Zircon U–Pb ages and O–Hf isotopes of Quaternary trachytes from the East Sea: Implications for the genesis of low-δ¹⁸O magmas

Abstract

Quaternary intraplate magmatism formed several volcanic islands and seamounts, including Dokdo (DD), Ulleungdo (UD), Simheungtack (ST), Anyongbok, and Isabu in the southwest of the East Sea back-arc basin. In this study, we present whole-rock geochemical, zircon U–Pb age, and in situ O–Hf isotope data for the submerged volcanic rocks from DD, UD, and ST to provide new insights into the eruption timing of these volcanoes and constrain the magma evolution processes. All samples used in this study were trachytes and exhibited ferroan, alkalic, and metaluminous to weakly peraluminous characteristics. They showed light rare earth element (REE)-enriched patterns with (La/Yb)_N ratios of 25.3–31.7 and mostly negative Eu anomalies in a chondrite-normalized REE plot. In addition, they were enriched in large-ion lithophile elements and high field strength elements; they exhibited positive Pb anomalies and strongly negative Ba, Sr, P, and Ti anomalies. The zircons yielded a weighted-mean ²⁰⁶Pb/²³⁸U age of 2.61, 0.348–0.704, and 2.76–2.94 Ma for the DD, UD, and ST trachytes, respectively. All zircons exhibited lower δ¹⁸O values than normal depleted mantle values, regardless of the crystallization age and spatial distribution of volcanoes. The δ¹⁸O values showed no correlation with U contents or Th/U ratios, indicating that the low δ¹⁸O signatures were of primary magmatic origin. The Hf isotopic compositions of the zircons were relatively heterogeneous but predominately characterized by positive ε_Hf values. Binary O–Hf mixing modeling revealed that low-δ¹⁸O rocks with positive ε_Hf values from the UD and ST volcanoes were derived from a hybrid source of recycled juvenile crustal materials with low-δ¹⁸O and positive ε_Hf signatures and an enriched mantle source with normal δ¹⁸O and negative ε_Hf values. The juvenile oceanic crust in the source was likely metasomatized by seawater at high temperatures prior to melting. In contrast, the felsic magma that formed the DD volcanoes may have assimilated with regional basement rocks (Triassic–Jurassic granitoids), resulting in increased δ¹⁸O values and decreased ε_Hf values relative to those of the UD and ST volcanoes. Our study highlights the significant contribution of recycled oceanic crust materials to the generation of the Quaternary magmas.

Keywords

Quaternary intraplate volcanism / East Sea / Zircon O–Hf isotopes / Low-δ¹⁸O magma / Recycled juvenile oceanic crust

References

L. Akin, E. Aydar, A.K. Schmitt, H.E. Çubukçu, A. Gerdes. Zircon geochronology and O-Hf isotopes of Cappadocian ignimbrites: new insights into continental crustal architecture underneath the Central Anatolian Volcanic Province. Turkey. Gondwana Res., 91 (2021), pp. 166-187,

I.N. Bindeman, A.K. Schmitt, D.A.D. Evans. Limits of hydrosphere-lithosphere interaction: Origin of the lowest-known δ18O silicate rock on Earth in the Paleoproterozoic Karelian rift. Geology, 38 (2010), pp. 631-634,

I.N. Bindeman, A.K. Schmitt, C.C. Lundstrom, R.L. Hervig. Stability of zircon and its isotopic ratios in high-temperature fluids: Long-term (4 months) isotope exchange experiment at 850°C and 50 MPa. Front. Earth Sci., 6 (2018), p. 59,

I.N. Bindeman, J.W. Valley. Low-δ18O Rhyolites from Yellowstone: Magmatic evolution based on analyses of zircons and individual phenocrysts. J. Petrol., 42 (2001), pp. 1491-1517,

Bindeman, I., 2008. Oxygen isotopes in mantle and crustal magmas as revealed by single crystal analysis. Rev. Mineral. Geochem. 69, 445–478. http://doi.org/

