Geochemical and Hf isotopic compositions of Late Triassic–Early Jurassic intrusions of the Erguna Block, Northeast China: petrogenesis and tectonic implications

Gou, Jun; Dong, Sun; Ren, Yunsheng; Hou, Xue‐Gang; Yang, De‐Ping

doi:10.1080/00206814.2016.1266448

Cited by 35 publications

(23 citation statements)

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“…The 2.43–2.04 Ga zircon Hf T DM2 model ages of Palaeozoic granite and xenocrystic zircon reported by Ge et al () and Gou et al (), with negative ε Hf (t) values of −15.0 to −1.6, also imply the existence of Paleoproterozoic crust in the region. Neoarchean and Paleoproterozoic magmatism and the abundance of 2.60–1.75 Ga detrital zircon in metasedimentary rocks and xenocrystic zircon in igneous rocks also support the presence of Neoarchean–Paleoproterozoic crust (Miao et al, ; Shao, Li, Zhou, Wang, & Zhang, ; Sun, Ren, et al, ;Wu et al, ).…”

Section: Discussionmentioning

confidence: 68%

“…(a) Diagram of ε Hf (t) versus U-Pb age and (b) histogram of emplacement ages of mafic rocks, zircon Hf model ages, and xenocrystic and detrital zircon ages in the Erguna block. Neoarchean-Paleoproterozoic data from andShao et al (2015); Neoproterozoic data from; Cambrian-Ordovician data fromGe et al (2007) andZhao et al (2014); Late Triassic-Early Jurassic data fromSun, Gou, et al (2013),Tang et al (2016), andGou et al (2017); Late Jurassic-Early Cretaceous data fromFan et al (2003),Wang et al (2006), Zhang et al (2008), Ying et al (2010), Meng et al (2011), Xu et al (2011), and Sun, Gou, et al (2013) [Colour figure can be viewed at wileyonlinelibrary.com] 4.2 | Crustal growth of the Erguna Block Zircon Hf model ages of crustal rocks and U-Pb ages of xenocrystic zircon provide useful information about the age of crustal formation. Hf isotope data of zircon grains from the granites exposed in the Erguna Block record the complete crustal evolution.…”

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Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

et al. 2017

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The Wuma magmatic suite is a group of large granite plutons and small diorite stocks in the Erguna Block, northeast China. These intrusions were emplaced along the Mongol–Okhotsk Suture Zone during the late Permian–early Triassic (253–248 Ma). Significant chemical and isotopic diversity within the granites and diorites suggests variable formation conditions and the involvement of multiple magmatic sources. The granitic intrusions are dominantly characterized by moderate to large, uniform light rare earth element enrichments and variable heavy rare earth element depletions. Zircons from the Wuma granites have εHf(t) values of −6.0 to 0.5 and TDM2 ages of 1.6–1.2 Ga, suggesting that these granitic magmas were generated by partial melting of Mesoproterozoic continental crust. The diorites are compositionally similar to Andean plutonic rocks with moderate light rare earth element and heavy rare earth element fractionations and likely formed by partial melting of a sediment‐metasomatized mantle. The Wuma intrusions belong to the high‐K calc‐alkaline series and are characterized by a significant enrichment in large‐ion lithophile elements (e.g., Rb, Ba, K, and U) and depletion of high‐field strength elements (e.g., Nb, Ta, and Ti). These geochemical characteristics are typical of subduction‐related magmatism, which can be linked to the southward subduction of the Mongol–Okhotsk oceanic plate. Combined with data from published studies, our Hf isotopic analyses indicate 4 main periods of crustal growth beneath the Erguna Block: Mesoarchean (3.0–2.8 Ga), Neoarchean–Paleoproterozoic (2.6–1.8 Ga), Meso‐ to Neoproterozoic (1.6–0.7 Ga), and Phanerozoic (mainly Ordovician and Late Triassic–Early Cretaceous).

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confidence: 68%

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Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

et al. 2017

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“…Recently, Triassic igneous rocks and identification of timing of mineralization in the EB have demonstrated the southward subduction of the MO oceanic plate (Gou, Sun, Ren, Hou, & Yang, ; Li et al, ; Li, Xu, et al, ; Liu, Bagas, Jiang, & Wang, ; Liu, Li, He, Huangfu, & Liu, ; Tang et al, ). In addition, contemporaneous bimodal igneous rocks appeared in the eastern EB and western CGXR during the Late Triassic, implying that these areas were dominated by the MO tectonic domain (Tang, Sun, et al, ; Yang et al, ).…”

