Titre
Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Normand, Raphaël
Auteure/Auteur
Simpson, Guy
Auteure/Auteur
Herman, Frédéric
Auteure/Auteur
Biswas, Rabiul Haque
Auteure/Auteur
Bahroudi, Abbas
Auteure/Auteur
Schneider, Bastian
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
2196-632X
Statut éditorial
Publié
Date de publication
2019-03-26
Volume
7
Numéro
1
Première page
321
Dernière page/numéro d’article
344
Peer-reviewed
Oui
Langue
anglais
Résumé
The western part of the Makran subduction zone (Iran) is currently experiencing active surface uplift, as attested by the presence of emerged marine terraces along the coast. To better understand the uplift recorded by these terraces, we investigated seven localities along the Iranian Makran and we performed radiocarbon, 230Th∕U and optically stimulated luminescence (OSL) dating of the layers of marine sediments deposited on top of the terraces. This enabled us to correlate the terraces regionally and to assign them to different Quaternary sea-level highstands. Our results show east–west variations in surface uplift rates mostly between 0.05 and 1.2 mm yr−1. We detected a region of anomalously high uplift rate, where two MIS 3 terraces are emerged, but we are uncertain how to interpret these results in a geologically coherent context. Although it is presently not clear whether the uplift of the terraces is linked to the occurrence of large megathrust earthquakes, our results highlight rapid surface uplift for a subduction zone context and heterogeneous accumulation of deformation in the overriding plate.
PID Serval
serval:BIB_CC054D05930B
Open Access
Oui
Date de création
2019-08-19T14:50:08.355Z
Date de création dans IRIS
2025-05-21T00:54:39Z
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Nom
esurf-7-321-2019.pdf
Version du manuscrit
published
Licence
https://creativecommons.org/licenses/by/4.0
Taille
13.12 MB
Format
Adobe PDF
PID Serval
serval:BIB_CC054D05930B.P001
URN
urn:nbn:ch:serval-BIB_CC054D05930B6
Somme de contrôle
(MD5):74b176d01fb79cb4e6fb3d4dddbc98c7