Evolution of fold-thrust belts and Cenozoic uplifting of the South Tianshan Mountain range in the Kuqa region, Northwest China

Liu, Wen; Li, Yuejun; Zhang, Guangya; Tian, Zuo-ji; Peng, Gang; Qiu, Bin; Zhi-bin, Huang; Luo, Jing; Zhang, Qiang

doi:10.1016/j.jseaes.2017.01.002

Cited by 19 publications

(7 citation statements)

References 33 publications

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“…The Paleogene salt layer acts as a detachment layer and decouples the deformation in the upper and lower layers (Chen et al., 2004). The shallow detachment anticline in Qiulitag structural zone formed under the southward propagation on the detachment (Li et al., 2012; Wen et al., 2017) (Figures 16f and 16g).…”

Section: Discussionmentioning

confidence: 99%

Response of Surface Erosion to Crustal Shortening and its Influence on Tectonic Evolution in Fold‐and‐Thrust Belts: Implications From Sandbox Modeling on Tectonic Geomorphology

Mao

Yan

et al. 2021

Tectonics

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Section: Discussionmentioning

confidence: 99%

Response of Surface Erosion to Crustal Shortening and its Influence on Tectonic Evolution in Fold‐and‐Thrust Belts: Implications From Sandbox Modeling on Tectonic Geomorphology

Mao

Yan

et al. 2021

Tectonics

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“…85°), as shown in Figure 10B. This phenomenon is very common among Piedmont tectonic belts, such as the Longmen Shan fold-thrust belt in Central China (Jia et al, 2006;Hubbard and Shaw, 2009) and the South Tianshan Mountain range in the Kuqa region of Northwest China (Wen et al, 2017). Meanwhile, the fault geometry changed from a "line" (e.g., F6-F9 in Figure 9A) to "S" (e.g., F1-F4 in Figure 9A).…”

Section: Fault Interpretationmentioning

confidence: 92%

Calibration of the Discrete Element Method and Modeling of Shortening Experiments

Yin

et al. 2021

Front. Earth Sci.

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The discrete element method (DEM) is becoming widely accepted as an effective method for addressing tectonic problems in granular materials. It is capable of reproducing structures observed in the analog model (AM). However, the previous experiments also pointed to variability among DEM models and AMs in the number of fault zones, their dip angle and spacing, and the evolution of the surface slope of a thrust wedge. The accuracy of the DEM depends on the input parameter values, so the calibration of the discrete element method is very important. Microscopic properties of particles and macroscopic properties of loose quartz sand were calibrated through a series of repose angle and biaxial tests. Furthermore, an AM was constructed to simulate the evolution of the thrust wedge to compare with DEM results. DEM and AM results indicate an encouraging overall agreement in model evolution. Based on a new automated wedge quantification method, DEM results were systematically compared with AM results on the number of fault zones, their dip angle and spacing, the evolution of the surface slope of a thrust wedge, and other parameters. Our study provides a necessary comparison between commonly applied modeling approaches, which is important for more confidently applying these methods to understand real fold and thrust belt systems.

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“…Based on the thin-skinned thrust-fold structural model, some researchers have proposed that a detachment fault is located in the Kumgremu Group (E 1-2 KM) salt rocks within the Baicheng sag; it is connected to the detachment fault at the bottom of the Mesozoic strata in the Kelasu structural belt, further north extending to the interior of the orogenic belt at a low angle to form a regional detachment fault (Wang et al, 2002;Guan et al, 2003;Yang et al, 2006;Tian et al, 2016a;Zheng et al, 2020). Most of the contraction is concentrated in the thrust-fold belts of the Cenozoic-Mesozoic tectonic levels in the Qiulitage and Kelasu structural belts (Scharer et al, 2004;Wen et al, 2017), the measured amount of contraction being more than 30 km (Shi et al, 1999;Wang et al, 2002). In the model shown in Figure 8, it is considered that contractional strain varies significantly in different structural belts and at different tectonic levels.…”

Section: The Balanced Cross-section Of Structural Deformation In the ...mentioning

confidence: 99%

A Structural Interpretation Model and Restoration of the Mesozoic Proto‐basin for the Kuqa Depression, Tarim Basin

et al. 2023

Acta Geologica Sinica (Eng)

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A thrust‐fold belt consisting of a series of thrusts and buckling folds developed in the Mesozoic and Cenozoic strata within the Kuqa Depression, Tarim Basin. In this study, a structural interpretation model of the Kuqa Depression is established and the Mesozoic proto‐basin is reconstructed on the basis of outcrop geology along the basin margin, seismic, well‐log and CEMP data. The model is called ‘delaminate contractional deformation’, which emphasizes the decoupling between the Cenozoic, Mesozoic, pre‐Mesozoic and the basin‐basement within the Kuqa Depression, but there is no unified detachment. The model has a shortening amount ranging from 12 km to 16 km and the depth involved in contractional deformation ranges from 21 km to 28 km. A prototype of the Mesozoic basin reconstructed by interpretation model is a sub‐basin superposed on the transitional zone between the uplift at the northern edge of the Tarim Craton and the southern Tianshan orogenic wedge formed in the Hercynian orogeny. Lithospheric thermal and crustal isostatic activity after the Hercynian orogeny maybe the controlling dynamic factors of basin subsidence during the Mesozoic and early Cenozoic, the difference in rock mechanical properties between different levels, craton and orogenic wedge being the major cause of the ‘delaminate contractional deformation’ during the Himalayan orogeny.

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Evolution of fold-thrust belts and Cenozoic uplifting of the South Tianshan Mountain range in the Kuqa region, Northwest China

Cited by 19 publications

References 33 publications

Response of Surface Erosion to Crustal Shortening and its Influence on Tectonic Evolution in Fold‐and‐Thrust Belts: Implications From Sandbox Modeling on Tectonic Geomorphology

Response of Surface Erosion to Crustal Shortening and its Influence on Tectonic Evolution in Fold‐and‐Thrust Belts: Implications From Sandbox Modeling on Tectonic Geomorphology

Calibration of the Discrete Element Method and Modeling of Shortening Experiments

A Structural Interpretation Model and Restoration of the Mesozoic Proto‐basin for the Kuqa Depression, Tarim Basin

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