Echo-character of the NW Iberian continental margin and the adjacent abyssal plains

Show simple item record Maestro González, Adolfo Jané Sánchez, Gloria Fernández Sáez, Fernando Llave Barranco, Estefanía Bohoyo Muñoz, Fernando Navas Madrazo, José Javier Mink Proeck, Sandra Martina Gómez Ballesteros, María Martín Dávila, José Catalán Morollón, Manuel 2021-01-13T06:05:36Z 2021-01-13T06:05:36Z 2018-02-06
dc.identifier.citation Journal of maps (2018), vol.14, n.2, p.56-67 es_ES
dc.identifier.issn 1744-5647
dc.description.abstract The acoustic facies analyses have provided an important basis for sedimentary processes in the deep-sea environments. The echo-character mapping, through the interpretation and correlation of very high-resolution seismic profiles, is a very useful tool for the characterization of the recent sedimentary processes and their distribution. This work presents the first echo-character map at 1:800,000 scale of the Galicia Continental Margin and the adjacent abyssal plains elaborated by the Geological Survey of Spain. The map was carried out on the basis of the analysis and interpretation of the bathymetry and reflectivity data from the SIMRAD EM12, EM120 and EM1002 echosounders, and the high-resolution seismic profiles from the SIMRAD TOPAS PS18 parametric echosounder. On the basis of seafloor morphology, surface bedforms, backscatter and sub-bottom acoustic echocharacters, 26 echo-types were identified in the uppermost sedimentary sequence. These echo-types have been grouped into four main echoes: Distinct, Irregular, Hyperbolic and Undulated, according to their main acoustic characteristics. This information has been acquired in the framework of the ‘Scientific Research Program of the Economic Exclusive Zone of Spain’, which is coordinated and leaded by the Defense Ministry of Spain, during the oceanographic cruises carried out on board of the R/V Hesperides in 2001–2003 and 2006–2009. es_ES
dc.description.sponsorship Instituto Geológico y Minero de España, España es_ES
dc.description.sponsorship Instituto Español de Oceanografía, España es_ES
dc.description.sponsorship Real Instituto y Observatorio de la Armada, España es_ES
dc.language.iso en es_ES
dc.publisher Taylor & Francis es_ES
dc.relation Realización de las actividades establecidas en el Convenio de colaboración entre el Ministerio de Defensa y el IGME para la ejecución de actuaciones en el ámbito del Plan de Investigación Científica de la ZEEE (Referencia 2476). es_ES
dc.rights Acceso abierto es_ES
dc.subject backscatter es_ES
dc.subject bathymetry es_ES
dc.subject echo-character es_ES
dc.subject high-resolution seismic profiles es_ES
dc.subject Iberian Margin es_ES
dc.subject sedimentary processes es_ES
dc.subject margen continental es_ES
dc.subject Galicia es_ES
dc.title Echo-character of the NW Iberian continental margin and the adjacent abyssal plains es_ES
dc.type Postprint es_ES
dc.relation.publisherversion es_ES
dc.description.funder Instituto Geológico y Minero de España, España es_ES
dc.identifier.doi es_ES
dc.coverage.spatialStudy Galicia, España es_ES

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