Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/41836
Title: Mega-tsunami conglomerates and flank collapses of ocean island volcanoes
Authors: Paris, Raphaël
Ramalho, Ricardo S.
Madeira, José
Ávila, Sérgio
May, Simon Matthias
Rixhon, Gilles
Engel, Max
Brückner, Helmut
Herzog, Manuel
Schukraft, Gerd
Perez-Torrado, Francisco Jose 
Rodriguez-Gonzalez, Alejandro 
Carracedo, Juan Carlos 
Giachetti, Thomas
UNESCO Clasification: 2506 Geología
250621 Vulcanología
Keywords: Tsunami
Conglomerate
Volcano instability
Landslide
Oceanic shield volcanoes, et al
Issue Date: 2018
Journal: Marine Geology 
Abstract: Marine conglomerates at high elevation on the flanks of ocean islands are usually interpreted as evidence of mega-tsunamis generated by volcano flank collapses, although their origin is sometimes debated (elevated littorals vs. tsunami). In this review, we introduce case studies of well-documented examples of tsunami conglomerates in Hawaii (Pacific Ocean), the Canary and Cape Verde Islands (Atlantic Ocean), and Mauritius Island (Indian Ocean). Other less-documented marine conglomerates are also presented as tsunami candidates. Then, we build a comprehensive picture of the general characteristics of these conglomerates and the different methods that can be applied to date them. Different perspectives of research are proposed, especially on the use of tsunami conglomerates as proxies for better constraining numerical models of ocean island flank collapses and associated tsunamis. We also discuss the possible links between volcano growth, flank instability, and climate.
URI: http://hdl.handle.net/10553/41836
ISSN: 0025-3227
DOI: 10.1016/j.margeo.2017.10.004
Source: Marine Geology[ISSN 0025-3227],v. 395, p. 168-187
Appears in Collections:Reseña
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