scholarly journals Paleozoic and Mesozoic Tectonic Evolution of Central Asia: From Continental Assembly to Intracontinental Deformation

Eos ◽  
2003 ◽  
Vol 84 (6) ◽  
pp. 57 ◽  
Author(s):  
Kevin Burke
Keyword(s):  
Central Asia ◽  
Tectonic Evolution ◽  
Intracontinental Deformation

scholarly journals Intracontinental deformation in central Asia: Distant effects of India – Eurasia convergence revealed by apatite fission-track thermochronology

2008 ◽  
Vol 2 (4) ◽  
pp. 121-122 ◽  
Author(s):  
Johan De Grave ◽  
Michael M Buslov ◽  
Peter Van Den Haute
Keyword(s):  
Central Asia ◽  
Fission Track ◽  
Apatite Fission Track ◽  
Special Issue ◽  
Fission Track Thermochronology ◽  
Intracontinental Deformation

Himalayan Journal of Sciences Vol.2(4) Special Issue 2004 pp. 121-2

scholarly journals Middle–Late Triassic sedimentary provenance of the southern Junggar Basin and its link with the post-orogenic tectonic evolution of Central Asia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jialin Wang ◽  
Chaodong Wu ◽  
Yue Jiao ◽  
Bo Yuan
Keyword(s):  
Central Asia ◽  
Detrital Zircon ◽  
Tectonic Evolution ◽  
Sedimentary Rocks ◽  
Junggar Basin ◽  
Upper Triassic ◽  
Late Triassic ◽  
The North ◽  
Sedimentary Provenance ◽  
Source To Sink

AbstractDue to the unknown Triassic volcanism in the Junggar Basin, the Middle–Late Triassic sedimentary provenance in the southern Junggar Basin (SJB) has long been controversial. Detrital zircon grains from 13 samples of the Middle–Upper Triassic Xiaoquangou Group in the SJB were analyzed using zircon U–Pb geochronology to constrain the provenance of Triassic sedimentary rocks and to further understand their source-to-sink system. Comparison of detrital zircon U–Pb age distributions for 13 samples reveals that the Triassic age populations predominate in sediments of the northern Bogda Mountains, with subordinate in the southern Bogda Mountains, and no or minimal in the North Tianshan (NTS). Coupled with sandstone petrological, sedimentary geochemical and paleocurrent data, the Triassic detrital zircon grains of the Xiaoquangou Group in the SJB were probably input from the Bogda Mountains. As Pennsylvanian and Mississippian zircon grains are mainly derived from the NTS and Central Tianshan (CTS), the provenance of the Xiaoquangou Group includes the NTS, CTS and Bogda Mountains. But the different samples in different sink areas have different provenances, originating from at least four source-to-sink systems. The supply of sediments from the Bogda Mountains started in the Late Triassic, suggesting initial uplift of the Bogda Mountains.

Inherited structure as a control on late Paleozoic and Mesozoic exhumation of the Tarbagatai Mountains, southeastern Kazakhstan

2021 ◽  
pp. jgs2020-121
Author(s):  
Jack Gillespie ◽  
Stijn Glorie ◽  
Gilby Jepson ◽  
Fedor Zhimulev ◽  
Dmitriy Gurevich ◽  
...  
Keyword(s):  
Central Asia ◽  
Tectonic Activity ◽  
Late Paleozoic ◽  
Content Type ◽  
Existing Structures ◽  
Tectonic History ◽  
History Of ◽  
Supplementary Material ◽  
Intracontinental Deformation ◽  
Insight Into

Central Asia hosts the Tianshan, the largest intracontinental mountain belt in the world, which experienced major reactivation and uplift since the Oligocene in response to the collision of India with Asia. This reactivation was focused around pre-existing structures inherited from the Paleozoic tectonic history of the region. The significant Cenozoic tectonic reworking of Central Asia complicates efforts to understand earlier phases of intracontinental tectonics during the late Paleozoic and Mesozoic. The Tarbagatai Mountains of eastern Kazakhstan record a thermotectonic history that provides insight into the timing and distribution of intracontinental tectonic activity in Central Asia prior to the India-Eurasia collision. Apatite fission track and (U-Th-Sm)/He analysis of igneous samples from the Tarbagatai Mountains reveals two episodes of cooling as a result of exhumation following Paleozoic amalgamation. Initial intracontinental deformation during the Late Permian drove exhumation synchronous with activity along newly formed strike-slip faults spanning the Central Asian Orogenic Belt. The major Chingiz-Tarbagatai Fault was reactivated during the Early Cretaceous, driving localised exhumation along the fault. The relative lack of Cenozoic tectonic activity in the Tarbagatai Mountains means they provide unique insight into the broader thermotectonic evolution of Central Asia during the late Paleozoic and Mesozoic.Supplementary material: Detailed thermochronological data, including plots and tables can be found in the supplementary data https://doi.org/10.6084/m9.figshare.c.5414555.

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