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Pleistocene mass transport deposits off Barbados accretionary prism (Lesser Antilles)

Abstract : Two Pleistocene mass transport deposits (MTDs), with volumes of thousands of km3, have been identified from multi-channel seismic data in the abyssal plain at the front of the Barbados accretionary prism. Estimated sediment volumes for these MTDs are likely underestimated due to limited seismic coverage. In this work, we suggest that these MTDs are comparable in size to large submarine landslides as reported in the literature. These MTDs lie on the vicinity of two major oceanic ridges, the Barracuda Ridge and the Tiburon Rise. It is also suggested in this work that the MTDs come from seismicity associated with the formation of the Barracuda Ridge or the Barbados accretionary prism; however, triggering mechanisms involved in their formation remain uncertain. The present study discusses the potential causal factors accounting for the formation of these MTDs.
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Contributor : Marie José Queyroy Connect in order to contact the contributor
Submitted on : Friday, November 18, 2016 - 2:14:15 PM
Last modification on : Friday, March 18, 2022 - 11:40:02 AM

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Thibaud Pichot, Sara Lafuerza, Martin Patriat, Walter Roest. Pleistocene mass transport deposits off Barbados accretionary prism (Lesser Antilles). Submarine Mass Movements and their Consequences, 41, pp.321-329, 2016, ⟨10.1007/978-3-319-20979-1_32⟩. ⟨hal-01399194⟩



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