J. Blichert-Toft, F. Albarède. The Lu–Hf isotope geochemistry of chondrites and the evolution of the mantle-crust system. Earth Planet. Sci. Lett., 148 (1997), pp. 243-258,

M. Brenna, R. Price, S.J. Cronin, I.E.M. Smith, Y.K. Sohn, G. Bom Kim, R. Maas. Final magma storage depth modulation of explosivity and trachyte-phonolite genesis at an intraplate volcano: A case study from Ulleung Island, South Korea. J. Petrol., 55 (2014), pp. 709-747,

P. Castillo, C.M. Fanning, R.J. Pankhurst, F. Hervé, C.W. Rapela. Zircon O- and Hf-isotope constraints on the genesis and tectonic significance of Permian magmatism in Patagonia. J. Geol. Soc., 174 (2017), pp. 803-816,

S.S. Chen, S.G. Lee, T.J. Lee, Y.S. Lee, J.Q. Liu. Multi-stage magmatic plumbing system of the volcano: A case study from Ulleung Island, South Korea. Lithos, 314–315 (2018), pp. 201-215,

S.S. Chen, S.G. Lee, S. Simutė, A. Fichtner, T.J. Lee, Y.S. Lee, J.Q. Liu, R. Gao. Geochemical and seismic tomography constraints of two-layer magma chambers beneath the bimodal volcanism: A case study of late Cenozoic volcanic rocks from Ulleung Island and Mt. Changbai (Paektu). Chem. Geol., 581 (2021), pp. 201-215,

T.-Y. Chen, H.-F. Ling, M. Frank, K.-D. Zhao, S.-Y. Jiang. Zircon effect alone insufficient to generate seawater Nd–Hf isotope relationships. Geochem. Geophys. Geosystems, 12 (2011), p. Q05003,

A.C.S. Cheong, H.J. Jo. Tectonomagmatic evolution of a Jurassic Cordilleran flare-up along the Korean Peninsula: Geochronological and geochemical constraints from granitoid rocks. Gondwana Res., 88 (2020), pp. 21-44,

A.C.S. Cheong, Y.K. Sohn, Y.J. Jeong, H.J. Jo, K.H. Park, Y.S. Lee, X.H. Li. Latest Pleistocene crustal cannibalization at Baekdusan (Changbaishan) as traced by oxygen isotopes of zircon from the Millennium Eruption. Lithos, 284–285 (2017), pp. 132-137,

D.-L. Cho, T.-H. Lee, Y. Takahashi, T. Kato, K. Yi, S. Lee, A.C.S. Cheong. Zircon U-Pb geochronology and Hf isotope geochemistry of magmatic and metamorphic rocks from the Hida Belt, southwest Japan. Geosci. Front., 12 (2021), Article 101145,

S.H. Choi. Geochemistry and petrogenesis of Quaternary volcanic rocks from Ulleung Island. South Korea. Lithos, 380–381 (2021), Article 105874,

H.-O. Choi, S.H. Choi, Y. Yu. Isotope geochemistry of Jeongok basalts, northernmost South Korea: Implications for the enriched mantle end-member component. J. Asian Earth Sci., 91 (2014), pp. 56-68,

H.-O. Choi, S.H. Choi, Y.S. Lee, J.-S. Ryu, D.-C. Lee, S.-G. Lee, Y.K. Sohn, J.-q. Liu. Petrogenesis and mantle source characteristics of the late Cenozoic Baekdusan (Changbaishan) basalts. North China Craton. Gondwana Res., 78 (2020), pp. 156-171,

H.-O. Choi, J. Kim, J. Oh, C.H. Kim, S.Y. Choi, W.H. Kim, C.H. Park. Petrogenesis of submarine volcanic rocks dredged from Dokdo, Ulleungdo, and the neighboring seamounts in the East Sea: Constraints from mineral chemistry, geochemistry, and 40Ar/39Ar ages. Lithos, 426–427 (2022), Article 106783,

