Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data
New high-resolution marine data acquired aboard R/V Le Suroît was used to map active normal faults offshore Montserrat in greater detail. The main faults of the Montserrat-Havers fault zone have cumulative scarps up to 200 m high, and offset sedimentary layers by hundreds of meters. They are arrange...
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sg-ntu-dr.10356-956612020-09-26T21:25:04Z Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data Feuillet, Nathalie Leclerc, Frédérique Tapponnier, Paul Beauducel, François Boudon, Georges Le Friant, Anne Deplus, Christine Lebrun, Jean-Frédéric Nercessian, Alexandre Saurel, Jean-Marie Clément, Valentin DRNTU::Science::Geology::Volcanoes and earthquakes New high-resolution marine data acquired aboard R/V Le Suroît was used to map active normal faults offshore Montserrat in greater detail. The main faults of the Montserrat-Havers fault zone have cumulative scarps up to 200 m high, and offset sedimentary layers by hundreds of meters. They are arranged in a right-stepping, en echelon, trans-tensional array, which confirms that they accommodate the left-lateral component of motion resulting from slip partitioning of oblique convergence along the volcanic arc. They cut across Montserrat's recent volcanic complex. Faulting and fissuring exerted control on the position of andesitic domes, which are aligned along the N110°E average fault trend. The ≈10 km-long fault segments that cross the island could produce damaging, M ≈ 6 events comparable to the shallow, 16 March 1985, Mw∼6.3 earthquake that ruptured a submarine, N140°E striking, left-lateral fault near Redonda. Published version 2012-09-25T08:37:58Z 2019-12-06T19:19:15Z 2012-09-25T08:37:58Z 2019-12-06T19:19:15Z 2010 2010 Journal Article Feuillet, N., Leclerc, F., Tapponnier, P., Beauducel, F., Boudon, G., Le Friant, A., et al. (2010). Active faulting induced by slip partitioning in Montserrat and link with volcanic activity: New insights from the 2009 GWADASEIS marine cruise data. Geophysical Research Letters, 37. 0094-8276 https://hdl.handle.net/10356/95661 http://hdl.handle.net/10220/8638 10.1029/2010GL042556 en Geophysical research letters © 2010 American Geophysical Union. This paper was published in Geophysical Research Letters and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official URL: [http://dx.doi.org/10.1029/2010GL042556]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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DRNTU::Science::Geology::Volcanoes and earthquakes Feuillet, Nathalie Leclerc, Frédérique Tapponnier, Paul Beauducel, François Boudon, Georges Le Friant, Anne Deplus, Christine Lebrun, Jean-Frédéric Nercessian, Alexandre Saurel, Jean-Marie Clément, Valentin Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
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New high-resolution marine data acquired aboard R/V Le Suroît was used to map active normal faults offshore Montserrat in greater detail. The main faults of the Montserrat-Havers fault zone have cumulative scarps up to 200 m high, and offset sedimentary layers by hundreds of meters. They are arranged in a right-stepping, en echelon, trans-tensional array, which confirms that they accommodate the left-lateral component of motion resulting from slip partitioning of oblique convergence along the volcanic arc. They cut across Montserrat's recent volcanic complex. Faulting and fissuring exerted control on the position of andesitic domes, which are aligned along the N110°E average fault trend. The ≈10 km-long fault segments that cross the island could produce damaging, M ≈ 6 events comparable to the shallow, 16 March 1985, Mw∼6.3 earthquake that ruptured a submarine, N140°E striking, left-lateral fault near Redonda. |
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Article |
author |
Feuillet, Nathalie Leclerc, Frédérique Tapponnier, Paul Beauducel, François Boudon, Georges Le Friant, Anne Deplus, Christine Lebrun, Jean-Frédéric Nercessian, Alexandre Saurel, Jean-Marie Clément, Valentin |
author_facet |
Feuillet, Nathalie Leclerc, Frédérique Tapponnier, Paul Beauducel, François Boudon, Georges Le Friant, Anne Deplus, Christine Lebrun, Jean-Frédéric Nercessian, Alexandre Saurel, Jean-Marie Clément, Valentin |
author_sort |
Feuillet, Nathalie |
title |
Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
title_short |
Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
title_full |
Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
title_fullStr |
Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
title_full_unstemmed |
Active faulting induced by slip partitioning in Montserrat and link with volcanic activity : new insights from the 2009 GWADASEIS marine cruise data |
title_sort |
active faulting induced by slip partitioning in montserrat and link with volcanic activity : new insights from the 2009 gwadaseis marine cruise data |
publishDate |
2012 |
url |
https://hdl.handle.net/10356/95661 http://hdl.handle.net/10220/8638 |
_version_ |
1681056286871912448 |