Multiscale lithospheric buckling dominates the Cenozoic subsidence and deformation of the Qaidam Basin: A new model for the growth of the northern Tibetan Plateau

Hu, Xiaoyi; Wu, Lei; Zhang, Yongshu; Zhang, Junyong; Wang, Chuanwu; Tang, Jianchao; Xiao, Anguo; Chen, Hanlin; Yang, Shufeng

doi:10.1016/j.earscirev.2022.104201

Cited by 8 publications

(13 citation statements)

References 157 publications

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“…This indicates that the structural complexity of the western study area is higher than that of the eastern area mainly due to the different influences of regional geological context. Specially, both orogenic belts, including Altun strike-slip fault and Qilian Mountain, affect the western area, whereas only Qilian Mountain affects the eastern area, resulting in more complex coal reservoirs and strata structural complexity. − The average D 2 of Saishiteng and Yuqia coalfields in the west is 2.88, and the mean D 2 of Quanji and Delingha coalfields in the east is 2.68. Compared with D 1 and D 2 data, it can be found that the fractal dimension D 1 has a little change and a high correlation coefficient, whereas the fractal dimension D 2 is significantly different, and the D 2 of type III with a weak hysteresis loop is significantly lower than that of type I and type II with an obvious hysteresis ring (Tables and ).…”

Section: Discussionmentioning

confidence: 99%

Investigation on Adsorption Pore and Fractal Analyses of Low-Rank Coals in the Northern Qaidam Basin

Zhou,

He,

Hou

2024

ACS Omega

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The northern Qaidam Basin has abundant coal and coalbed methane (CBM) resources, and quantitative evaluation of adsorption pore characteristics has great significance for optimum selection of CBM-favorable areas. Based on vitrinite reflectance, coal maceral, proximate analysis, low-temperature N 2 adsorption, and methane isothermal adsorption experiments, the heterogeneities of adsorption pores (pore diameter <100 nm) were quantitatively characterized, and relationships between fractal dimensions and physical parameters of low-ranked coal reservoirs were revealed. The results show that the micropore volume percentage ranges between 33.70 and 86.44% with an average of 64.94%. Based on N 2 adsorption/desorption curves and pore diameter distribution characteristics, the adsorption pore structures of low-ranked coals were divided into 3 types. According to the FHH model, fractal dimension D 1 (relative pressure between 0 and 0.5) and D 2 (relative pressure between 0.5 and 1) were calculated. Fractal dimension D 1 , representing adsorption pore surface area, ranges from 2.001 to 2.345, with lower values. Fractal dimension D 2 (adsorption pore structure) is from 2.641 to 2.917, with relatively high values, which has a decreasing tendency from west to east in the study area. There are positive relationships between fractal dimension D 1 and Langmuir volume and specific surface area, whereas negative correlations are found between fractal dimension D 2 and Langmuir pressure, ash yield, moisture content, volatile content, and average pore diameter. Combined with the related data for middle-and high-rank coals, the characteristics of pore surface and methane adsorption capacity can be analyzed based on the variation of vitrinite reflectance. Furthermore, the complexity of pore structure can also be predicted according to the averaged pore size and micropore content to some degree.

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Section: Discussionmentioning

confidence: 99%

Investigation on Adsorption Pore and Fractal Analyses of Low-Rank Coals in the Northern Qaidam Basin

Zhou,

He,

Hou

2024

ACS Omega

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“…One group of opinions highlight the effect of orogenic loads (Cao et al, 1994;Li C et al, 2020;Li C Y et al, 2021), similar to the classic attribution for foreland basin subsidence (e.g., Jordan, 1981;Allen and Homewood, 1986). In contrast, another group of studies emphasize the influence of surface processes on basin subsidence, including the drainage system (endorheic or exorheic) and consequent deposition that imposes sedimentary loads (e.g., Yang and Liu, 2002;Yu et al, 2015Guo, 2019, 2021;Wang L et al, 2021;Hu et al, 2022). Solving this problem, at least in part, requires quantitative Surface Processes Driving Intracontinental Basin Subsidence in the Context of India-Eurasia Collision: Evidence from Flexural Subsidence Modeling of the Cenozoic Southern Tarim Basin along the West Kunlun Foreland, NW Tibetan Plateau HUANG Hao 1, 2 , LIN Xiubin 1, 2, * , AN Kaixuan 1, 2 , ZHANG Yuqing 3 , CHEN Hanlin 1, 2 , CHENG Xiaogan 1, 2 and LI Chunyang 4 determination of the specific contribution of orogenic and sedimentary loads on basin subsidence.…”

