scholarly journals Initial rupture and displacement on the Altyn Tagh fault, northern Tibetan Plateau: Constraints based on residual Mesozoic to Cenozoic strata in the western Qaidam Basin

Geosphere ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 921-942 ◽  
Author(s):  
Feng Cheng ◽  
Zhaojie Guo ◽  
Hillary S. Jenkins ◽  
Suotang Fu ◽  
Xiang Cheng
Keyword(s):  
Tibetan Plateau ◽  
Qaidam Basin ◽  
Altyn Tagh Fault ◽  
Northern Tibetan Plateau ◽  
Initial Rupture ◽  
Altyn Tagh ◽  
Western Qaidam Basin

Along-strike topographic variations of the Altyn Tagh fault in the northern Tibetan Plateau

2022 ◽  
pp. 105082
Author(s):  
Feipeng Huang ◽  
Mingjian Liang ◽  
Huiping Zhang ◽  
Jianguo Xiong ◽  
Yizhou Wang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Altyn Tagh Fault ◽  
Northern Tibetan Plateau ◽  
Altyn Tagh

scholarly journals Active Strike-Slip Faulting and Systematic Deflection of Drainage Systems along the Altyn Tagh Fault, Northern Tibetan Plateau

2021 ◽  
Vol 13 (16) ◽  
pp. 3109
Author(s):  
Peng Chen ◽  
Bing Yan ◽  
Yuan Liu
Keyword(s):  
Tibetan Plateau ◽  
Large Scale ◽  
Regional Scale ◽  
Strike Slip ◽  
The Tibetan Plateau ◽  
Stream Channels ◽  
Altyn Tagh Fault ◽  
Drainage Systems ◽  
Northern Tibetan Plateau ◽  
Altyn Tagh

Systematic deflection of drainage systems along strike-slip faults is the combination of repeated faulting slipping and continuous headward erosion accumulated on the stream channels. The measurement and analysis of systematically deflected stream channels will enhance our understanding on the deformational behaviors of strike-slip faults and the relationship between topographic response and active strike-slip faulting. In this study, detailed interpretation and analysis of remote sensing images and DEM data were carried out along the Altyn Tagh Fault, one typical large-scale strike-slip fault in the northern Tibetan Plateau, and together with the statistical results of offset amounts of 153 stream channels, revealed that (i) the drainage systems have been systematically deflected and/or offset in sinistral along the active Altyn Tagh Fault; (ii) The offset amounts recorded by stream channels vary in the range of 7 m to 72 km, and indicate a positively related linear relationship between the upstream length L and the offset amount D, the channel with bedrock upstream generally has a better correlation between L and D than that of non-bedrock upstream; (iii) River capture and abandonment are commonly developed along the Altyn Tagh Fault, which probably disturbed the continuous accumulation of offset recorded on individual stream channel, suggesting that the real maximum cumulative displacement recorded by stream channels might be larger than 72 km (lower bound) along the Altyn Tagh Fault. Along with the cumulative displacements recorded by other regional-scale strike-slip faults in the Tibetan Plateau, these results demonstrate that the magnitude of tectonic extrusion along these first-order strike-slip faults after the collision of India–Asia plates might be limited.

scholarly journals Concentration of crustal displacement along a weak Altyn Tagh fault: Evidence from paleomagnetism of the northern Tibetan Plateau

Tectonics ◽  
2004 ◽  
Vol 23 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
Guillaume Dupont-Nivet ◽  
Delores Robinson ◽  
Robert F. Butler ◽  
An Yin ◽  
H. Jay Melosh
Keyword(s):  
Tibetan Plateau ◽  
Altyn Tagh Fault ◽  
Northern Tibetan Plateau ◽  
Altyn Tagh

scholarly journals Three-dimensional structural model of the Qaidam basin: Implications for crustal shortening and growth of the northeast Tibet

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Jianming Guo ◽  
Xuebing Wei ◽  
Guohui Long ◽  
Bo Wang ◽  
Hailong Fan ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Qaidam Basin ◽  
Strike Slip ◽  
Crustal Thickening ◽  
Tibet Plateau ◽  
The Tibetan Plateau ◽  
Altyn Tagh Fault ◽  
Altyn Tagh ◽  
History Of ◽  
The Tibet Plateau

AbstractThe Qaidam basin, bounded by the Altyn Tagh fault in the north, is located in the northeast of the Tibet plateau, and it has important implications for understanding the history and mechanism of Tibetan plateau formation during the Cenozoic Indo-Eurasia collision. In this study, we constructed the main geological structures and surfaces in three dimensions through the interpolation of regularly spaced 2D seismic sections, constrained by wells data and surface geology of the Qaidam basin in northeast Tibet. Meanwhile the Cenozoic tectonic history of the Qaidam basin was reconstructed and the uplift mechanism of the Tibetan plateau was discussed. This study presents the subsurface data in conjunction with observations and analysis of the stratigraphic and sedimentary evolution. The Cenozoic deformation history of the Qaidam basin shows geologic synchroneity with uplifting history of the Tibet Plateau. It is therefore proposed that the deformation and uplifting in the south and north edges of the Tibet Plateau was almost synchronous. The total shortening and shortening rate during Cenozoic reached 25.5 km and 11.2% respectively across the Qaidam basin, indicating that the loss of the left-lateral strike slip rates of the Altyn Tagh fault has been structurally transformed into local crustal thickening across NW-trending folds and thrust faults. Meanwhile there is an about 11° vertical component along the strike-slip Altyn Tagh fault, the block oblique slip shows one more growth mechanism of the northeast Tibet.

Sign in / Sign up

Export Citation Format

Share Document