Mid-Neoproterozoic arc magmatism in the northeastern margin of the Indochina block, SW China: Geochronological and petrogenetic constraints and implications for Gondwana assembly

Qi, Xiaoguang; Santosh, M.; Zhu, Luhua; Zhao, Yan; Hu, Zhenxin; Zhang, Chao; Ji, Fengbao

doi:10.1016/j.precamres.2014.02.008

Cited by 58 publications

(11 citation statements)

References 96 publications

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“…1) (Li et al, 2002;Zhou et al, 2002a;Z. Li, 2003;Zhou et al, 2006;Wang et al, 2011;Cai et al, 2014;Qi et al, 2012Qi et al, , 2014. This belt has recently been suggested as a Neoproterozoic arc (i.e., Hannan-Panxi-Yuanjiang arc), comprising Neoproterozoic (Tonian to Cryogenian; 880-720 Ma) arc-related igneous rocks (Zhou et al, 2002b(Zhou et al, , 2006Sun et al, 2008Sun et al, , 2009).…”

Section: Overviewmentioning

confidence: 99%

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

et al. 2016

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Section: Overviewmentioning

confidence: 99%

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

et al. 2016

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“…Confirmation of the existence of Paleoproterozoic rocks in northern Vietnam will provide a valuable first order constraint on the tectonic evolution of the central and eastern Asia and these results can be compared with similar studies of rocks in other major Precambrian units found across Asia (e.g., Lan et al, 2003Lan et al, , 2011Trung et al, 2006;Aihara et al, 2007;Hieu et al, 2009Hieu et al, , 2012Hieu et al, , 2013Kohn et al, 2010;Zhang et al, 2011;Otofuji et al, 2012;Qi et al, 2012Qi et al, , 2014Jiang et al, 2013;Lai et al, 2014;Santosh et al, 2014).…”

Section: Introductionmentioning

confidence: 95%

Age and tectonic implications of Paleoproterozoic Deo Khe Granitoids within the Phan Si Pan Zone, Vietnam

Anh

Hiếu

et al. 2015

Journal of Asian Earth Sciences

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“…The 40 Ar/ 39 Ar ages of biotite, muscovite, and amphibole recorded late cooling ages, which range from 34.3 to 14.3 Ma (Liu, Chen, Wu, et al, , and references therein). In addition, at least three stages of magmatic activity (Neoproterozoic, Permian–Triassic, and Cenozoic) have been recognized in this high‐grade unit (Cai et al, , ; Deng, Wang, Li, & Santosh, ; Li et al, ; Lin et al, ; Liu, Chen, Wu, et al, ; Liu, Wang, Cawood, et al, ; Qi et al, , ; Qi, Zeng, Zhu, Hu, & Hou, ; Wang, Liu, & Liu, ; Zhang & Schärer, ).…”

Section: Geological Settingmentioning

confidence: 99%

Mineral phase equilibria and zircon geochronology constrain multiple metamorphic events of high‐pressure pelitic granulites in south‐easternTibetan Plateau

et al. 2019

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The Ailao Shan (ALS) metamorphic belt separates the Indochina Block to the west from the South China Block and is an important region for understanding the history of evolution of the Palaeo‐Tethys in relation to the collision of the Indian and Eurasian plates and the formation of the Tibetan Plateau. The multiple metamorphic events and P–T–t paths of the ALS belt remain debated. Here, we present the results of an integrated study of the petrography, mineral chemistry, phase equilibria modelling, and zircon U–Pb geochronology of high‐grade metasedimentary rocks from this belt. Abundant metamorphic zircon grains with mineral inclusions of Sil/Ky + Bt + Pl + Qz ± Mnz record two metamorphic events, the first one during the Triassic (227–220 Ma), although intense shearing overlapped during the Cenozoic and mineral assemblages of this thermal event were not preserved. The second metamorphic event occurred during the Palaeogene (49 –23 Ma) and involved three stages: (a) a peak high‐pressure (HP) granulite‐facies metamorphism (M1) with a mineral assemblage of Ky + Grt1 + Bt1 + Pl + Qz ± Kfs; (b) a postpeak near‐isothermal decompression (M2) characterized by Sil1–2 + Grt2 + Bt1 + Pl + Qz + Kfs + Ilm and the decompression reactions of Grt + Ky + Qz = 3An and Ky = Sil; and (c) a late decompressional cooling (M3) with a mineral assemblage of Sil3 + Grt3 + Bt2 + Pl + Qz + Mnz ± Kfs, followed by a series of hydration reactions. The metamorphic evolution occurred along a clockwise P–T–t path with peak P–T conditions of 13.5–14.0 kbar and 810–820°C. Our new data, combined with those from previous studies, reveal that the Diancang Shan–Ailao Shan Complex Belt is not a single suture that represents the closure of the Palaeo‐Tethyan Ocean during the Triassic, but that it also represents a typical continent–continent collisional orogenic belt that formed during the Eocene–Oligocene prior to the strong left‐lateral, ductile deformation along the Ailao Shan–Red River shear zone.

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Mid-Neoproterozoic arc magmatism in the northeastern margin of the Indochina block, SW China: Geochronological and petrogenetic constraints and implications for Gondwana assembly

Cited by 58 publications

References 96 publications

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

Where was the Ailaoshan Ocean and when did it open: A perspective based on detrital zircon U–Pb age and Hf isotope evidence

Age and tectonic implications of Paleoproterozoic Deo Khe Granitoids within the Phan Si Pan Zone, Vietnam

Mineral phase equilibria and zircon geochronology constrain multiple metamorphic events of high‐pressure pelitic granulites in south‐easternTibetan Plateau

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