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

Jiang, Yao-Hui; Jia, Ru-Ya; Liu, Zheng; Liao, Shiyong; Zhao, Peng; Zhou, Qing

doi:10.1016/j.lithos.2012.10.004

Cited by 173 publications

(93 citation statements)

References 62 publications

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“…With the development of the Sinian rifting, ocean spreading might have taken place during the later Sinian to Early Paleozoic, which resulted in the formation of the Proto-Tethys Ocean whose remnants are found at the Oytag-Kudi suture (Pan, 1996;Mattern and Schneider, 2000). South-dipping subduction of the Proto-Tethyan oceanic crust during the Early Paleozoic (Late Cambrian to earliest Ordovician) may have generated an early Paleozoic granitoid belt that is preserved in the South Kunlun terrane close to the Oytag-Kudi suture (Xiao et al, , 2005Jiang et al, 2002Jiang et al, , 2013. This subduction may have led to accretion of the arc onto the North Kunlun terrane, creating an active continental margin with north-dipping subduction underneath .…”

Section: Regional Geologymentioning

confidence: 99%

“…This subduction may have led to accretion of the arc onto the North Kunlun terrane, creating an active continental margin with north-dipping subduction underneath . It has been suggested that the collision between the North Kunlun and South Kunlun terranes might have occurred in the Silurian (Pan, 1996;Mattern and Schneider, 2000;Jiang et al, 2013), resulting in the closure of the Proto-Tethyan ocean (Mattern et al, 1996;Pan, 1996).…”

Section: Regional Geologymentioning

confidence: 99%

“…Phanerozoic strata, except the Silurian to Middle Devonian ones, are widespread in the North Kunlun and South Kunlun terranes. Granitoids are mainly of Late Paleozoic to Late Triassic ages (Jiang et al, 2002(Jiang et al, , 2013.…”

Section: Regional Geologymentioning

confidence: 99%

“…2). Ages of these granitoids range from Neoproterozoic to Mesozoic (855-187 Ma) (Pan, 1996;Zhang and Xie, 1989;Jiang et al, 2002Jiang et al, , 2013Bian et al, 2013;Chen et al, 2013;Huang, 2014;Liu et al, 2015). Regional metamorphism is widespread, and dynamic metamorphism mainly occurred along fault zones.…”

Section: Regional Geologymentioning

confidence: 99%

“…1a), represents a key tectonic junction between the Pan-Asia and the Tethyan tectonic domains. Its tectonic evolution was closely related to the subduction of the Proto-and Paleo-Tethys and the collision of the Early Paleozoic to Early Mesozoic terranes (Mattern and Schneider, 2000;Xiao et al, 2002Xiao et al, , 2003Jiang et al, 2013), and Cenozoic deformation by the far-field effects of the India-Asia collision (Matte et al, …”

Section: Introductionmentioning

confidence: 99%

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Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

Wang

Huang

et al. 2016

Journal of Asian Earth Sciences

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Section: Regional Geologymentioning

confidence: 99%

Section: Regional Geologymentioning

confidence: 99%

Section: Regional Geologymentioning

confidence: 99%

Section: Regional Geologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

Wang

Huang

et al. 2016

Journal of Asian Earth Sciences

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Was Late Triassic Tanggula granitoid (central Tibet, western China) a product of melting of underthrust Songpan‐Ganzi flysch sediments?

Zhang

Yan

et al. 2017

Tectonics

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Geochronological (laser ablation‐inductively coupled plasma–mass spectrometry, LA‐ICP‐MS), mineral chemistry, major and trace element, and Sr‐Nd‐Hf isotopic data are presented for the Tanggula granitoid, the largest granitic pluton in the northern Tibetan Plateau. The Tanggula pluton yields a Late Triassic emplacement age (228–223 Ma) and is magnesian (Mg# = 29.10–49.81), high‐K calc‐alkaline (K2O/Na2O = 0.76–3.51, mostly >1), and strongly peraluminous (molar Al2O3/(CaO + Na2O + K2O), A/CNK = 1.06–1.42, mostly >1.1). High initial 87Sr/86Sr ratios (0.716849 to 0.730577) and low ƐNd(t) (−10.95 to −9.60) and ƐHf(t) values (−16 to −5.1), along with an abundance of aluminosilicate minerals (e.g., biotite), enrichments in light rare earth and large ion lithophile elements, negative Eu anomalies, and depletion in high field strength elements suggest that the Tanggula granitoid is an S‐type granite derived mainly from the anatexis of metasedimentary source rocks. Geochemical fingerprinting using Sr‐Nd‐Hf isotopes and detrital zircon U‐Pb age spectra shows that Triassic flysch sediments from the Songpan‐Ganzi Paleo‐Tethyan Ocean to the north of the pluton are the most likely source of the Tanggula granitic magmas. The Tanggula granitoid could thus have been formed by the partial melting of the flysch sediments from the Songpan‐Ganzi complex as they were underthrust beneath the Qiangtang terrane along the Jinsha subduction zone during the Late Triassic.

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Ages and geochemistry of the Renacuo granitoids in the Gaize area, central Tibet: implications for the northward subduction of the Bangong Suture Ocean

Luo³

et al. 2015

Geol. J.

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Subduction of Bangong Suture Ocean and collision between the Lhasa and Qiangtang blocks were keys to better understand the development of central Tibet. However, the initiation and closure timing, and nature and structure of the Bangong suture are still poorly constrained. Mesozoic intrusions are widely distributed in central Tibet. Petrology, geochronology and geochemistry of the Renacuo pluton and their microgranular enclaves in the Gaize area to the north of the Bangong–Nujiang suture zone, south of the Longmu Co–Shuanghu suture zone, are used to constrain the tectonic history of the Bangong suture. Results of our SHRIMP U–Pb dating of the zircons are as follows: quartz diorite is 139 ± 4 Ma, MSWD = 1.6; the microgranular enclave is 147.3 ± 3.3 Ma, MSWD = 0.45. The evolutionary trend of the major elements, trace elements and rare earth elements of the microgranular enclaves and the host rocks are almost similar, suggesting that the enclaves and the host rocks may have had the same source. They most likely originated from magma mixing between mantle‐derived and crust‐derived melts. On the basis of our mapping and geochronologic studies, we suggest that the formation of the Renacuo pluton is consistent with previously suggested northward subduction of the Bangong Suture Ocean, which occurred in the Late Jurassic–Early Cretaceous. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

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

Cited by 173 publications

References 62 publications

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

Was Late Triassic Tanggula granitoid (central Tibet, western China) a product of melting of underthrust Songpan‐Ganzi flysch sediments?

Ages and geochemistry of the Renacuo granitoids in the Gaize area, central Tibet: implications for the northward subduction of the Bangong Suture Ocean

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