晚中新世龙门山南段及前缘地区盆山体系形成的动力学机制

Shao, Chongjian; Yan, Zhaokun; Li, Yong; Nie, Zhou; Ren, Cong; Sun, Yue

doi:10.3799/dqkx.2022.279

Eart. Scie.

2023

DOI: 10.3799/dqkx.2022.279

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晚中新世龙门山南段及前缘地区盆山体系形成的动力学机制

Chongjian Shao,

Zhaokun Yan,

Yong Li

et al.

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2024

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Cited by 2 publications

References 42 publications

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Formation of the Tibetan Plateau during the India-Eurasia Convergence: Insight from 3-D Multi-Terrane Thermomechanical Modeling

Chen,

Zhu,

Yuan

et al. 2024

J. Earth Sci.

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Various models exist to explain the formation of the Tibetan Plateau, including “tectonic escape”, “pure shear thickening”, “convective removal of the lithospheric mantle”, and “lower crustal flow” model. The first two models are primarily constructed on pure mechanical models but are unable to reasonably explain the tension and shear phenomena inside the plateau. The latter two are rheological dynamic models based on deep geophysical observations. However, the spatial range of the lower crustal flow and its role in the plateau formation/uplift remain controversial. Five multi-terrane viscoplastic thermomechanical models were constructed to simulate the uplift and lithospheric structure change of the Tibetan Plateau during the post-collision stage (since 35 Ma) under the convergence of the Indian Plate. Results show that the plateau’s formation begins with crustal thickening, blocked by strong terranes at the northern plateau, and expanded laterally to the east. The lithosphere thickens gradually and experiences delamination at its base, elevating temperature within the crust and forming partial melting layers in the central plateau. As convergence persists on the southern side, the northern plateau’s lithosphere bends downward and undergoes delamination, further heating the crust and promoting the northward and eastward flow of partial melting layers, leading to secondary uplift around the plateau.

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Formation of the Tibetan Plateau during the India-Eurasia Convergence: Insight from 3-D Multi-Terrane Thermomechanical Modeling

Chen,

Zhu,

Yuan

et al. 2024

J. Earth Sci.

View full text Add to dashboard Cite

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Imaging the Western Boundary of the Sichuan Craton from Multiple Geophysical Observations

Yin,

Xu,

Yang

et al. 2024

J. Earth Sci.

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晚中新世龙门山南段及前缘地区盆山体系形成的动力学机制

Cited by 2 publications

References 42 publications

Formation of the Tibetan Plateau during the India-Eurasia Convergence: Insight from 3-D Multi-Terrane Thermomechanical Modeling

Formation of the Tibetan Plateau during the India-Eurasia Convergence: Insight from 3-D Multi-Terrane Thermomechanical Modeling

Imaging the Western Boundary of the Sichuan Craton from Multiple Geophysical Observations

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