Late Cretaceous K-rich rhyolitic crystal tuffs from the Chuduoqu area in Eastern Qiangtang subterrane: evidence for crustal thickening of the central Tibetan Plateau prior to India–Asia collision

2022 ◽  
Author(s):  
Yonggang Sun ◽  
Bile Li ◽  
Fengyue Sun ◽  
Qingfeng Ding ◽  
Junlin Dong ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Late Cretaceous ◽  
Crustal Thickening ◽  
Central Tibetan Plateau

Late Cretaceous–Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau

2017 ◽  
Vol 130 (3-4) ◽  
pp. 499-521 ◽  
Author(s):  
Lin Li ◽  
Carmala N. Garzione ◽  
Alex Pullen ◽  
Peng Zhang ◽  
Yun Li
Keyword(s):  
Tibetan Plateau ◽  
Late Cretaceous ◽  
Basin Evolution ◽  
Central Tibetan Plateau

scholarly journals Late Cretaceous high-Mg# granitoids in southern Tibet: Implications for the early crustal thickening and tectonic evolution of the Tibetan Plateau?

Lithos ◽  
2015 ◽  
Vol 232 ◽  
pp. 12-22 ◽  
Author(s):  
Jian-Lin Chen ◽  
Ji-Feng Xu ◽  
Hong-Xia Yu ◽  
Bao-Di Wang ◽  
Jian-Bin Wu ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Late Cretaceous ◽  
Tectonic Evolution ◽  
Crustal Thickening ◽  
The Tibetan Plateau ◽  
Southern Tibet

Crustal thickening and uplift of the Qiangtang Terrane, Tibetan Plateau during the Late Cretaceous to Early Palaeocene: geochronology and geochemistry of the Saiduopugangri granite

2020 ◽  
Author(s):  
xue li ◽  
Guo-Sheng Sun ◽  
Gen-Yi Liu ◽  
Huan Zhou ◽  
Zi-Ling Shan ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Late Cretaceous ◽  
Crustal Thickening ◽  
Magma Source ◽  
Geodynamic Setting ◽  
The Tibetan Plateau ◽  
Weighted Mean ◽  
Lower Crustal ◽  
Qiangtang Terrane ◽  
Shoshonitic Series

There continues to be debate regarding the timing of the collision between the Indian and Eurasian plates and the uplift of the Tibetan Plateau. This study presents zircon U–Pb geochronology, whole-rock geochemistry, and Lu–Hf isotopic data for the Saiduopugangri granite of the Qiangtang Terrane, located within the core of the Tibetan Plateau. These data provide the basis for the geodynamic setting, petrogenesis, and characteristics of its magma source. Zircons from the Saiduopugangri granite yield a weighted-mean 206Pb/238U age of 62.72 ± 0.06 Ma, indicating that these rocks formed during the early Palaeocene. The rocks are members of the highly calc-alkaline to shoshonitic series, with weak peraluminous characteristics. Trace elements are characterised by high Sr (483–616ppm), and low Y (6–10ppm) and Yb (1ppm) content, typical of a high Sr and low Yb granite. The εHf(t) of zircon range from −2.14 to 2.35, with two-stage Hf model ages (TDM2) ranging from 1182 to 895Ma. These data suggest that the Saiduopugangri granite magma was derived from the melting of lower-crustal clastic meta-sedimentary rocks and mantle-derived basalts. The high Sr and low Yb granite characteristics and experimental results indicate that melting occurred at >1.2 GPa and >750 °C, consistent with a crustal thickness greater than 50km. Magmatism occurred from the Late Cretaceous to the early Palaeogene and is broadly synchronous with the collision timing between the Indian and Eurasian plates. The Saiduopugangri granite provides evidence of crustal thickening of the Tibetan Plateau and its age and petrogenesis constrain the timing of the initial uplift.

Crustal Thickening of the South Qiangtang Terrane, Tibetan Plateau: Constraint from Late Cretaceous High-Sr/Y Granitic Rocks

2019 ◽  
Vol 127 (4) ◽  
pp. 457-473 ◽  
Author(s):  
Pei-Yuan Hu ◽  
Qing-Guo Zhai ◽  
Jun Wang ◽  
Yue Tang ◽  
Hai-Tao Wang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Late Cretaceous ◽  
Crustal Thickening ◽  
Granitic Rocks ◽  
The South ◽  
Qiangtang Terrane

scholarly journals How does the elevation changing response to crustal thickening process in the central Tibetan Plateau since 120 Ma?

China Geology ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 32-43
Author(s):  
Zhong-bao Zhao ◽  
◽  
Chao Li ◽  
Xu-xuan Ma
Keyword(s):  
Tibetan Plateau ◽  
Crustal Thickening ◽  
Central Tibetan Plateau
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