F. Vilas

Universidade de Vigo

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D. Rey

Universidade de Vigo

Ana M. Bernabéu

Universidade de Vigo

B. Rubio

Universidade de Vigo

Soledad García‐Gil

Universidade de Vigo

MÃ

Miguel Ãngel Nombela

Universidade de Vigo

Kais J. Mohamed

Universidade de Vigo

I. Alejo

Universidade de Vigo

Guillermo Francés

Universidade de Vigo

Ruth Durán

Institut de Ciències del Mar

Paula Diz

Universidade de Vigo

Cooperative Institutions

Universidade de Vigo

Consejo Superior de Investigaciones Científicas

Instituto Español de Oceanografía

Planetary Science Institute

Universidad Complutense de Madrid

Universidade de Santiago de Compostela

Centro Mediterráneo de Investigaciones Marinas y Ambientale

Institut Català de Ciències del Clima

Institut de Ciències del Mar

National Research Council

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Side scan sonar image and geologic interpretation of the Ría de Pontevedra seafloor (Galicia, NW Spain)

Scientia Marina (2000)

Soledad García‐Gil Ruth Durán F. Vilas

High-resolution side scan sonar has been used for mapping the seafloor of the Ria de Pontevedra. Four backscatter patterns have been mapped within the Ria: (1) Pattern with isolated reflections, correlated with granite and metamorphic outcrops and located close to the coastal prominence and Ons and Onza Islands. (2) Pattern of strong reflectivity usually located around the basement outcrops and near the coastline and produced by coarse-grained sediment. (3) Pattern of weak backscatter is correlated with fine sand to mud and comprising large areas in the central and deep part of the Ria, where the bottom currents are weak. It is generally featureless, except where pockmarks and anthropogenic features are present. (4) Patches of strong and weak backscatter are located in the boundary between coarse and fine-grained sediments and they are due to the effect of strong bottom currents. The presence of megaripples associated to both patterns of strong reflectivity and sedimentary patches indicate bedload transport of sediment during high energy conditions (storms). Side scan sonar records and supplementary bathymetry, bottom samples and hydrodynamic data reveal that the distribution of seafloor sediment is strongly related to oceanographic processes and the particular morphology and topography of the Ria.

Outcrop

Seafloor Spreading

Side-scan sonar

Backscatter (email)

10.3989/scimar.2000.64n4393

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Citations (18)

Estuary

Springer eBooks (2014)

F. Vilas B. Rubio D. Rey Ana M. Bernabéu

10.1007/978-1-4614-9213-9_621-1

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Citations (2)

Constraints on the size, shape, and density of (4) Vesta.

Bulletin of the American Astronomical Society (1989)

R. L. Millis O. G. Franz L. H. Wasserman L. A. Lebofsky E. Asphaug

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Las glauconitas de la plataforma continental gallega: indicadores geoquímicos del grado de evolución.

Journal of Iberian Geology (2000)

L. Gago-Duport Tomás García A. Santos A. Velo F. Vilas

10.5209/jige.34024

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Sedimentación intermareal en la bahía de San Sebastián, Tierra de Fuego, Argentina

Acta Geologica Hispanica (1986)

F. Vilas Alfredo Arché Gustavo González Bonorino Federico Ignacio Isla Hugo Inda

La Bahia de San Sebastian se encuentra situada al NE de la Isla Grande de Tierra del Fuego, en la costa atlantica. Tiene forma semicircular con dimensiones de unos 55 km de N a S y de unos 40 de E a W; el rango mareal oscila entre 3,2 y 10,5 m. Existen dos areas de sedimentacion caracteristicas muy diferentes: la Peninsula del Paramo, formada por playas de gravas y la bahia, propiamente dicha, cuya zona intermareal tiene una anchura de 7 a 10 km durante la marea baja equinoccial, en la que se pueden diferenciar las siguientes areas de sedimentacion: llanuras mareales fangosas; llanura de cheniers con llanura fangosa; playa de arenagrava y llanura mareal mixta; costa acantilada sin sedimentacion apreciable y complejo playa-lagoon. El viento del W, que supera los 60 km mas de 200 dias al ano es otro factor dominante en los procesos de sedimentacion del area, sobre todo en su parte mas alta.

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Diagenesis and anthropogenesis of metals in the recent Holocene sedimentary record of the Ría de Vigo (NW Spain)

Marine Pollution Bulletin (2010)

B. Rubio P. Álvarez-Iglesias F. Vilas

Terrigenous sediment

10.1016/j.marpolbul.2010.04.014

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Citations (20)

Coastal processes in northwestern Iberia, Spain

Continental Shelf Research (2011)