S.H. Choi, S.A. Liu. Zinc isotopic systematics of the Mt. Baekdu and Jeju Island intraplate basalts in Korea, and implications for mantle source lithologies. Lithos, 416–417 (2022), Article 106659,

S.H. Choi, S.B. Mukasa, S.-T. Kwon, A.V. Andronikov. Sr, Nd, Pb and Hf isotopic compositions of late Cenozoic alkali basalts in South Korea: Evidence for mixing between the two dominant asthenospheric mantle domains beneath East Asia. Chem. Geol., 232 (2006), pp. 134-151,

S.K. Chough, E. Barg. Tectonic history of Ulleung basin margin, East Sea (Sea of Japan). Geology, 15 (1987), pp. 45-48

N.-C. Chu, R.N. Taylor, V. Chavagnac, R.W. Nesbitt, R.M. Boella, J.A. Milton, C.R. German, G. Bayon, K. Burton. Hf isotope ratio analysis using multi-collector inductively coupled plasma mass spectrometry: an evaluation of isobaric interference corrections. J. Anal. at. Spectrom., 17 (2002), pp. 1567-1574,

S.-L. Chung, M.-F. Chu, J. Ji, S.Y. O’Reilly, N.J. Pearson, D. Liu, T.-Y. Lee, C.-H. Lo. The nature and timing of crustal thickening in Southern Tibet: geochemical and zircon Hf isotopic constraints from postcollisional adakites. Tectonophysics, 477 (2009), pp. 36-48,

J. Cornet, O. Laurent, J.F. Wotzlaw, M.A. Antonelli, J. Otamendi, G.W. Bergantz, O. Bachmann. Reworking subducted sediments in arc magmas and the isotopic diversity of the continental crust: The case of the Ordovician Famatinian crustal section. Argentina. Earth Planet. Sci. Lett., 595 (2022), Article 117706,

M.J. Defant, M.S. Drummond. Helens: Potential example of the partial melting of the subducted lithosphere in a volcanic arc. Geology, 21 (1993), pp. 547-550

D.L. Drew, I.N. Bindeman, K.E. Watts, A.K. Schmitt, B. Fu, M. McCurry. Crustal-scale recycling in caldera complexes and rift zones along the Yellowstone hotspot track: O and Hf isotopic evidence in diverse zircons from voluminous rhyolites of the Picabo volcanic field. Idaho. Earth Planet. Sci. Lett., 381 (2013), pp. 63-77,

J.M. Eiler. Oxygen isotope variations of basaltic lavas and upper mantle rocks. Rev. Mineral. Geochem., 43 (2001), pp. 319-364,

B.R. Frost, C.G. Barnes, W.J. Collins, R.J. Arculus, D.J. Ellis, C.D. Frost. A geochemical classification for granitic rocks. J. Petrol., 42 (2001), pp. 2033-2048,

Y.Y. Gao, X.H. Li, W.L. Griffin, S.Y. O’Reilly, Y.F. Wang. Screening criteria for reliable U-Pb geochronology and oxygen isotope analysis in uranium-rich zircons: A case study from the Suzhou A-type granites, SE China. Lithos, 192–195 (2014), pp. 180-191,

Z. Guo, H. Zou. Temperature and Hf–O isotope correlations of young erupted zircons from Tengchong (SE Tibet): Assimilation fractional crystallization during monotonic cooling. Geosci. Front., 14 (2023), Article 101497,

P.W.O. Hoskin, U. Schaltegger. The composition of zircon and igneous and metamorphic petrogenesis. Rev. Mineral. Geochem., 53 (2003), pp. 27-62,

Y.S. Huang, Q.L. Li, Y. Liu, P.P. Liu, S.L. Chung, X.H. Li. 238U–206Pb dating of U-series disequilibrium zircons by secondary ion mass spectrometry. J. Anal. at. Spectrom., 36 (2021), pp. 999-1006,

