.…”

Section: Introductionmentioning

confidence: 99%

Petrogenesis of the Cenozoic Lianhuashan pluton (SW China): Constrained by zircon U–Pb geochronology, Lu–Hf isotope, and geochemistry

Wang

Yang

et al. 2019

Geological Journal

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Potassic magmatic rocks provide significant insights in understanding of mantle composition, evolution, and interaction with crust. Potassic magmatism along the Jinshajiang-Ailaoshan Paleo-Tethyan suture has drawn much attention. Whereas igneous intrusion in the Simao terrane, west to Jinshajiang-Ailaoshan potassic magmatic belt has rarely been investigated. Hence, we present zircon U-Pb ages and Lu-Hf isotope and whole-rock geochemistry for the Lianhuashan pluton. Zircon U-Pb dating from monzonite and quartz monzonite porphyry yield ages of 33.6 ± 0.2 and 33.5 ± 0.3 Ma, respectively. Monzonites are characterized by high K 2 O (4.93-5.16%) and K 2 O/Na 2 O (1.46-1.71), high Y (22.90-23.80 ppm), and Yb (1.87-2.21 ppm), relatively enrichment of light rare earth element (LREE). Zircons from monzonites show ε Hf (t) values ranging from −1.1 to +0.6 and crustal model ages (T DM C ) between 1.04 and 1.15 Ga. These geochemical features suggest that parent magmas of the rocks originated from a metasomatized lithospheric mantle. Quartz monzonite porphyries are characterized by high Sr (836.00-1,529.00 ppm), Sr/Y (70.85-99.93) and La/Yb (32.31-49.83), low Y (11.80-15.60 ppm), and Yb (0.95-1.30 ppm), enrichment in LREE and depletion in heavy rare earth elements (HREE).Quartz monzonite porphyries have higher Mg # , MgO, Ni, and Cr contents than the lower crust-derived adakite-like rocks. It is suggested that they were derived by variable degree of mixing between lower-crustal melts and mafic magmas. Based on petrology and geochemistry features, the following evolution process are concluded.During the Neoproterozoic, metasomatic-enriched mantle magma resulted from the bisubduction of oceanic plate; meanwhile, the crust thickened, and juvenile lower crust formed. During late Eocene, hot asthenosphere upwelled and K-rich mafic magmas resulted from the decompression of delamination, followed by magmatism emplacing, crystallizing, and the forming of the Lianhuashan pluton. KEYWORDS Lianhuashan potassic pluton, magmatism model, metasomatized lithospheric mantle, the Sanjiang Orogen ). However, few detailed investigations have been carried out on the Lianhuashan pluton in the Simao terrane, which restricts understanding of the deep crust-mantle interaction, the genesis, and dynamic processes of potassic magmatic rocks in the Jinshajiang-Ailaoshan Suture. The Lianhuashan pluton is part of the Jinshajiang-Ailaoshan potassic magmatic belt and a representative pluton developed in the Lanping basins. Despite of few geological and geochemical researches on the Lianhuashan pluton since the 2000s (Dong et al., 2005;Liu et al., 2017), the magma source, evolution, and the tectonic setting are still obscure. This is partly due to the lack of precise geochemical data and integrated studies. In this paper, we present zircon LA-ICP-MS U-Pb age, Lu-Hf isotope, and whole-rock geochemistry for the Lianhuashan pluton with a view to (1) constrain the crystallization age, (2) reveal the magma source and magma evolution, and (3) construct a geodynamic ...

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Terrane boundary and spatio-temporal distribution of ore deposits in the Sanjiang Tethyan Orogen: Insights from zircon Hf-isotopic mapping

Cited by 157 publications

References 136 publications

EarlyCretaceous adakitic granitoids from theZhijiazhuang skarn iron deposit,NorthTaihangMountain,China: Implications for petrogenesis and metallogenesis associated with craton destruction

EarlyCretaceous adakitic granitoids from theZhijiazhuang skarn iron deposit,NorthTaihangMountain,China: Implications for petrogenesis and metallogenesis associated with craton destruction

Mineralization processes at the giant Jinding Zn–Pb deposit, Lanping Basin, Sanjiang Tethys Orogen: Evidence from in situ trace element analysis of pyrite and marcasite

Petrogenesis of the Cenozoic Lianhuashan pluton (SW China): Constrained by zircon U–Pb geochronology, Lu–Hf isotope, and geochemistry

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