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Petrogenesis of Triassic Caojian A-type rhyolites and associated I-type granites in the southeastern Tibetan Plateau: rejuvenation of crystal mush

Published online by Cambridge University Press:  02 November 2021

Feng Cong
Affiliation:
Chengdu Center of China Geological Survey, Chengdu, China
De-Feng He*
Affiliation:
State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
Wei-Qiang Ji
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Liang Huang
Affiliation:
Yunnan Institute of Geological Survey, Kunming, China
Bo Xiong
Affiliation:
Yunnan Institute of Geological Survey, Kunming, China
Shao-Hua Zhang
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Xiao-Ming Huang
Affiliation:
Chengdu Center of China Geological Survey, Chengdu, China
*
Author for correspondence: De-Feng He, Email: hedefeng@mail.gyig.ac.cn

Abstract

The orogenic process and crustal growth of the Changning–Menglian Palaeo-Tethys orogenic belt in the southeastern Tibetan Plateau is not fully understood. Triassic Caojian rhyolites and granites occur extensively in this orogenic belt and represent important constraints for this issue. This study aims to examine the relationships between the Triassic Caojian rhyolites and granites and to gain a better understanding of their possible petrogenesis. The study used zircon U–Pb geochronology, trace element analyses and Sr–Nd–Hf isotope data to better understand the relationships and possible origin of the rhyolites and granites. Recent zircon U–Pb ages indicated that the Caojian rhyolites were emplaced at 227.2 Ma, whereas age estimates for Caojian granites were slightly older (233.4–236.9 Ma). The Caojian rhyolites are enriched in large-ion lithophile elements and high-field-strength elements, with elevated FeOtot/MgO and Ga/Al ratios. However, they are significantly depleted in Ba, Sr, Eu, P and Ti. These geochemical characteristics indicate that they have an A-type affinity. Furthermore, the Caojian granites comprise biotite monzogranites and granodiorites and show unfractionated composition. Mineralogically, the Caojian granites were found to contain diagnostic I-type minerals such as hornblende. Geochemical data suggest that the petrogenesis of the Triassic Caojian rhyolites is characterized by rejuvenation of crystal mush represented by the Triassic Caojian granites. The necessary thermal input was supplied by mafic magma. This magmatic evolution was likely related to lithospheric delamination and upwelling of the asthenosphere during the Mid- to Late Triassic, forming post-collisional I-type granites and A-type volcanics in the Changning–Menglian Palaeo-Tethys orogenic belt.

Type
Original Article
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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References

Bachmann, O and Bergantz, GW (2004) On the origin of crystal-poor rhyolites: extracted from batholithic crystal mushes. Journal of Petrology 45, 1565–82.CrossRefGoogle Scholar
Bachmann, O and Bergantz, GW (2006) Gas percolation in upper-crustal silicic crystal mushes as a mechanism for upward heat advection and rejuvenation of near-solidus magma bodies. Journal of Volcanology and Geothermal Research 149, 85102.CrossRefGoogle Scholar
Bachmann, O, Dungan, MA and Lipman, PW (2002) The Fish Canyon magma body, San Juan volcanic field, Colorado: rejuvenation and eruption of an upper-crustal batholith. Journal of Petrology 43, 1469–503.CrossRefGoogle Scholar
Bachmann, O and Huber, C (2016) Silicic magma reservoirs in the Earth’s crust. American Mineralogist 101, 2377–404.CrossRefGoogle Scholar
Bachmann, O, Miller, CF and de Silva, SL (2007) The volcanic-plutonic connection as a stage for understanding crustal magmatism. Journal of Volcanology and Geothermal Research 167, 123.CrossRefGoogle Scholar
