Discussion of “Role of the River Shear zone, Yunnan and Vietnam, in the continental extrusion of SE Asia” by M. Searle.
P.H. Leloup 1, P. Tapponnier 2, R. Lacassin 2
1 Université de Lyon, Lyon, F-69003, France ; université Lyon 1, Lyon, F-69003, France ; Ecole normale supérieure de Lyon, Lyon, F-69634, France ; CNRS, UMR 5570, Laboratoirdes sciences de la terre, Villeurbanne, F-69622, France.Abstract:
In
his recent paper, M. Searle (2006) acknowledges that the 1000 km-long
Ailao Shan – Red River shear zone (ASRR) is a large Miocene
left-lateral shear zone, but speculates that left-lateral slip started
after 21 Ma and claims that the total finite offset remains unknown.
From this he concludes that continental extrusion was only a relatively
minor tectonic factor during the India-Asia collision, as long argued
by other authors (e.g., England & Houseman, 1986; Cobbold &
Davy, 1988; Dewey et al., 1989; Houseman & England, 1993). We
summarize below the field and geochronological evidence that makes us
maintain a viewpoint in better accordance with facts.
Citation: P.H. Leloup, P. Tapponnier,
R. Lacassin and M. P. Searle, 2007. Discussion on the role of the Red
River shear zone, Yunnan and Vietnam, in the continental extrusion of
SE Asia, Journal of the geological Society, v. 164, p. 1253-1260, doi:
10. 1144/0016-76492007-065.
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Déformation de la lithosphère continentale. Exemple de l'Asie du SE au Tertiaire |