D.-L. Huang, X.-L. Wang, X.-P. Xia, Y.-S. Wan, F.-F. Zhang, J.-Y. Li, D.-H. Du. Neoproterozoic low-δ18O zircons revisited: implications for Rodinia configuration. Geophys. Res. Lett., 46 (2019), pp. 678-688,

S.K. Hwang, J.H. Hwang, C.W. Kwon. Geological report of the Ulleungdo sheet: Scale 1: 50 ,000. Korea Institute of Geoscience and Mineral. Resources (2012)

Ingle, C., 1992. Subsidence of the Japan Sea: stratigraphic evidence from ODP sites and onshore sections, In: Tamaki, K., Suyehiro, K., Allan, J., McWilliams, M., et al. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 127/128, Pt 2: College Station, TX (Ocean Drilling Program) pp. 1197–1218.

A.I.S. Kemp, C.J. Hawkesworth, G.L. Foster, B.A. Paterson, J.D. Woodhead, J.M. Hergt, C.M. Gray, M.J. Whitehouse. Magmatic and crustal differentiation history of granitic rocks from Hf–O isotopes in zircon. Science, 315 (2007), pp. 980-983,

K.-H. Kim. K-Ar ages and Nd–Sr isotopes of Dokdo alkali volcanic rocks in the East Sea. South Korea. J. Geol. Soc. Korea, 36 (2000), pp. 313-324

J.I. Kim, S.H. Choi, G.W. Koh, J.B. Park, J.S. Ryu. Petrogenesis and mantle source characteristics of volcanic rocks on Jeju Island, South Korea. Lithos, 326–327 (2019), pp. 476-490,

S. Kim, S.H. Choi. Geochemical studies on the mantle source lithologies of late Cenozoic alkali basalts from Baengnyeong, Pyeongtaek, and Asan in the Korean Peninsula. Lithos, 404–405 (2021), Article 106434,

G.B. Kim, S.J. Cronin, W.S. Yoon, Y.K. Sohn. Post 19 ka B.P. eruptive history of Ulleung Island, Korea, inferred from an intra-caldera pyroclastic sequence. Bull. Volcanol., 76 (2014), pp. 1-26,

K.H. Kim, K. Nagao, H. Sumino, T. Tanaka, T. Hayashi, T. Nakamura, J.I. Lee. He–Ar and Nd–Sr isotopic compositions of late Pleistocene felsic plutonic back arc basin rocks from Ulleungdo volcanic island, South Korea: Implications for the genesis of young plutonic rocks in a back arc basin. Chem. Geol., 253 (2008), pp. 180-195,

C.H. Kim, C.H. Park, E.Y. Jeong, Y.T. Ko, J.S. Hwang, T.M. Shim. Flexural isostasy and loading sequence of the Dokdo seamounts on the Ulleung Basin in the East Sea (Sea of Japan). J. Asian Earth Sci., 35 (2009), pp. 459-468,

C.H. Kim, C.H. Park, M.H. Lee, S.Y. Choi, H.T. Jou. A study on detailed bathymetry and geophysical characteristics of the summit of the Dokdo Volcano. Econ. Environ. Geol., 45 (2012), pp. 685-695

C.H. Kim, J.W. Park, M.H. Lee, C.H. Park. Detailed Bathymetry and Submarine Terraces in the Coastal Area of the Dokdo Volcano in the Ulleung Basin, the East Sea (Sea of Japan). J. Coast. Res., 65 (2013), pp. 523-528,

K.H. Kim, T. Tanaka, K. Nagao, S.K. Jang. Nd and Sr isotope and K-Ar ages of the Ulreungdo alkali volcanic rocks in the East Sea, South Korea. Geochem. J., 33 (1999), pp. 317-341,

G.B. Kim, S.H. Yoon, S.K. Chough, Y.K. Kwon, B.J. Ryu. Seismic reflection study of acoustic basement in the South Korea Plateau, the Ulleung Interplain Gap, and the northern Ulleung Basin: Volcano-tectonic implications for Tertiary back-arc evolution in the southern East Sea. Tectonophysics, 504 (2011), pp. 43-56,