Bonin, B (2007) A-type granites and related rocks: evolution of a concept, problems and prospects. Lithos 97, 129.CrossRefGoogle Scholar
Bonin, B, Azzouni-Sekkal, A, Bussy, F and Ferrag, S (1998) Alkali-calcic and alkaline post-orogenic (PO) granite magmatism: petrologic constraints and geodynamic settings. Lithos 45, 4570.CrossRefGoogle Scholar
Bouvier, A, Vervoort, JD and Patchett, PJ (2008) The Lu-Hf and Sm-Nd isotopic composition of CHUR: constraints from unequilibrated chondrites and implications for the bulk composition of terrestrial planets. Earth and Planetary Science Letters 273, 4857.CrossRefGoogle Scholar
Burgisser, A and Bergantz, GW (2011) A rapid mechanism to remobilize and homogenize highly crystalline magma bodies. Nature 471, 212–15.CrossRefGoogle ScholarPubMed
Cashman, KV, Sparks, RSJ and Blundy, JD (2017) Vertically extensive and unstable magmatic systems: a unified view of igneous processes. Science. 355. doi: 10.1126/science.aag3055.CrossRefGoogle ScholarPubMed
Catlos, EJ, Reyes, E, Brookfield, M and Stockli, DF (2017) Age and emplacement of the Permian-Jurassic Menghai batholith, Western Yunnan, China. International Geology Review 59, 919–45.CrossRefGoogle Scholar
Chappell, BW and Wyborn, D (2004) Cumulate and cumulative granites and associated rocks. Resource Geology 54, 227–40.CrossRefGoogle Scholar
Chen, F, Li, XH, Wang, XL, Li, QL and Siebel, W (2007) Zircon age and Nd-Hf isotopic composition of the Yunnan Tethyan belt, southwestern China. International Journal of Earth Sciences 96, 1179–94.CrossRefGoogle Scholar
Clemens, JD, Holloway, JR and White, AJR (1986) Origin of an A-type granite: experimental constraints. American Mineralogist 71, 317–24.Google Scholar
Collins, WJ, Beams, SD, White, AJR and Chappell, BW (1982) Nature and origin of A-type Granites with particular reference to Southeastern Australia. Contributions to Mineralogy and Petrology 80, 189200.CrossRefGoogle Scholar
Cong, F, Wu, FY, Li, WC, He, DF, Zun, ZB, Huang, XM, Hu, ZZ and Zhao, H (2020b) Petrogenesis of the Late Triassic Mengsong strongly peraluminous granites in the southeastern Tibetan Plateau: highly fractionated from crystal mush. International Geology Review. doi: 10.1080/00206814.2020.1839975.Google Scholar
Cong, F, Wu, FY, Li, WC, Mou, CL, Huang, XM, Wang, BD, Hu, FY and Peng, ZM (2020a) Origin of the Triassic Lincang granites in the southeastern Tibetan Plateau: crystallization from crystal mush. Lithos 360–361, 105452. doi: 10.1016/j.lithos.2020.105452.CrossRefGoogle Scholar
Creaser, RA, Price, RC and Wormald, RJ (1991) A-type granites revisited: assessment of a residual-source model. Geology 19, 163–6.2.3.CO;2>CrossRefGoogle Scholar
de Silva, SL and Gosnold, WD (2007) Episodic construction of batholiths: insights from the spatiotemporal development of an ignimbrite flare-up. Journal of Volcanology and Geothermal Research 167, 320–35.CrossRefGoogle Scholar
Deng, J, Wang, CM, Zi, JW, Xia, R and Li, Q (2018) Constraining subduction-collision processes of the Paleo-Tethys along the Changning-Menglian Suture: new zircon U–Pb ages and Sr-Nd-Pb-Hf-O isotopes of the Lincang Batholith. Gondwana Research 62, 7592.CrossRefGoogle Scholar
Dong, GC, Mo, XX, Zhao, ZD, Zhu, DC, Goodman, RC, Kong, HL and Wang, S (2013) Zircon U–Pb dating and the petrological and geochemical constraints on Lincang granite in Western Yunnan, China: implications for the closure of the Paleo-Tethys Ocean. Journal of Asian Earth Sciences 62, 282–94.CrossRefGoogle Scholar
Eby, GN (1990) The A-type granitoids: a review of their occurrence and chemical characteristics and speculations on their petrogenesis. Lithos 26, 115–34.CrossRefGoogle Scholar
Eby, GN (1992) Chemical subdivision of the A-type granitoids: petrogenetic and tectonic implications. Geology 20, 641–4.2.3.CO;2>CrossRefGoogle Scholar
