Caracterización y clasificación de las estructuras diapíricas localizadas en el talud medio del Golfo de Cádiz
- M.C. Fernández Puga 1
- J.T. Vázquez 1
- L. Somoza 2
- T. