The thermal evolution of Chinese central Tianshan and its implications: Insights from multi-method chronometry

Jiyuan Yin, Wen Chen, Kip Hodges, Wenjiao Xiao, Keda Cai, Chao Yuan, Min Sun, Li Ping Liu, Matthijs Van Soest

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The Chinese Tianshan is located in the south of the Central Asian Orogenic Belt and formed during final consumption of the Paleo-Asian Ocean in the late Palaeozoic. In order to further elucidate the tectonic evolution of the Chinese Tianshan, we have established the temperature-time history of granitic rocks from the Chinese Tianshan through a multi-chronological approach that includes U/Pb (zircon), 40Ar/39Ar (biotite and K-feldspar), and (U-Th)/He (zircon and apatite) dating. Our data show that the central Tianshan experienced accelerated cooling during the late Carboniferous- to early Permian. Multiple sequences of complex multiple accretionary, subduction and collisional events could have induced the cooling in the Tianshan Orogenic Belt. The new 40Ar/39Ar and (U-Th)/He data, in combination with thermal history modeling results, reveal that several tectonic reactivation and exhumation episodes affected the Chinese central Tianshan during middle Triassic (245–210 Ma), early Cretaceous (140–100 Ma), late Oligocene-early Miocene (35–20 Ma) and late Miocene (12–9 Ma). The middle Triassic cooling dates was only found in the central Tianshan. Strong uplift and deformation in the Chinese Tianshan has been limited and localized. It have been concentrated in around major fault zone and the foreland thrust belt since the early Cretaceous. The middle Triassic and early Cretaceous exhumation is interpreted as distal effects of the Cimmerian collisions (i.e. the Qiangtang and Kunlun-Qaidam collision and Lhasa-Qiangtang collision) at the southern Eurasian margin. The Cenozoic reactivation and exhumation is interpreted as a far field response to the India-Eurasia collision and represents the beginning of modern mountain building and denudation in the Chinese Tianshan.

Original languageEnglish (US)
Pages (from-to)536-548
Number of pages13
JournalTectonophysics
Volume722
DOIs
StatePublished - Jan 2 2018

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thermal evolution
collision
exhumation
collisions
Triassic
Cretaceous
cooling
orogenic belt
reactivation
tectonics
zircon
Miocene
histories
Cimmerian
biotite
apatites
denudation
history
dating
India

Keywords

  • (U-Th)/He
  • Central Asian Orogenic Belt
  • Chinese Tianshan
  • Exhumation
  • Thermochronology

ASJC Scopus subject areas

  • Geophysics
  • Earth-Surface Processes

Cite this

The thermal evolution of Chinese central Tianshan and its implications : Insights from multi-method chronometry. / Yin, Jiyuan; Chen, Wen; Hodges, Kip; Xiao, Wenjiao; Cai, Keda; Yuan, Chao; Sun, Min; Liu, Li Ping; Van Soest, Matthijs.

In: Tectonophysics, Vol. 722, 02.01.2018, p. 536-548.

Research output: Contribution to journalArticle

Yin, Jiyuan ; Chen, Wen ; Hodges, Kip ; Xiao, Wenjiao ; Cai, Keda ; Yuan, Chao ; Sun, Min ; Liu, Li Ping ; Van Soest, Matthijs. / The thermal evolution of Chinese central Tianshan and its implications : Insights from multi-method chronometry. In: Tectonophysics. 2018 ; Vol. 722. pp. 536-548.
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AU - Liu, Li Ping

AU - Van Soest, Matthijs

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