Feng, QL (2002) Stratigraphy of volcanic rocks in the Changning-Menglian belt in Southwestern Yunnan, China. Journal of Asian Earth Sciences 20, 657–64.CrossRefGoogle Scholar
Foland, KA and Allen, JC (1991) Magma sources for Mesozoic anorogenic granites of the White Mountain magma series, New England, USA. Contributions to Mineralogy and Petrology 109, 195211.CrossRefGoogle Scholar
Frost, BR, Barnes, CG, Collins, WJ, Arculus, RJ, Ellis, DJ and Frost, CD (2001) A geochemical classification for granitic rocks. Journal of Petrology 42, 2033–48.CrossRefGoogle Scholar
Gardiner, NJ, Searle, MP, Morley, CK, Whitehouse, MP, Spencer, CJ and Robb, LJ (2016) The closure of Palaeo-Tethys in Eastern Myanmar and Northern Thailand: new insights from zircon U–Pb and Hf isotope data. Gondwana Research 39, 401–22.CrossRefGoogle Scholar
Goodman, RJ (1972) The distribution of Ga and Rb in coexisting groundmass and phenocryst phases of some basic volcanic rocks. Geochimica et Cosmochimica Acta 36, 303–17.CrossRefGoogle Scholar
Griffin, WL, Pearson, NJ, Belousova, E, Jackson, SE, van Achterbergh, E, O’Reilly, SY and Shee, SR (2000) The Hf isotope composition of cratonic mantle: LAM-MC-ICPMS analysis of zircon megacrysts in kimberlites. Geochimica et Cosmochimica Acta 64, 133–47.CrossRefGoogle Scholar
Griffin, WL, Wang, X, Jackson, SE, Pearson, NJ, O’Reilly, SY, Xu, XS and Zhou, XM (2002) Zircon chemistry and magma mixing, SE China: in-situ analysis of Hf isotopes, Tonglu and Pingtan igneous complexes. Lithos 61, 237–69.CrossRefGoogle Scholar
Hennig, D, Lehmann, B, Frei, D, Belyatsky, B, Zhao, XF, Cabral, AR, Zeng, PS, Zhou, MF and Schmidt, K (2009) Early Permian seafloor to continental arc magmatism in the eastern Paleo-Tethys: U–Pb age and Nd-Sr isotope data from the southern Lancangjiang zone, Yunnan, China. Lithos 113, 408–22.CrossRefGoogle Scholar
Huber, C, Bachmann, O and Dufek, J (2012) Crystal-poor versus crystal-rich ignimbrites: a competition between stirring and reactivation. Geology 40, 115–18.CrossRefGoogle Scholar
Jackson, MD, Blundy, J and Sparks, RSJ (2018) Chemical differentiation, cold storage and remobilization of magma in the Earth’s crust. Nature 564, 405–9.CrossRefGoogle ScholarPubMed
Jian, P, Liu, D, Kröner, A, Zhang, Q, Wang, Y, Sun, X and Zhang, W (2009) Devonian to Permian plate tectonic cycle of the Paleo-Tethys Orogen in southwest China (II): insights from zircon ages of ophiolites, arc/back-arc assemblages and within-plate igneous rocks and generation of the Emeishan CFB province. Lithos 113, 767–84.CrossRefGoogle Scholar
King, PL, White, AJR, Chappell, BW and Allen, CM (1997) Characterization and origin of aluminous A-type granites from the Lachlan Fold Belt, Southeastern Australia. Journal of Petrology 38, 371–91.CrossRefGoogle Scholar
Kong, HL, Dong, GC, Mo, XX, Zhao, ZD, Zhu, DC, Wang, S, Li, R and Wang, QL (2012) Petrogenesis of Lincang granites in Sanjiang area of western Yunnan Province: constraints from geochemistry, zircon U–Pb geochronology and Hf isotope. Acta Petrologica Sinica 28, 1438–52 (in Chinese with English abstract).Google Scholar
Li, J, Sun, ZB, Huang, L, Xu, GX, Tian, SM, Deng, RH and Zhou, K (2017) P-T-t path and geological significance of retrograded eclogites from Mengku area in western Yunnnan Province, China. Acta Petrologica Sinica, 33, 2285–301 (in Chinese with English abstract).Google Scholar
Liao, SY, Yin, FG, Sun, ZM, Wang, DB, Tang, Y and Sun, J (2013) Early middle Triassic mafic dikes from the Baoshan subterrane, western Yunnan: implications for the tectonic evolution of the Palaeo-Tethys in Southeast Asia. International Geology Review 55, 976–93.CrossRefGoogle Scholar
Lipman, PW and Bachmann, O (2015) Ignimbrites to batholiths: integrating perspectives from geological, geophysical, and geochronological data. Geosphere 11, 705–43.CrossRefGoogle Scholar
Liu, YS, Hu, ZC, Gao, S, Günther, D, Xu, J, Gao, CG and Chen, HH (2008) In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard. Chemical Geology 257, 3443.CrossRefGoogle Scholar
Loiselle, MC and Wones, DR (1979) Characteristics and origin of anorogenic granites. Geological Society of America Abstracts with Programs 11, 468.Google Scholar
Metcalfe, I (2013) Gondwana dispersion and Asian accretion: tectonic and palaeogeographic evolution of eastern Tethys. Journal of Asian Earth Sciences 66, 133.CrossRefGoogle Scholar
Miller, CF and Miller, JS (2002) Contrasting stratified plutons exposed in tilt blocks, Eldorado Mountains, Colorado River Rift, NV, USA. Lithos 61, 209–24.CrossRefGoogle Scholar
Morel, MLA, Nebel, O, Nebel-Jacobsen, YJ, Miller, JS and Vroon, PZ (2008) Hafnium isotope characterization of the GJ-1 zircon reference material by solution and laser-ablation MC-ICPMS. Chemical Geology 255, 231–5.CrossRefGoogle Scholar
Nie, F, Dong, GC, Mo, XX, Zhu, DC, Dong, ML and Wang, X (2012) Geochemistry, zircon U–Pb chronology of the Triassic granites in the Changning–Menglian suture zone and their implications. Acta Petrologica Sinica 28, 1465–76 (in Chinese with English abstract).Google Scholar
Peng, T.P., Wang, Y.J., Fan, W.M., Liu, D.Y., Shi, Y.R., Miao, L.C., 2006. SHRIMP zircon U–Pb geochronology of early Mesozoic felsic igneous rocks from the southern Lancangjiang and its tectonic implications. Science in China Series D: Earth Sciences 49, 1032–42.CrossRefGoogle Scholar
Peng, TP, Wilde, SA, Wang, YJ, Fan, WM and Peng, BX (2013) Mid-Triassic felsic igneous rocks from the southern Lancangjiang Zone, SW China: petrogenesis and implications for the evolution of Paleo-Tethys. Lithos 168–169, 1532.CrossRefGoogle Scholar
Pitcher, WS (1982) Granite type and tectonic environment. In Mountain Building Processes (ed Hsu, KJ), pp. 1940. London: Academic Press.Google Scholar
Skjerlie, KP and Johnston, AD (1992) Vapor-absent melting at 10 kbar of a biotite- and amphibole-bearing tonalitic gneiss: implications for the generation of A-type granites. Geology 20, 263–6.2.3.CO;2>CrossRefGoogle Scholar
Söderlund, U, Patchett, PJ, Vervoort, JD and Isachsen, CE (2004) The 176Lu decay constant determined by Lu–Hf and U–Pb isotope systematics of Precambrian mafic intrusions. Earth and Planetary Science Letters 219, 311–24.CrossRefGoogle Scholar
Sone, M and Metcalfe, I (2008) Parallel Tethyan sutures in mainland Southeast Asia: new insights for Palaeo-Tethys closure and implications for the Indosinian orogeny. Comptes Rendus Geoscience 340, 166–79.CrossRefGoogle Scholar
Sun, SS and McDonough, WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In Magmatism in the Ocean Basins (eds. Saunders, AD and Norry, MJ), pp. 313–45. Geological Society of London, Special Publication no. 42.Google Scholar
Sylvester, PJ (1989) Post-collisional alkaline granites. Journal of Geology 97, 261–80.CrossRefGoogle Scholar
Turner, SP, Foden, JD and Morrison, RS (1992) Derivation of some A-type magmas by fractionation of basaltic magma: an example from the Padthaway Ridge, South Australia. Lithos 28, 151–79.CrossRefGoogle Scholar
Wang, CM, Deng, J, Santosh, M, Lu, YJ, McCuaig, TC, Carranza, EJM and Wang, QF (2015) Age and origin of the Bulangshan and Mengsong granitoids and their significance for post-collisional tectonics in the Changning-Menglian Paleo-Tethys Orogen. Journal of Asian Earth Sciences 113, 656–76.CrossRefGoogle Scholar
Wang, E and Burchfiel, BC (1997) Interpretation of Cenozoic tectonics in the right-lateral accommodation zone between the Ailao Shan Shear Zone and the Eastern Himalayan Syntaxis. International Geology Review 39, 191219.CrossRefGoogle Scholar
Wang, F, Liu, FL, Liu, PH, Shi, JR and Cai, J (2014) Petrogenesis of Lincang granites in the south of Lancangjiang area: constrain from geochemistry and zircon U–Pb geochronology. Acta Petrologica Sinica 30, 3034–50 (in Chinese with English abstract).Google Scholar
Wang, HN, Liu, FL, Li, J, Sun, ZB, Ji, L, Tian, ZH, Liu, LS and Santosh, M (2018) Petrology, geochemistry and P-T-t path of lawsonite-bearing retrograded eclogites in the Changning-Menglian orogenic belt, southeast Tibetan Plateau. Journal of Metamorphic Geology 37, 439478. doi: 10.1111/jmg.12462.CrossRefGoogle Scholar
Wang, YJ, He, HY, Cawood, PA, Srithai, B, Feng, QL, Fan, WM, Zhang, YZ and Qian, X (2016) Geochronological, elemental and Sr-Nd-Hf-O isotopic constraints on the petrogenesis of the Triassic post-collisional granitic rocks in NW Thailand and its Paleotethyan implications. Lithos 266–267, 264–86.CrossRefGoogle Scholar
Wang, YJ, Qian, X, Cawood, PA, Liu, HC, Feng, QL, Zhao, GC, Zhang, YH, He, HY and Zhang, PZ (2018) Closure of the East Paleotethyan Ocean and amalgamation of the Eastern Cimmerian and Southeast Asia continental fragments. Earth-Science Reviews 186, 195230.CrossRefGoogle Scholar
Wang, YJ, Zhang, AM, Fan, WM, Peng, TP, Zhang, FF, Zhang, YH and Bi, XW (2010) Petrogenesis of late Triassic post-collisional basaltic rocks of the Lancangjiang tectonic zone, southwest China, and tectonic implications for the evolution of the eastern Paleotethys: geochronological and geochemical constraints. Lithos 120, 529–46.CrossRefGoogle Scholar
Watson, EB and Harrison, TM (1983) Zircon saturation revisited: temperature and composition effects in a variety of crustal magma types. Earth and Planetary Science Letters 64, 295304.CrossRefGoogle Scholar
Wei, C, Qi, XX, Chang, YL, Ji, FB and Zhang, SQ (2016) Identification on age of Xiaodingxi Formation volcanic rocks in central-sourthern Lancangjiang Orogeny and its tectonic implication. Acta Geologica Sinica 90, 3192–214 (in Chinese with English abstract).Google Scholar
Whalen, JB, Currie, KL and Chappell, BW (1987) A-type granites: geochemical characteristics, discrimination and petrogenesis. Contributions to Mineralogy and Petrology 95, 407–19.CrossRefGoogle Scholar
Whalen, JB, Jenner, GA, Longstaffe, FJ, Robert, F and Gariepy, C (1996) Geochemical and isotopic (O, Nd, Pb and Sr) constraints on A-type granite: petrogenesis based on the Topsails Igneous Suite, Newfoundland Appalachians. Journal of Petrology 37, 1463–89.CrossRefGoogle Scholar
Wu, FY, Jahn, BM, Wilde, SA, Lo, CH, Yui, TF, Lin, Q, Ge, WC and Sun, DY (2003) Highly fractionated I-type granites in NE China (I): geochronology and petrogenesis. Lithos 66, 241–73.CrossRefGoogle Scholar
Wu, FY, Jahn, BM, Wilde, S and Sun, DY (2000) Phanerozoic crustal growth: U–Pb and Sr-Nd isotopic evidence from the granites in northeastern China. Tectonophysics 328, 89113.CrossRefGoogle Scholar
Wu, FY, Yang, YH, Xie, LW, Yang, JH and Xu, P (2006) Hf isotopic compositions of the standard zircons and baddeleyites used in U–Pb geochronology. Chemical Geology 234, 105–26.CrossRefGoogle Scholar
YBGMR (Bureau of Geology and Mineral Resources of Yunnan Province) (1990) Regional Geology of Yunnan Province. Beijing: Geological Publishing House, —729 pp. (in Chinese).Google Scholar
Zhang, RY, Cong, BL, Maruyamma, S and Liou, JG (1993) Metamorphism and tectonic evolution of the Lancang paired metamorphic belts, south-western China. Journal of Metamorphic Geology 11, 605–19.CrossRefGoogle Scholar
Zhao, F, Li, GJ, Zhang, PF, Wang, CB, Sun, ZB and Tang, X (2018) Petrogenesis and tectonic implications of the Lincang batholith in the Sanjiang, Southwest China: constraints by geochemistry, zircon U–Pb chronology and Hf isotope. Acta Petrologica Sinica 34, 1397–412 (in Chinese with English abstract).Google Scholar
Zhong, DL (1998) The Paleotethys Orogenic Belt in West of Sichuan and Yunnan. Beijing: Science Publishing House, pp. 1230 (in Chinese).Google Scholar