R.W. Le Maitre, P. Bateman, A. Dudek, J. Keller, M.J. Lameyre Le Bas, P.A. Sabine, R. Schmid, H. Sorensen, A. Streckeisen, A.R. Woolley, B. Zanettin. A Classification of Igneous Rocks and Glossary of Terms. Blackwell, Oxford (1989)

Kee, W.-S., Kim, B.C., Kihm, Y.H., Cho, D.-L., Lee, S.R., Lee, Y.S., 2012. Geological report of the Dokdo sheet: Scale 1:2,500. Korea Institute of Geoscience and Mineral Resources, pp. 91 (in Korean with English abstract).

Lee, J.I., Hur, S. do, Lee, M.J., Yoo, C.M., Park, B.-K., Kim, Y., Kwon, M.S., Nagao, K., 2002. Petrology and geochemistry of Dokdo volcanic rocks, East Sea. Ocean Polar Res. 24, 465–482 (in Korean with English abstract).

J.I. Lee, S.D. Hur, S. Huh, J.-H. Chun, S.J. Han. Geochemistry and Sr–Nd isotopic composition of granites sampled from the Korea Plateau. East Sea. J. Geol. Soc. Korea, 36 (2000), pp. 279-294

G.H. Lee, H.J. Kim, M.C. Suh, J.K. Hong. Crustal structure, volcanism, and opening mode of the Ulleung Basin, East Sea (Sea of Japan). Tectonophysics, 308 (1999), pp. 503-525,

X.H. Li, M. Faure, W. Lin, G. Manatschal. New isotopic constraints on age and magma genesis of an embryonic oceanic crust: The Chenaillet Ophiolite in the Western Alps. Lithos, 160–161 (2013), pp. 283-291,

J. Liebmann, C.L. Kirkland, J.B. Cliff, C.J. Spencer, A.J. Cavosie. Strategies towards robust interpretations of in situ zircon oxygen isotopes. Geosci. Front., 14 (2023), Article 101523,

M.W. Loewen, I.N. Bindeman. Oxygen isotope and trace element evidence for three-stage petrogenesis of the youngest episode (260–79 ka) of Yellowstone rhyolitic volcanism. Contrib. Mineral. Petrol., 170 (2015), pp. 1-25,

Ludwig, K.R., 2012. User’s Manual for Isoplot Version 3.75–4.15: A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronological Center Special Publication 5.

P.D. Maniar, P.M. Piccoli. Geological Society of America Bulletin Tectonic discrimination of granitoids Subscribe Tectonic discrimination of granitoids. GSA Bull., 101 (1989), pp. 635-643

J. Park, H. Lim, B. Myeong, Y. Deuk, M. Brenna. Basaltic cognate enclaves from Dokdo Island as a window for intraplate mafic alkaline OIB magma dynamics in a back–arc basin. Contrib. Mineral. Petrol., 177 (2022), p. 86,

P.J. Patchett, O. Kouvo, C.E. Hedge, M. Tatsumoto. Evolution of continental crust and mantle heterogeneity: Evidence from Hf isotopes. Contrib. Mineral. Petrol., 78 (1981), pp. 279-297,

C. Paton, J. Hellstrom, B. Paul, J. Woodhead, J. Hergt. Iolite: Freeware for the visualisation and processing of mass spectrometric data. J. Anal. at. Spectrom., 26 (2011), pp. 2508-2518

A. Petersson, A. Scherstén, A. Gerdes. Extensive reworking of Archaean crust within the Birimian terrane in Ghana as revealed by combined zircon U-Pb and Lu–Hf isotopes. Geosci. Front., 9 (2018), pp. 173-189,

P. Quelhas, Á.A. Dias, J. Mata, D.W. Davis, M.L. Ribeiro. High–precision geochronology of Mesozoic magmatism in Macao, Southeast China: Evidence for multistage granite emplacement. Geosci. Front., 11 (2020), pp. 243-263,

