Arabian Journal of Geosciences

, 12:568 | Cite as

The Middle–Late Silurian granitoids in the Eastern Kunlun Orogenic Belt, NW China: petrogenesis and implications for tectonic evolution

  • Ying-Chao Wang
  • Feng-Yue SunEmail author
Original Paper


The Eastern Kunlun Orogenic Belt lay on a significant tectonic boundary between Gondwana and Eurasia, produced widespread granitoids, and recorded at least two orogenic episodes since the Phanerozoic eon. In this paper, we provided new petrography, geochemistry, zircon U–Pb dating, and Lu–Hf isotopic research on the Middle–Late Silurian granitoids from the eastern segment of The Eastern Kunlun Orogenic Belt. These granitoids comprised of Zhongzhigou granodiorites and Xintuo alkali-feldspar granites, formed in the Middle–Late Silurian (420–425 Ma). Geochemically, the granodiorites exhibit high Sr/Y (31.2–35.2) as adakitic affinities, and alkali-feldspar granites belong to highly fractionated I-type granites. Additionally, granodiorites have zircon εHf(t) values show limited positive variations from − 0.5 to + 3.2, with two-stage Hf model ages (TDM2) of 1105–1306 Ma, while alkali-feldspar granites show negative zircon εHf(t) values ranged from − 4.6 to − 0.1 with two-stage Hf model ages (TDM2) of 1289–1541 Ma, implying that their primary magma originated from different sources. Taken together, we conclude that granodiorites had been derived from partial melting of the juvenile newly underplated mafic lower crust, while alkali-feldspar granites were derived from partial melting of the shallower ancient crustal source. Combined with temporal and spatial distribution of magmatic activities, sedimentation, and metamorphism, it can be concluded that the whole EKOB underwent a transition from syn-collision compression to post-collision extension and extensive crustal reworking occurred during the Middle–Late Silurian.


Eastern Kunlun Orogenic Belt Geochronology Granitoids Proto-Tethys Ocean Post-collision extension 



We are grateful to the staff of Testing Center of Jilin University for their advice and assistance in major and trace elements analysis. We thank Yanduzhongshi Geological Analysis Laboratories Ltd. for their assistance during zircon U–Pb dating by LA–ICP–MS and the Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, China, for their assistance in zircon Hf isotopic analyses.


  1. Andersen T (2002) Correction of common lead in U-Pb analyses that do not report 204 Pb. Chem Geol 192(1–2):59–79CrossRefGoogle Scholar
  2. Bian QT, Li DH, Pospelov I, Yin LM, Li HS, Zhao DS, Chang CF, Luo XQ, Gao SL, Astrakhantsev O, Chamov N (2004) Geochemistry and tectonic setting of Buqingshan ophiolites, north Qinghai-Tibet Plateau, China. J Asian Earth Sci 23:577–596CrossRefGoogle Scholar
  3. Boynton WV (1984) Chapter 3-Cosmochemistry of the rare earth elements: meteorite studies. Dev Geochem 2(2):63–114CrossRefGoogle Scholar
  4. Castillo PR (2012) Adakite petrogenesis. Lithos 134:304–316CrossRefGoogle Scholar
  5. Castillo PR, Janney PE, Solidum RU (1999) Petrology and geochemistry of Camiguin Island, southern Philippines: insights to the source of adakites and other lavas in a complex arc setting. Contrib Mineral Petrol 134(1):33–51CrossRefGoogle Scholar
  6. Chappell BW (1974) Two contrasting granite type. Pac Geol 8:173–174Google Scholar
  7. Chappell BW (1999) Aluminium saturation in I- and S-type granites and the characterization of fractionated haplogranites. Lithos 46(3):535–551CrossRefGoogle Scholar
  8. Chappell BW, White AJR (1992) I- and S-type granites in the Lachlan Fold Belt. Trans R Soc Edinb Earth Sci 83(1–2):1–26Google Scholar
  9. Chappell BW, Bryant CJ, Wyborn D (2012) Peraluminous I-type granites. Lithos 153(8):142–153CrossRefGoogle Scholar
  10. Chen NS, Sun M, Zhang KX et al (2000) The 40Ar-39Ar and U-Pb ages of meta-diorite intrusion in the East Kunlun: Evidences from surplus Ar and the early Paleozoic magmatic belt. Sci Bull 45(21):2337–2342CrossRefGoogle Scholar
  11. Chen NS, Sun M, Zhang K (2001) 40Ar-39Ar and U-Pb ages of metadiorite from the East Kunlun Orogenic Belt: evidence for Early-Paleozoic magmatic zone and excess argon in amphibole minerals. Chin Sci Bull 46:330–333CrossRefGoogle Scholar
  12. Chen HW, Luo ZH, Xuan-Xue MO et al (2006) SHRIMP ages of Kayakedengtage complex in the East Kunlun Mountains and their geological implications. Acta Petrol Mineral 25(1):25–32Google Scholar
  13. Chen NS, Sun M, Wang QY, Zhao GC, Chen Q, Shu GM (2007) EMP chemical ages of monazites from central zone of the eastern Kunlun Orogen, records of multi-tectonometamorphic events. Chin Sci Bull 52:2252–2263CrossRefGoogle Scholar
  14. Chen NS, Sun M, Wang QY et al (2008) U–Pb dating of zircon from the Central Zone of the East Kunlun Orogen and its implications for tectonic evolution. Sci China Ser D – Earth Sci 51:929–938CrossRefGoogle Scholar
  15. Chen NS, Wang QY, Wang XY et al (2012a) Nd-Sr-Pb isotopic compositions of cordierite granite on southern margin of the Qaidam Block, NW China, and constraints on its petrogenesis, tectonic affinity of source region and tectonic implications. Earth Sci 37:80–92Google Scholar
  16. Coldwell B, Clemens J, Petford N (2011) Deep crustal melting in the Peruvian Andes: felsic magma generation during delamination and uplift. Lithos 125:272–286CrossRefGoogle Scholar
  17. Defant MJ, Drummond MS (1990) Derivation of some modern arc magmas by melting of young subducted lithosphere. Nature 347(6294):662–665CrossRefGoogle Scholar
  18. Ding QF, Jiang SY, Sun FY et al (2014) Zircon U–Pb geochronology, geochemical and Sr–Nd–Hf isotopic compositions of the Triassic granite and diorite dikes from the Wulonggou mining area in the Eastern Kunlun Orogen, NW China: petrogenesis and tectonic implications. Lithos 205:266–283CrossRefGoogle Scholar
  19. Dong YP, He DF, Sun SS, Liu XM, Zhou XH, Zhang FF, Yang Z, Cheng B, Zhao GC, Li JH (2017) Subduction and accretionary tectonics of the East Kunlun orogen, western segment of the Central China Orogenic System. Earth-Science Reviews CrossRefGoogle Scholar
  20. Feng JY, Pei XZ, Yu SL et al (2010) The discovery of the mafic-ultramafic melange in Kekesha area of Dulan County, East Kunlun region, and its LA-ICP-MS zircon U-Pb age. Geol China 37(1):28–38Google Scholar
  21. Guo AL, Zhang GW, Sun YG et al (2007) Sr- Nd- Pb isotopic geochemistry of late-Paleozoic mafic volcanic rocks in the surrounding areas of the Gonghe basin, Qinghai province and geological implications. Acta Petrol Sin 23(4):747–754Google Scholar
  22. Hao N, Yuan W, Zhang A et al (2014) Late Silurian to early Devonian Granitoids in the Qimantage area, East Kunlun Mountains: LA-ICP-MS zircon U-Pb ages, geochemical features and geological setting. Geol Rev 60(1):201–215Google Scholar
  23. Harris NBW, Xu R, Lewis CL et al (1988) Isotope geochemistry of the 1985 Tibet Geotraverse, Lhasa to Golmud. Philos Trans R Soc Lond 327(1594):263–285CrossRefGoogle Scholar
  24. Jiang CF (1992) Opening–closing tectonics of Kunlun Mountains. Series Geol Memoirs 5:1–224Google Scholar
  25. Jiang YH, Jia RY, Liu Z et al (2013) Origin of Middle Triassic high-K calc-alkaline granitoids and their potassic microgranular enclaves from the western Kunlun orogen, northwest China: a record of the closure of Paleo-Tethys. Lithos 156–159(1):13–30CrossRefGoogle Scholar
  26. Kay RW, Kay SM (1993) Delamination and delamination magmatism. Tectonophysics 219(219):177–189CrossRefGoogle Scholar
  27. Koschek G (1993) Origin and significance of the SEM cathodoluminescence from zircon. J Microsc 171(3):223–232CrossRefGoogle Scholar
  28. Li HK, Lu SN, Xiang ZQ et al (2006) SHRIMP U-Pb zircon age of the granulite from the Qingshuiquan area, Central Eastern Kunlun Suture Zone. Earth Sci Front 13:311–321Google Scholar
  29. Li BL, Sun FY, Yu XF et al (2012a) U-Pb dating and geochemistry of diorite in the eastern section from eastern Kunlun middle uplifted basement and granitic belt. Acta Petrol Sin 28(4):1163–1172Google Scholar
  30. Li CF, Li XH, Li QL, Guo JH, Li XH, Yang YH (2012b) Rapid and precise determination of Sr and Nd isotopic ratios in geological samples from the same filament loading by thermal ionization mass spectrometry employing a single-step separation scheme. Anal Chim Acta 727(10):54–60CrossRefGoogle Scholar
  31. Li RB, Pei XZ, Li ZC, Sun Y et al (2013) Regional tectonic transformation in East Kunlun orogenic belt in Early Paleozoic: constraints from the geochronology and geochemistry of Helegangnaren alkali-feldspar granite. Acta Geol Sin 87:333–345CrossRefGoogle Scholar
  32. Liu Y, Hu Z, Gao S, Günther D, Xu J, Gao C, Chen H (2008) In situ, analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard. Chem Geol 257(1–2):34–43CrossRefGoogle Scholar
  33. Liu Y, Gao S, Hu Z, et al (2010) Continental and oceanic crustrecycling-induced melt- peridotite interactions in the trans-North China Orogen: UPb dating, Hf isotopes and trace elements in zircons from mantle xenoliths. Journal of Petrology 51:537–571CrossRefGoogle Scholar
  34. Liu B, Ma CQ, Zhang JY et al (2012) Petrogenesis of Early Devonian intrusive rocks in the east part of Eastern Kunlun Orogen and implication for Early Palaeozoic orogenic processes. Acta Petrol Sin 28:1785–1807Google Scholar
  35. Liu B, Ma CQ, Jiang H et al (2013) Early Paleozoic tectonic transition from ocean subduction to collisional orogeny in the Eastern Kunlun Region: evidence from Huxiaoqin mafic rocks. Acta Petrol Sin 29:2093–2106Google Scholar
  36. Lu SN (2002) Precambrian geology in northern Tibetan plateau. Geological Publishing House, Beijing, pp 1–125Google Scholar
  37. Lu L, Wu ZH, Hu DG et al (2010a) Zircon U-Pb age for rhyolite of the Maoniushan formation and its tectonic significance in the East Kunlun mountains. Acta Geol Sin 26:1150–1158Google Scholar
  38. Lu LU, Wu ZH, Hu DG et al (2010b) Zircon U-Pb age for rhyolite of the Maoniushan formation and its tectonic significance in the East Kunlun Mountains. Acta Petrol Sin 26(4):1150–1158Google Scholar
  39. Lu LU, Lin ZY, Han WZ et al (2013) Zircon U-Pb dating of Early Paleozoic granites from the East Kunlun Mountains and its geological significance. Acta Geosci Sin 34(4):447–454Google Scholar
  40. Ludwig KR, 2003. User’s Manual for Isoplot/Ex v3.0, a geochronology toolkit for Microsoft Excel Berkeley Geochronological Center Special Publications, vol. 4:25–31Google Scholar
  41. Maniar PD, Piccoli PM (1989) Tectonic discrimination of granitoids. Geol Soc Am Bull 101(5):635–643CrossRefGoogle Scholar
  42. Martin H, Smithies RH, Rapp R, Moyen JF, Champion D (2005) An overview of adakite, tonalite–trondhjemite– granodiorite (TTG), and sanukitoid: relationships and some implications for crustal evolution. Lithos 79(1–2):1–24CrossRefGoogle Scholar
  43. Meng F, Zhang J, Cui M (2013) Discovery of early Paleozoic eclogite from the east Kunlun, Western China and its tectonic significance. Gondwana Res 23:825–836CrossRefGoogle Scholar
  44. Mo X, Luo Z, Deng J et al (2007) Granitoids and crustal growth in the east- Kunlun Orogenic Belt. Geol J China Univ 13(3):403–414Google Scholar
  45. Moyen JF (2009) High Sr/Y and La/Yb ratios: the meaning of the “adakitic signature”. Lithos 112:556–574CrossRefGoogle Scholar
  46. Pearce J (1996) Sources and settings of granitic rocks. Episodes 19:120–125Google Scholar
  47. Peccerillo A, Taylor SR (1976) Geochemistry of eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey. Contrib Mineral Petrol 58(1):63–81CrossRefGoogle Scholar
  48. Qiu J, Li Z, Xiao E et al (2008) Petrogenesis of highly fractionated I-type granites in the coastal area of northeastern Fujian Province:Constraints from zircon U-Pb geochronology,geochemistry and Nd-Hf isotopes. Acta Petrol Sin 24(11):2468–2484Google Scholar
  49. Rapp RP, Watson EB (1995) Dehydration melting of metabasalt at 8–32 kbar: implications for continental growth and crust-mantle recycling. J Petrol 36(4):891–931CrossRefGoogle Scholar
  50. Rapp RP, Shimizu N, Norman MD, Applegate GS (1999) Reaction between slab-derived melts and peridotite in the mantle wedge: experimental constraints at 3.8 GPa. Chem Geol 160(4):335–356CrossRefGoogle Scholar
  51. Ren JH, Liu YQ, Feng Q et al (2009) Geochemistry and LA-ICP-MS zircon U-Pb dating of Qingshuiquan diabase dike in East Kunlun [J]. Acta Petrologica Sinica 25(05):1135-1145Google Scholar
  52. Sun SS, Mcdonough WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Geol Soc Lond Spec Publ 42(1):313–345CrossRefGoogle Scholar
  53. Sun FY, Li BL, Ding QF et al (2009) Report on the difficult research results of major geological prospecting problems in the East Kunlun metallogenic belt, Qinghai ProvinceGoogle Scholar
  54. Taylor SR, Mclennan SM (1985) The continental crust: its composition and evolution, an examination of the geochemical record preserved in sedimentary rocks. J Geol 94(4):632–633Google Scholar
  55. Tseng CY, Yang HJ, Yang HY et al (2009) Continuity of the North Qilian and North Qinling orogenic belts, central orogenic system of China: evidence from newly discovered Paleozoic adakitic rocks. Gondwana Res 16:285–293CrossRefGoogle Scholar
  56. Turner SP, Foden JD, Morrison RS (1992) Derivation of some A-type magmas by fractionation of basaltic magma, an example from the Padthaway Ridge, SouthAustralia. Lithos 28:151–179CrossRefGoogle Scholar
  57. Wang, Y.S., Chen, J.N., 1987. Metamorphic zone and metamorphism in Qinghai Province and its adjacent areas geological publishing house, Beijing. 1-248Google Scholar
  58. Wang G, Sun F, Li BL et al (2014) Petrography, zircon U-Pb geochronology and geochemistry of the mafic-ultramafic intrusion in Xiarihamu Cu-Ni deposit from East Kunlun, with implications for geodynamic setting. Earth Science Frontiers 88(s2):318–319Google Scholar
  59. Wilson, M., 1989. Igneous Petrogenesis Unwim Hyman, London.1–366 aGoogle Scholar
  60. Wu FY, Jahn BM, Wilde SA et al (2003) Highly fractionated I-type granites in NE China (I): geochronology and petrogenesis. Lithos 66(3–4):241–273CrossRefGoogle Scholar
  61. Wu FY, Yang YH, Xie LW, Yang JH, Xu P (2006) Hf isotopic compositions of thestandard zircons and baddeleyites used in U-Pb geochronology. Chem Geol 234:105–126CrossRefGoogle Scholar
  62. Wu FY, Li XH, Yang JH et al (2007) Discussions on the petrogenesis of granites. Acta Petrol Sin 23(6):1217–1238Google Scholar
  63. Wyborn D, Chappell BW, James M (2001) Examples of convective fractionation in high-temperature granites from the Lachlan Fold Belt. J Geol Soc Aust 48(4):531–541Google Scholar
  64. Xia R, Wang C, Deng J, Carranza EJM, Li W, Qing M (2014) Crustal thickening prior to 220 Ma in the East Kunlun Orogenic Belt: insights from the Late Triassic granitoids in the Xiao-Nuomuhong pluton. J Asian Earth Sci 93(1):193–210CrossRefGoogle Scholar
  65. Xiao B, Li Q, Liu S, Wang Z, Yang P, Chen J, Xu X (2014) Highly fractionated late Triassic I-type granites and related molybdenum mineralization in the Qinling orogenic belt: geochemical and U–Pb–Hf and Re–Os isotope constraints. Ore Geol Rev 56(1):220–233CrossRefGoogle Scholar
  66. Xin W, Sun FY, Li L, et al. (2018). The wulonggou metaluminous a 2 -type granites in the eastern kunlun orogenic belt, nw China: rejuvenation of subduction-related felsic crust and implications for post-collision extension. Lithos, S0024493718301622Google Scholar
  67. Xiong FH, Ma CQ, Zhang JY, Liu B (2012) The origin of mafic microgranular enclaves and their host granodiorites from East Kunlun, northern Qinghai-Tibet plateau: implications for magma mixing during subduction of Paleo-Tethyan lithosphere. Mineral Petrol 104(3–4):211–224CrossRefGoogle Scholar
  68. Xu ZQ, Yang JS, Jiang M et al (2001) Deep structure and lithospheric shear faults in the East Kunlun-Qiangtang region, northern Tibetan Plateau. Sci China Ser D – Earth Sci 44S:1–9CrossRefGoogle Scholar
  69. Xu JF, Shinjo R, Defant MJ, Wang Q, Rapp RP (2002) Origin of Mesozoic adakitic intrusive rocks in the Ningzhen area of east China: partial melting of delaminated lower continental crust? Geology 30(12):1111–1114CrossRefGoogle Scholar
  70. Xu WL, Wang QH, Wang DY, Guo JH, Pei FP (2006) Mesozoic adakitic rocks from the Xuzhou–Suzhou area, eastern China: evidence for partial melting of delaminated lower continental crust. J Asian Earth Sci 27(2):230–240CrossRefGoogle Scholar
  71. Xu, Z.Q., Yang, J.S., Li, H.B., et al., 2007. Terrane amalgamation, collision and uplift in the Qinghai-Tibet Plateau. Geological Publishing House, Beijing (1–458 pp.)Google Scholar
  72. Xu WL, Gao S, Yang DB, Pei FP, Wang QH (2009) Geochemistry of eclogite xenoliths in Mesozoic adakitic rocks from Xuzhou-Suzhou area in central China and their tectonic implications. Lithos 107(3–4):269–280CrossRefGoogle Scholar
  73. Xu ZQ, Yang JS, Li HQ et al (2012) Indosinian collision-orogenic system of Chinese continent and its orogenic mechanism. Acta Petrol Sin 28(6):1697–1709Google Scholar
  74. Yang JS, Robinson PT, Jiang CF, Xu ZQ (1996) Ophiolites of the Kunlun Mountains, China and their tectonic implication. Tectonophysics 258(1–4):215–231CrossRefGoogle Scholar
  75. Yuan H, Gao S, Liu X, Li H, Günther D, Wu F (2004) Accurate U-Pb age and trace element determinations of zircon by laser ablation-inductively coupled plasma-mass spectrometry. Geostand Geoanal Res 28(3):353–370CrossRefGoogle Scholar
  76. Yuan H, Gao S, Liu X et al (2010b) Accurate U-Pb age and trace element determinations of zircon by laser ablation-inductively coupled plasma-mass spectrometry. Geostand Geoanal Res 28(3):353–370CrossRefGoogle Scholar
  77. Zhang YL, Hu DG, Shi YR et al (2010a) SHRIMP zircon U-Pb ages and tectonic significance of Maoniushan formation volcanic rocks in East Kunlun Orogenic Belt, China. Geol Bull China 29:1614–1618Google Scholar
  78. Zhang JY, Chang MA, Xiong FH et al (2012) Petrogenesis and tectonic significance of the Late Permian–Middle Triassic calc-alkaline granites in the Balong region, eastern Kunlun Orogen, China. Geol Mag 149(5):892–908CrossRefGoogle Scholar
  79. Zhou ZQ, Gao XD, Zhao JT et al (1996) Early Palaeozoic stratigraphy and sedimentary tectonic evolution in eastern Qilian Mountains. China Northwest Geosci 17:1–46Google Scholar
  80. Zhou B, Dong Y, Zhang F, Yang Z, Sun S, He D (2016) Geochemistry and zircon U-Pb geochronology of granitoids in the East Kunlun Orogenic Belt, northern Tibetan plateau: origin and tectonic implications. J Asian Earth Sci 130:265–281CrossRefGoogle Scholar
  81. Zhu YH, Lin QX, Jia CX, Wang GC (2006) SHRIMP zircon U-Pb age and significance of Early Paleozoic volcanic rocks in East Kunlun orogenic belt, Qinghai Province, China.Sci. China Earth Sci. 49:88–96CrossRefGoogle Scholar

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© Saudi Society for Geosciences 2019

Authors and Affiliations

  1. 1.College of Earth SciencesJilin UniversityChangchunChina

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