Various lithospheric deformation patterns derived from rheological contrasts between continental terranes: insights from 2-D numerical simulations
Abstract Continents are formed by the amalgamation of numerous micro-terranes and island arcs, so they have spatially varying lithosphere strengths. The crème brûlée (CB) model and the jelly sandwich (JS) model have been commonly used to describe continental lithosphere strength–depth variations. Depending on the strength of the continental lower crust, the CB and JS models can be further subdivided into two subclasses in which the I subclass (CB-I and JS-I) and II subclass (CB-II and JS-II), respectively, have a strong or weak lower crust. During the continental collision, lithosphere deformation is the byproduct of the comprehensive interaction of multiple terranes. Here we used 2-D thermomechanical numerical models that contain three continental terranes to systematically explore the effects of terranes with various strengths on continental deformation and studied the effects of different rheological assumptions on terrane deformation. We found four types of lithosphere deformation patterns: collision, subduction, thickening and delamination, and replacement. These simulation patterns are seen in observed deformation patterns and structures in East Asia, suggesting they are likely to be naturally occurring modes of intracontinental orogenesis.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Various lithospheric deformation patterns derived from rheological contrasts between continental terranes: insights from 2-D numerical simulations ; volume:15 ; number:7 ; year:2024 ; pages:789-806 ; extent:18
Solid earth ; 15, Heft 7 (2024), 789-806 (gesamt 18)
- Urheber
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Xie, Renxian
Chen, Lin
Morgan, Jason P.
Chen, Yongshun John
- DOI
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10.5194/se-15-789-2024
- URN
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urn:nbn:de:101:1-2408061136309.502637374448
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 01:43 MESZ
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Beteiligte
- Xie, Renxian
- Chen, Lin
- Morgan, Jason P.
- Chen, Yongshun John
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