Y. Rojas-Agramonte, A. Garcia-Casco, A. Kemp, A. Kröner, J.A. Proenza, C. Lázaro, D. Liu. Recycling and transport of continental material through the mantle wedge above subduction zones: A Caribbean example. Earth Planet. Sci. Lett., 436 (2016), pp. 93-107,

W.A. Russell, D.A. Papanastassiou, T.A. Tombrello. Ca isotope fractionation on the Earth and other solar system materials. Geochim. Cosmochim. Acta, 42 (1978), pp. 1075-1090,

S. Sakata. A practical method for calculating the U-Pb age of Quaternary zircon: correction for common Pb and initial disequilibria. Geochem. J., 52 (2018), pp. 281-286,

S. Sakata, S. Hirakawa, H. Iwano, T. Danhara, M. Guillong, T. Hirata. A new approach for constraining the magnitude of initial disequilibrium in Quaternary zircons by coupled uranium and thorium decay series dating. Quat. Geochronol., 38 (2017), pp. 1-12,

U. Schärer, J. Hamet, C.J. Allègre. The Transhimalaya (Gangdese) plutonism in the Ladakh region: a U-Pb and Rb–Sr study. Earth Planet. Sci. Lett., 67 (1984), pp. 327-339,

A.K. Schmitt. Ion microprobe analysis of (231Pa)/(235U) and an appraisal of protactinium partitioning in igneous zircon. Am. Mineral., 92 (2007), pp. 691-694,

J. Sláma, J. Košler, D.J. Condon, J.L. Crowley, A. Gerdes, J.M. Hanchar, M.S.A. Horstwood, G.A. Morris, L. Nasdala, N. Norberg, U. Schaltegger, B. Schoene, M.N. Tubrett, M.J. Whitehouse. Plešovice zircon – A new natural reference material for U-Pb and Hf isotopic microanalysis. Chem. Geol., 249 (2008), pp. 1-35,

Y.K. Sohn, K.H. Park. Geology and evolution of Tok Island. Korea. J. Geol. Soc. Korea, 30 (1994), pp. 242-261

Y.-S. Song, M.-E. Park, K.-H. Park. Ages and Evolutions of the Volcanic Rocks from Ulleung-do and Dok-do. J. Petrol. Soc. Korea, 15 (2006), pp. 72-80

J.S. Stacey, J.D. Kramers. Approximation of terrestrial lead isotope evolution by a two-stage model. Earth. Planet. Sci. Lett., 26 (1975), pp. 207-221,

Sun, S.-s., McDonough, W.F., 1989. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes, in: Saunders, A.D., Norry, M.J. (Eds.), Magmatism in the Ocean Basins. Geological Society, London, Special Publication 42, pp. 313–345.

Tamaki, K., Suyehiro, K., Allan, J., Ingle, J.C., Pisciotto, K.A., 1992. Tectonic synthesis and implications of Japan Sea ODP drilling. In: Tamaki, K., Suyehiro, K., Allan, J., McWilliams, M., et al. (Eds.), Proceedings of the Ocean Drilling Program, Scientific Results, 127/128, Pt 2: College Station, TX (Ocean Drilling Program), pp. 1333–1348. https://doi.org/10.2973/odp.proc.sr.127128-2.240.1992.

