Titre | Structural geometry and kinematic processes at the intracontinental Daloushan mountain chain: Implications for tectonic transfer in the Yangtze Block interior |
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Auteur | Deng, B; Li, Z -W; Liu, S -G; Wang, G -Z; Li, S -J; Qin, Z -P; Li, J -X; Jansa, L |
Source | Comptes rendus. Géoscience vol. 348, 2, 2016 p. 159-168, https://doi.org/10.1016/j.crte.2015.06.009 Accès ouvert |
Année | 2016 |
Séries alt. | Ressources naturelles Canada, Contribution externe 20182085 |
Éditeur | Elsevier BV |
Document | publication en série |
Lang. | anglais |
DOI | https://doi.org/10.1016/j.crte.2015.06.009 |
Media | papier; en ligne; numérique |
Formats | pdf |
Diffusé | 2016 02 01 |
Résumé | (disponible en anglais seulement) The Daloushan mountain chain, located in the centre of the upper Yangtze continental block, is considered to represent the locus of the tectonic shortening
resulting from the eastward growth of the Tibetan Plateau and NW-thrusting of the Xuefeng Orogen. Structural data and apatite fission-track ages have been used to decipher the geometry and the kinematic evolution of the Daloushan. The latter is
subdivided into two domains: the eastern domain, governed by west- to NW-verging thrusting and deformation with dextral transpression, and a western domain, governed by south-verging thrusting and deformation. Both domains experienced four episodes
of deformation, synchronous with the four stages of post-Cretaceous denudation, marked by rapid cooling propagating eastward from 20 to 5 Ma, at a rate of 0.1 mm/year. In particular, the last two episodes of denudation are closely related to the
growth of the Tibetan Plateau. This indicates an intra-continental transfer of tectonic forcing from the Palaeo-Pacific to the Tethys-Himalayan Tectonic Domain across the Daloushan. © 2015 Acadmie des sciences. |
GEOSCAN ID | 310635 |
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