Late Oligocene mountain building of the East Kunlun Shan in northeastern Tibet: Impact on the Cenozoic climate evolution in East Asia

Li, Chaopeng; Zheng, Dewen; Yu, Jianwei; Zhou, Renjie; Wang, Yizhou; Pang, Jianzhang; Wang, Ying; Hao, Yuqi; Xu, Yi‐Gang

doi:10.1016/j.gloplacha.2023.104114

Cited by 6 publications

(4 citation statements)

References 77 publications

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“…Our new AHe data reveal the southward increase in the amount of exhumation (Figure 2a) and accelerated exhumation initiating at 27‐25 Ma (Figure 3) in the central segment of the EKLS. The eastern segment of the EKLS (Xiangride region) shares a similar exhumation pattern (Figure 2c) and has experienced synchronous (∼26 Ma) accelerated exhumation (Li et al., 2023). Vertical transects (Transect 5 in the Golmud region, Xiangride, and Xiangjia transects in the Xiangride region) show that the break in slope lies at 900–1,100 m depth below the erosion surfaces on the mountain top.…”

Section: Discussionmentioning

confidence: 86%

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Late Oligocene Orogen‐Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?

Zheng

et al. 2023

Geophysical Research Letters

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Since the India-Eurasia collision during 65-50 Ma (Ding et al., 2017;Hu et al., 2015), continuous plate convergence has caused uplift and outward expansion of the Tibetan Plateau. Several models have been proposed to explain how such a broad and high plateau formed and persisted, including the viscous thin sheet model (England & Houseman, 1986), deforming viscous lithospheric mantle model (Clark, 2012), lower crustal flow model (Clark & Royden, 2000), and removal of the lithospheric mantle model (Molnar et al., 1993). These models hold distinctively different views on the relationship between surface deformation and underlying dynamic processes, ranging from the coupled (Clark, 2012;England & Houseman, 1986) to decoupled (Clark & Royden, 2000;Molnar et al., 1993). The essential of these debates concerns whether observed surface deformation alone is sufficient to estimate dynamics state below the upper crust and changes in crustal thickness (Flesch & Bendick, 2012). Thus, the investigation on how surface deformation links to underlying geodynamic processes is crucial for understanding the growth of Tibet.One way to assess the relationships of surface deformation with underlying dynamic process is to analyze the surface deformation and exhumation pattern in conjunction with deep structures (e.g., Sobel et al., 2013;Tan et al., 2019). The East Kunlun Shan (EKLS) extends over 1,200 km in near E-W direction in northern Tibet (Figure 1a). This mountain range not only occupies the margin of the low-relief Tibet (Figure 1a and Figure S1 in Supporting Information S1), but also marks the boundary of the weak crust beneath the interior Tibet (Figure 1b;

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Section: Discussionmentioning

confidence: 86%

“…(2010) and Li et al. (2023), see Table S2 in Data Set uploaded onto the Figshare site for these data). Gray dash lines represent isochron surfaces, which are determinated by the interpolation method.…”

Section: Introductionmentioning

confidence: 99%

Late Oligocene Orogen‐Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?

Zheng

et al. 2023

Geophysical Research Letters

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“…3 ). Movement of land towards the higher latitudes, and the loss of weathering enhancement due to aridification 28 , 29 in parts of Australia, South East Asia and Africa, leads to a decrease in total land C org burial (Figure S3C ) and therefore higher CO 2 and warmer temperatures despite the increase in biomass around the tropics (Figure S4 ).…”

Section: Resultsmentioning

confidence: 99%

Geographic range of plants drives long-term climate change

Gurung,

Field,

Batterman

et al. 2024

Nat Commun

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Long computation times in vegetation and climate models hamper our ability to evaluate the potentially powerful role of plants on weathering and carbon sequestration over the Phanerozoic Eon. Simulated vegetation over deep time is often homogenous, and disregards the spatial distribution of plants and the impact of local climatic variables on plant function. Here we couple a fast vegetation model (FLORA) to a spatially-resolved long-term climate-biogeochemical model (SCION), to assess links between plant geographical range, the long-term carbon cycle and climate. Model results show lower rates of carbon fixation and up to double the previously predicted atmospheric CO2 concentration due to a limited plant geographical range over the arid Pangea supercontinent. The Mesozoic dispersion of the continents increases modelled plant geographical range from 65% to > 90%, amplifying global CO2 removal, consistent with geological data. We demonstrate that plant geographical range likely exerted a major, under-explored control on long-term climate change.

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“…Due to the propagation of fast strike-slip faulting along the Altyn Tagh fault (e.g., Jolivet et al, 2001;Li et al, 2018;Wang et al, 2006), the northern Qaidam marginal thrust belt rotated clockwise from insignificant rotation (Li et al, 2020;Sun et al, 2022). At the same time, East Kunlun and West Qinling experienced rapid denudation (Li et al, 2023;Wang et al, 2016;Yu et al, 2023). All these tectonic deformations could have led to the eastward extension of the Qilian Shan.…”

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confidence: 99%

Neogene drainage reorganization of Longzhong Basin driven by growth of the northeastern Tibetan Plateau: A Sr isotope hydrological perspective

Liu,

Yang,

Feng

et al. 2023

Basin Research

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The Tibetan Plateau uplift has significantly influenced Asian geomorphic and climate patterns. Drainage evolution across the plateau and its surroundings as the consequence of such changes in landscape and climate provides an opportunity to understand the growth of the Tibetan Plateau. However, the evolution history of major drainage areas around the Tibetan Plateau is largely unknown. Here, we reconstructed the evolution of drainage patterns of the Cenozoic Longzhong Basin in the northeastern Tibetan Plateau since the India–Asia collision using palaeo‐water solute 87Sr/86Sr ratio records from its subbasins. Higher solute 87Sr/86Sr ratios of the Lanzhou and Xining Basins and their consistent temporal variations before ca. 22 Ma as well as lower solute 87Sr/86Sr ratios in the Linxia Basin collectively indicate a relatively steady drainage pattern of the integrated Longzhong Basin. A diverse evolution of the solute 87Sr/86Sr ratio in the Lanzhou and Xining Basins after ca. 22 Ma suggests that there was a drainage reorganization, characterized by the division of one into multiple catchment centres, in response to the growth of the northeastern Tibetan Plateau. Subsequently, the identical solute 87Sr/86Sr ratios in the Lanzhou and Xining Basins were further approached at ca. 16 Ma, and the rise in the solute 87Sr/86Sr ratios of the Linxia and Tianshui Basins occurred at ca. 9–8 Ma, indicating two subsequent changes in solute composition induced by the middle Miocene uplift and late Miocene dust expansion, respectively. Our reconstructions of Cenozoic hydrological evolution in the Longzhong Basin indicate accelerated basin segmentation and drainage adjustment with solute change in response to the growth of the northeastern Tibetan Plateau during the Neogene.

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Late Oligocene mountain building of the East Kunlun Shan in northeastern Tibet: Impact on the Cenozoic climate evolution in East Asia

Cited by 6 publications

References 77 publications

Late Oligocene Orogen‐Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?

Late Oligocene Orogen‐Scale Tilting in Northern Tibet: A Response to Northward Injection of the Tibetan Lower Crust?

Geographic range of plants drives long-term climate change

Neogene drainage reorganization of Longzhong Basin driven by growth of the northeastern Tibetan Plateau: A Sr isotope hydrological perspective

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