Record of enhanced late Pliocene tectono-volcanic activity in the Lesser Antilles forearc basin: Insights into the long-term behaviour of the Lesser Antilles subduction zone
| Autor: | Melody Philippon, Jean-Jacques Cornée, Jean-Frederic Lebrun, Auran Randrianasolo, Lyvane De Min, Philippe Münch, Mélanie Noury, Jean-Len Léticée |
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| Přispěvatelé: | Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
| Rok vydání: | 2017 |
| Předmět: |
[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics
geography Piacenzian geography.geographical_feature_category 010504 meteorology & atmospheric sciences Pleistocene Subduction Volcanic arc Geology 15. Life on land 010502 geochemistry & geophysics 01 natural sciences Tectonics Paleontology Volcano 13. Climate action Sedimentary rock 14. Life underwater Forearc Geomorphology 0105 earth and related environmental sciences |
| Zdroj: | Terra Nova Terra Nova, Wiley-Blackwell, 2017, 29 (4), pp.245-252. ⟨10.1111/ter.12271⟩ |
| ISSN: | 0954-4879 1365-3121 |
| Popis: | In this study, we investigate the Lesser Antilles forearc basin, focusing on the late Pliocene to Pleistocene sedimentary archives in order to track the occurrence of extreme events triggered by enhanced subduction-related tectono-volcanic activity. We identify late Piacenzian deposits covering a major regional erosional surface, displaying sedimentary dykes and large marine boulders embedded in a mixed continental–marine matrix, characteristic of tsunamites. We interpret this episode of platform emersion and the successive cataclysmic deposits as resulting from enhanced tectonic activity at the interface of the subduction zone, synchronous with the initiation of the Lesser Antilles volcanic arc. We then discuss the implications in terms of the mechanical behaviour of the Lesser Antilles subduction zone. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
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