Estudio de la estructura interna de una barrera de arena mediante geo-radar. Islas Cíes, NO España
- S. Costas 1
- F. Rial 2
- I. Alejo 1
- H. Lorenzo 2
- M. Nombela 1
- 1 Dpto. Xeociencias Marinas e O.T., Facultad de Ciencias, Universidade de Vigo
- 2 Dpto. Enxeñería dos Recursos Naturais e Medio Ambiente, E.U. de Enxeñería Técnica Forestal, Universidade de Vigo
ISSN: 1576-5172
Ano de publicación: 2004
Título do exemplar: VI CONGRESO GEOLÓGICO DE ESPAÑA (Zaragoza, 12-15 julio, 2004)
Número: 6
Páxinas: 211-214
Tipo: Artigo
Outras publicacións en: Geotemas (Madrid)
Resumo
Ground-penetrating radar (GPR) is used to investigate the stratigraphy and internal sedimentarystructure of a sand barrier at Cíes Islands. Application of radar stratigraphy allows the delineationof both bounding surfaces and intervening beds. The succession of different sedimentary eventsduring the geological evolution is introduced with regard to the surfaces morphology. The succession shows three different units that correspond with a specific environment conditions. In thissense, we have identified from rocky substract upwards: basin infilling, transgressive deposits andsand barrier aggradation. The sedimentary infilling sequence was correlated with a particular sealevel state.