H.P. Taylor Jr.. Comparison of hydrothermal systems in layered gabbros and granites, and the origin of low-18O magmas. Magmatic Processes: Physicochemical Principles. Special Publication, No. 1, Geochemical Society, San Antonio, TX (1987), pp. 337-357

J. Troch, B.S. Ellis, C. Harris, O. Bachmann, I.N. Bindeman. Low-δ18O silicic magmas on Earth: A review. Earth Sci. Rev., 208 (2020), Article 103299,

J.W. Valley. Oxygen isotopes in zircon. Rev. Mineral. Geochem., 53 (2003), pp. 343-385,

J.W. Valley, C.M. Graham. Ion microprobe analysis of oxygen isotope ratios in quartz from Skye granite: Healed micro-cracks, fluid flow, and hydrothermal exchange. Contrib. Mineral. Petrol., 124 (1996), pp. 225-234,

J.D. Vervoort, P.J. Patchett, U. Söderlund, M. Baker. Isotopic composition of Yb and the determination of Lu concentrations and Lu/Hf ratios by isotope dilution using MC-ICPMS. Geochem. Geophys. Geosystems, 5 (2004), p. Q11002,

J.D. Vervoort, T. Plank, J. Prytulak. The Hf–Nd isotopic composition of marine sediments. Geochim. Cosmochim. Acta, 75 (2011), pp. 5903-5926,

Z.W. Wang, F.P. Pei, W.L. Xu, H.H. Cao, Z.J. Wang, Y. Zhang. Tectonic evolution of the eastern Central Asian Orogenic Belt: Evidence from zircon U-Pb–Hf isotopes and geochemistry of early Paleozoic rocks in Yanbian region. NE China. Gondwana Res., 38 (2016), pp. 334-350,

E.B. Watson, D.J. Cherniak. Oxygen diffusion in zircon. Earth Planet. Sci. Lett., 148 (1997), pp. 527-544,

K.E. Watts, I.N. Bindeman, A.K. Schmitt. Large-volume rhyolite genesis in caldera complexes of the Snake River Plain: Insights from the Kilgore Tuff of the Heise volcanic field, Idaho, with comparison to Yellowstone and Bruneau-Jarbidge rhyolites. J. Petrol., 52 (2011), pp. 857-890,

C.-S. Wei, Z.-F. Zhao, M.J. Spicuzza. Zircon oxygen isotopic constraint on the sources of late Mesozoic A-type granites in eastern China. Chem. Geol., 250 (2008), pp. 1-15,

M. Wiedenbeck, P. Allé, F. Corfu, W.L. Griffin, M. Meier, F.V. Oberli, A. Quadt, J.C. Roddick, W. Spiegel. Three natural zircon standards for U-Th-Pb, Lu-Hf, trace element and REE analyses. Geostand. Newsl., 19 (1995), pp. 1-23,

S. Xu, K. Uto, Y.K. Kim. K-Ar dating of volcanic rocks from Ulreung Island. Korea. Geochem. J., 32 (1998), pp. 117-123,

J. Xu, X.P. Xia, Q. Wang, C.J. Spencer, B. He, C.K. Lai. Low-δ18O A-type granites in SW China: evidence for the interaction between the subducted Paleotethyan slab and the Emeishan mantle plume. GSA Bull., 134 (2022), pp. 81-93,

W.-B. Yang, H.-C. Niu, P. Hollings, S.E. Zurevinski, N.-B. Li. The role of recycled oceanic crust in the generation of alkaline A-type granites. J. Geophys. Res. Solid Earth, 122 (2017), pp. 9775-9783,

Y. Zhang, M. Sun, J. Yin, C. Yuan, Z. Sun, X. Xia. Maturation of East Junggar oceanic arc related to supracrustal recycling driven by arc-arc collision: perspectives from zircon Hf-O isotopes. Int. J. Earth Sci., 111 (2022), pp. 2519-2533,

Y.S. Zhu, J.H. Yang, J.F. Sun, H. Wang. Zircon Hf–O isotope evidence for recycled oceanic and continental crust in the sources of alkaline rocks. Geology, 45 (2017), pp. 407-410

H. Zou, C.H. Hu, M. Santosh, H.F. Chen, C.C. Huang, X.W. Chen, H.K. Li, X. Jin, L.M. Yu, M. Li. Crust-derived felsic magmatism in the Emeishan large igneous Province: new evidence from zircon U-Pb–Hf–O isotope from the Yangtze Block. China. Geosci. Front., 13 (2022), Article 101369,