Section: Introductionmentioning

confidence: 92%

“…As these basins developed in intracontinental settings and are superimposed upon fossil foreland regions (e.g., Yin and Harrison, 2000), Lu et al (1994) categorized them as rejuvenated foreland basins. Some of these basins subsided by more than 10 km and deposited thick sediments during the Cenozoic (Jia et al, 2013), thus bear important information for understanding the intracontinental responses to that remote continental collision (e.g., Wang L et al, 2021;Hu et al, 2022) and the interaction between tectonics and surface processes (e.g., Sinclair and Naylor, 2012;Yu et al, 2015Guo, 2019, 2021).…”

Section: Introductionmentioning

confidence: 99%

Surface Processes Driving Intracontinental Basin Subsidence in the Context of India–Eurasia Collision: Evidence from Flexural Subsidence Modeling of the Cenozoic Southern Tarim Basin along the West Kunlun Foreland, NW Tibetan Plateau

Huang

Lin

et al. 2023

Acta Geologica Sinica (Eng)

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The India‐Eurasia collision has produced a number of Cenozoic deep intracontinental basins, which bear important information to reveal the far‐field response of the remote collision. Despite significant, their subsiding mechanism remains debatable, with end‐member models attributing to either orogenic or sedimentary load. In this study, we conduct flexural subsidence modeling with a two‐dimensional finite elastic plate model on the Hotan‐Mazatagh section along the southern Tarim Basin which defines a key region in the foreland of the West Kunlun Orogen along the NW margin of the Tibetan Plateau. The modeling results indicate that the orogenic load of West Kunlun triggers the southern Tarim Basin to subside by up to less than ~6 km, with its impact weakening toward the basin interiors until ~230 km north away the Karakax fault. The sedimentary load, consisting of the Cenozoic strata, forces the basin to subside by ~2 to ~7 km. In combination with retreat of the proto‐Paratethys Sea and paleogeographic reorganization of the Tarim Basin, we propose that surface processes, in particular shift from an exorheic to an endorheic drainage system, and consequently the thick sedimentary load, play a decisive role in forming the deep intracontinental basins in the context of the Inida‐Eurasia collision.

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“…(Lu et al, 2021;. F. Cheng et al (2021), Hu et al (2022), andJian et al (2022) reviewed these two age models, comparing the stratigraphic architecture of the entire basin, and they suggested that the Cenozoic successions in the Qaidam basin are diachronous due to the upper-crustal buckling folds, formation of the growth strata and the migration of the depocenter through time. The diachronous character is also convinced by the above studies of new age model, which suggest that the boundary ages of formations (typical for Lulehe Fm.)…”

Section: Stratigraphy Of the Qaidam Basinmentioning

confidence: 99%

Multiple Exhumation Stages During the Cenozoic Evolution of the Northeast Tibetan Plateau

Wang,

Zattin,

Yang

et al. 2024

Tectonics

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The Cenozoic growth history of the northeast (NE) Tibetan Plateau has been strongly debated in the past few years with three deformation models being proposed: progressive northeastward propagation, out‐of‐sequence deformation, and episodic deformation. Reconstruction of the long‐term deformation and exhumation history of the different blocks can help elucidate the growth pattern and tectonic processes involved in the formation of the Plateau. Both the Qaidam and Jiuquan basins—the two largest basins of the NE Tibetan Plateau—contain continuous and well‐exposed successions of synorogenic sediments that span the entire Cenozoic. We used apatite fission‐track thermochronology, sedimentary facies, and structural and provenance analyses of these successions to determine the exhumation history of the Tibetan Plateau. Five distinct fast exhumation events were recognized and dated: 65–54, 43–39, 34–29, 24–21, and 16–15 Ma. Comparison with existing morphotectonic information enabled us to reconstruct a multiple‐stage growth scenario for the NE Tibetan Plateau in the context of the surface uplift phases across the Himalayan‐Tibetan orogen during the Cenozoic. Overall, our findings support the episodic deformation model and emphasizes that the current relief of the NE Tibetan Plateau is largely derived from these five of stage of exhumation.

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Multiscale lithospheric buckling dominates the Cenozoic subsidence and deformation of the Qaidam Basin: A new model for the growth of the northern Tibetan Plateau

Cited by 8 publications

References 157 publications

Investigation on Adsorption Pore and Fractal Analyses of Low-Rank Coals in the Northern Qaidam Basin

Investigation on Adsorption Pore and Fractal Analyses of Low-Rank Coals in the Northern Qaidam Basin

Surface Processes Driving Intracontinental Basin Subsidence in the Context of India–Eurasia Collision: Evidence from Flexural Subsidence Modeling of the Cenozoic Southern Tarim Basin along the West Kunlun Foreland, NW Tibetan Plateau

Multiple Exhumation Stages During the Cenozoic Evolution of the Northeast Tibetan Plateau

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