Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations

Submarine volcanic eruptions are frequent and important events, yet they are rarely observed. Here we relate bathymetric and hydroacoustic images from the 2011 to 2012 El Hierro eruption with surface observations and deposits imaged and sampled by ROV. As a result of the shallow submarine eruption,...

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Autores: Somoza, Luis, González Sanz, Francisco Javier, Barker, Simon, Madureira, Pedro, Medialdea Cela, Teresa, Ignacio, Cristina de, Lourenço, Nuno, León Buendía, Ricardo F., Vázquez, Juan Tomás, Palomino, Desirée
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/277159
Acceso en línea:http://hdl.handle.net/10261/277159
https://doi.org/10.1002/2016GC006733
Access Level:acceso abierto
Palabra clave:submarine
volcanoes
hotspots
ROV
hydroacoustic
Multibeam
Isla de El Hierro
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spelling Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observationsSomoza, LuisGonzález Sanz, Francisco JavierBarker, SimonMadureira, PedroMedialdea Cela, TeresaIgnacio, Cristina deLourenço, NunoLeón Buendía, Ricardo F.Vázquez, Juan TomásPalomino, DesiréesubmarinevolcanoeshotspotsROVhydroacousticMultibeamIsla de El HierroSubmarine volcanic eruptions are frequent and important events, yet they are rarely observed. Here we relate bathymetric and hydroacoustic images from the 2011 to 2012 El Hierro eruption with surface observations and deposits imaged and sampled by ROV. As a result of the shallow submarine eruption, a new volcano named Tagoro grew from 375 to 89 m depth. The eruption consisted of two main phases of edifice construction intercalated with collapse events. Hydroacoustic images show that the eruptions ranged from explosive to effusive with variable plume types and resulting deposits, even over short time intervals. At the base of the edifice, ROV observations show large accumulations of lava balloons changing in size and type downslope, coinciding with the area where floating lava balloon fallout was observed. Peaks in eruption intensity during explosive phases generated vigorous bubbling at the surface, extensive ash, vesicular lapilli and formed high‐density currents, which together with periods of edifice gravitational collapse, produced extensive deep volcaniclastic aprons. Secondary cones developed in the last stages and show evidence for effusive activity with lava ponds and lava flows that cover deposits of stacked lava balloons. Chaotic masses of heterometric boulders around the summit of the principal cone are related to progressive sealing of the vent with decreasing or variable magma supply. Hornitos represent the final eruptive activity with hydrothermal alteration and bacterial mats at the summit. Our study documents the distinct evolution of a submarine volcano and highlights the range of deposit types that may form and be rapidly destroyed in such eruptions.Instituto Geológico y Minero de España, EspañaSchool of Environment, University of Auckland, Nueva ZelandaEstrutura de Missão para a Extensão da Plataforma Continental, Univerdidade de Évora, PotugalDepartamento de Petrología y Geoquímica, Universidad Complutense de Madrid, EspañaInstituto Português do Mar e da Atmosfera, PortugalInstituto Español de Oceanografía, EspañaJohn Wiley & Sons202220222017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/277159https://doi.org/10.1002/2016GC006733reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#CGL2012- 39524-C02CTM2016- 75947-Rhttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GC006733info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2771592026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
title Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
spellingShingle Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
Somoza, Luis
submarine
volcanoes
hotspots
ROV
hydroacoustic
Multibeam
Isla de El Hierro
title_short Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
title_full Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
title_fullStr Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
title_full_unstemmed Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
title_sort Evolution of submarine eruptive activity during the 2011–2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations
dc.creator.none.fl_str_mv Somoza, Luis
González Sanz, Francisco Javier
Barker, Simon
Madureira, Pedro
Medialdea Cela, Teresa
Ignacio, Cristina de
Lourenço, Nuno
León Buendía, Ricardo F.
Vázquez, Juan Tomás
Palomino, Desirée
author Somoza, Luis
author_facet Somoza, Luis
González Sanz, Francisco Javier
Barker, Simon
Madureira, Pedro
Medialdea Cela, Teresa
Ignacio, Cristina de
Lourenço, Nuno
León Buendía, Ricardo F.
Vázquez, Juan Tomás
Palomino, Desirée
author_role author
author2 González Sanz, Francisco Javier
Barker, Simon
Madureira, Pedro
Medialdea Cela, Teresa
Ignacio, Cristina de
Lourenço, Nuno
León Buendía, Ricardo F.
Vázquez, Juan Tomás
Palomino, Desirée
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv submarine
volcanoes
hotspots
ROV
hydroacoustic
Multibeam
Isla de El Hierro
topic submarine
volcanoes
hotspots
ROV
hydroacoustic
Multibeam
Isla de El Hierro
description Submarine volcanic eruptions are frequent and important events, yet they are rarely observed. Here we relate bathymetric and hydroacoustic images from the 2011 to 2012 El Hierro eruption with surface observations and deposits imaged and sampled by ROV. As a result of the shallow submarine eruption, a new volcano named Tagoro grew from 375 to 89 m depth. The eruption consisted of two main phases of edifice construction intercalated with collapse events. Hydroacoustic images show that the eruptions ranged from explosive to effusive with variable plume types and resulting deposits, even over short time intervals. At the base of the edifice, ROV observations show large accumulations of lava balloons changing in size and type downslope, coinciding with the area where floating lava balloon fallout was observed. Peaks in eruption intensity during explosive phases generated vigorous bubbling at the surface, extensive ash, vesicular lapilli and formed high‐density currents, which together with periods of edifice gravitational collapse, produced extensive deep volcaniclastic aprons. Secondary cones developed in the last stages and show evidence for effusive activity with lava ponds and lava flows that cover deposits of stacked lava balloons. Chaotic masses of heterometric boulders around the summit of the principal cone are related to progressive sealing of the vent with decreasing or variable magma supply. Hornitos represent the final eruptive activity with hydrothermal alteration and bacterial mats at the summit. Our study documents the distinct evolution of a submarine volcano and highlights the range of deposit types that may form and be rapidly destroyed in such eruptions.
publishDate 2017
dc.date.none.fl_str_mv 2017
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/277159
https://doi.org/10.1002/2016GC006733
url http://hdl.handle.net/10261/277159
https://doi.org/10.1002/2016GC006733
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
CGL2012- 39524-C02
CTM2016- 75947-R
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GC006733
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417658536951808
score 15.81155

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