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confidence: 99%

Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

et al. 2018

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In this paper, we report on LA‐ICP‐MS zircon U–Pb dates of 14 Mesozoic volcanic rocks from the central Great Xing'an Range (CGXR). These data are integrated with the temporal and spatial distribution of local magmatism‐related Mesozoic mineralization, in an effort to develop an understanding of the geodynamic evolution of the region. Periodic magmatic events in the GXR date from ~1,703 through ~145 Ma. Mesozoic volcanism in the CGXR can be subdivided into three episodes: Triassic (250–205 Ma), Early–Middle Jurassic (182–165 Ma), and Late Jurassic–Early Cretaceous (155–115 Ma). A revision of the previously defined volcanic sequence is offered using a combination of our zircon U–Pb ages and published Mesozoic geological and geophysical evidence from northeast China. We propose that (a) Early–Middle Triassic volcanism in the CGXR resulted from subduction of the Paleo‐Asian oceanic plate; (b) Late Triassic volcanism was related to subduction of the Mongol–Okhotsk oceanic plate (especially near the Erguna Block) and subsequent extension after the closure of the Paleo‐Asian Ocean; (c) Early–Middle Jurassic volcanism was mainly controlled by the southward subduction of the Mongol–Okhotsk oceanic plate; (d) Late Jurassic–initial Early Cretaceous magmatism was initiated by closure of the Mongol–Okhotsk Ocean; and (e) late Early Cretaceous volcanism was induced following the final closure of the Mongol–Okhotsk Ocean and rollback of the Paleo‐Pacific oceanic plate.

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“…The Xinghuadukou Complex is mostly found in the Erguna Block, the northern most segment of the NE China, which is bounded by the Mongol‐Okhotsk Ocean (MOO) suture zone to the north and the Xinlin‐Xiguitu suture to the south. In this region, recent studies reported voluminous Palaeozoic‐Mesozoic igneous rocks related to the MOO tectonic regime (Gou, Sun, Hou, & Yang, ; Gou, Sun, Ren, Hou, & Yang, ; Li et al, ; Liu, Li, He, Huangfu, & Liu, ; Sun, Gou, et al, ; Tang et al, ; Tang, Xu, Wang, Zhao, & Li, ; Tang, Xu, Wang, Zhao, & Wang, ; Wang, Tang, Xu, & Wang, ) and the ophiolitic melange, high‐pressure metamorphic rocks, and collisional granitoids related to the evolution of the Palaeo‐Asian Ocean along the Xinlin‐Xiguitu suture, which constrained the timing of this suture (Feng et al, ; Feng et al, ; Feng et al, ; Miao, Zhang, & Jiao, ; Zhao, Takasu, Liu, & Li, ; Zhou et al, ). However, study on the Xinghuadukou Complex is limited.…”

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confidence: 99%

A ~2.5 Ga magmatic arc in NE China: New geochronological and geochemical evidence from the Xinghuadukou Complex

et al. 2019

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This study reports new LA‐ICP‐MS U–Pb zircon ages from the Xinghuadukou Complex from the Erguna Block, NE China. A suite of the Palaeoproterozoic orthogneiss and a suite of the Vendian to Cambrian paragneiss are recognized with the co‐magmatic age of 2,464 ± 26 Ma and the maximum depositional age of 561 ± 10 Ma for their igneous and sedimentary protolith, respectively. The trace element geochemical analysis suggests a strong arc affinity for our orthogneiss, characterized by the enriched LREE and LILE, the elevated incompatible and fluid‐mobile elements and the depleted yet negligible fractionated HREE and HFSE. By comparing our samples with a suite of Cenozoic mantle‐derived granitoids from Hokkaido and a suite of Mesozoic active continental margin volcanics from NE China, it is suggested that the igneous protolith of our near Archaean orthogneiss formed in an arc environment and probably derived from the prior arc crust. The trace element features of the paragneiss highly resemble that of the orthogneiss, showing arc affinity, which suggests an arc basin environment for the sedimentary protolith of our Vendian to Cambrian paragneiss. Based on the synthesized evidence from the Xinghuadukou Complex, a new tectonic scenario is proposed that the basement of the Erguna Block might be forged by the accretion and collision of multi‐episodic igneous arcs and their correlated arc basins, which was probably lasting through the Proterozoic and followed by the Pan‐African period high‐grade metamorphism. The consolidated Erguna Block was later involved into the CAOB tectonic domain, modified and disrupted with the assembly of NE China.

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Geochemical and Hf isotopic compositions of Late Triassic–Early Jurassic intrusions of the Erguna Block, Northeast China: petrogenesis and tectonic implications

Cited by 35 publications

References 66 publications

Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

Geochronology, geochemistry, and zircon Hf isotopes of the late Permian–early Triassic Wuma intrusions in the Erguna Block, northeast China: Petrogenesis and implications for tectonic setting and crustal growth

Timing and evolution of Mesozoic volcanism in the central Great Xing'an Range, northeastern China

A ~2.5 Ga magmatic arc in NE China: New geochronological and geochemical evidence from the Xinghuadukou Complex

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