New evidence of the Indosinian intracontinental deformation from the Triassic growth strata in the Kuqa Depression, Southern Tianshan, China

Xiang, Qin; Chen, Xuanhua; Shao, Zhaogang; Zhang, Yiping; Wang, Yongchao

doi:10.31035/cg2021012

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, we conclude that the Altyn Tagh main fault underwent rightrotational-extensional movement during the Jurassic. (iii) Gong et al The Indosinian movement in the Tibetan region was a significant regional orogenic event that shaped the northern structure of the Tibetan Plateau, transforming the area into an intracontinental orogenic stage (Hu et al, 2016;X. Qin et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Jurassic sedimentary migration characteristics and their geodynamic implications in the Dunhuang Basin and adjacent regions, Northwestern China

Feng,

Xu,

Xubo

et al. 2024

Geological Journal

View full text Add to dashboard Cite

The Dunhuang Basin, situated in western China along the Altyn Tagh Fault (ATF) zone, intersects the Tethys and Paleo‐Asian Ocean tectonic domains. Influenced by both the ATF system and the far‐field effects of the Qiangtang‐Lhasa‐Eurasia collision during the Mesozoic, the mechanism of the Jurassic sedimentary migration of the basin in response to tectonic movements is unclear so far. The paper uses a comprehensive approach, including field geological surveys, lithologic and lithofacies discern, stratigraphic relationships analysis and 2D seismic profile interpretation, to examine the distribution of Jurassic residual strata in the basin. The comprehensive results of our study suggest that the Dunhuang Basin exists as an isolated block with unique tectonic and sedimentary evolution characteristics. In the Early Jurassic, the Dunhuang Basin underwent initial rifting, leading to the formation of small segmented intermontane sags. This phase was marked by the coarse particle sedimentary system of alluvial fans and braided rivers, represented the near source rapid deposition in the initial formation period of the basin. Stratigraphic distribution was primarily influenced by pre‐Jurassic basement topography and was not significantly constrained by faulting during this period. The formation of these isolated discontinuous small intermontane sags indicates the segmented activities of the ATF in the Early Jurassic period. In the Middle Jurassic period, influenced by the ATF dextral strike‐slip faulting, sedimentation extended eastward and the depocenter migrated clockwise compared with the distribution of the Middle Jurassic strata within the Dunhuang Basin. This period witnessed the development of coal measure strata at the basin's margins and lacustrine fine‐grained clastic deposition in the centre. The segmented fracture of the ATF gradually initiated a unified dextral strike‐slip tectonic movement. In the Late Jurassic period, sedimentary strata were locally present in the Wanyao Sag but absent in other sags. The depocenter migrated counterclockwise compared with the distribution of Middle Jurassic strata within the Dunhuang Basin, due to regional uplift accompanied by the ATF sinistral strike‐slip faulting caused by the collision between the Lhasa Block and the Eurasia Plate. The depocenter migration of the Dunhuang Basin constrained within the ATF system from the Early to Middle and Late Jurassic can be attributed to the transition of the ATF strike‐slip faulting in context of the stress relaxation and compression between the collision of the Qiangtang and Lhasa blocks to the Eurasia Plate, respectively.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The Indosinian movement in the Tibetan region was a significant regional orogenic event that shaped the northern structure of the Tibetan Plateau, transforming the area into an intracontinental orogenic stage (Hu et al, 2016; X. Qin et al, 2021). Consequently, there was no extensional environment in the broader region during this period.…”

Section: Discussionmentioning

confidence: 99%

Jurassic sedimentary migration characteristics and their geodynamic implications in the Dunhuang Basin and adjacent regions, Northwestern China

Feng,

Xu,

Xubo

et al. 2024

Geological Journal

View full text Add to dashboard Cite

show abstract

“…5), especially in the eastern Tianshan Mountains (Laurent-Charvet et al, 2002). Timing of Triassic growth strata in the Kuqa Depression indicates far field effects of the Indosinian Mongolia-Okhotsk orogeny responded in Southern Tianshan (Qin et al, 2021). Correlation of Apparent Polar Wander Paths (APWP) of Early Carboniferous, Late Permian, and Middle Triassic, suggests that there is a 32° anticlockwise rotation of eastern Hexi Corridor-Alxa block related to the Ordos block, western part of the North China craton (with the point 44°N and 84°E as the reference Euler pole), due to the oblique collision between the Alxa and the Ordos blocks in the Middle Triassic (Dong et al, 2016).…”

Section: Indosinian Deformation In the Central Asian Orogenic Beltmentioning

confidence: 99%

Construction of the Continental Asia in Phanerozoic: A Review

Chen

Dong

Shi

et al. 2022

Acta Geologica Sinica (Eng)

View full text Add to dashboard Cite

This is a review of the formation and tectonic evolution of the continental Asia in Phanerozoic. The continental Asia has formed on the bases of some pre‐Cambrian cratons, such as the Siberia, India, Arabia, North China, Tarim, South China, and Indochina, through multi‐stage plate convergence and collisional collages in Phanerozoic. The north‐central Asia had experienced the expansion and subduction of the Paleo‐Asian Ocean (PAO) in the early Paleozoic and the closure of the PAO in the late Paleozoic and early Mesozoic, forming the PAO regime and Central Asian orogenic belt (CAOB). In the core of the CAOB, the Mongol‐Okhotsk Ocean (MOO) opened with limited expansion in the Early Permian and finally closed in the Late Jurassic–Early Cretaceous. The south‐central Asia had experienced mainly multi‐stage oceanic opening, subduction and collision evolution in the Tethys Ocean, forming the Tethys regime and Himalaya‐Tibetan orogenic belt. In eastern Asia, the plate subduction and continental margin orogeny on western margin of the Pacific Ocean, forms the West Pacific regime and West Pacific orogenic belt. The PAO, Tethys, and West Pacific regimes, together with Precambrian cratons among or surrounding them, made up the major tectonic and dynamic systems of the continental Asia in Phanerozoic. Major tectonic events, such as the Early Paleozoic Qilian, Uralian, and Dunhuang orogeneses, the late Paleozoic East Junggar, Tianshan and West Junggar orogeneses, the Middle to Late Permian Ailaoshan orogeny and North‐South Lhasa collision, the early Mesozoic Indochina‐South China and North‐South China collisions, the late Mesozoic Mongolia‐Okhotsk orogeny, Lhasa‐Qiangtang collision, and intra‐continental Yanshanian orogeny, and the Cenozoic Indo‐Asian, Arab‐Asian, and West Pacific margin collisions, constrained the formation and evolution of the continental Asia. The complex dynamic systems have left large number of deformation features, such as large‐scale strike‐slip faults, thrust‐fold systems and extensional detachments on the continental Asia. Based on past tectonics, a future supercontinent, the Ameurasia, is prospected for the development of the Asia in ca. 250 Myr.

show abstract

New evidence of the Indosinian intracontinental deformation from the Triassic growth strata in the Kuqa Depression, Southern Tianshan, China

Cited by 2 publications

References 0 publications

Jurassic sedimentary migration characteristics and their geodynamic implications in the Dunhuang Basin and adjacent regions, Northwestern China

Jurassic sedimentary migration characteristics and their geodynamic implications in the Dunhuang Basin and adjacent regions, Northwestern China

Construction of the Continental Asia in Phanerozoic: A Review

Contact Info

Product

Resources

About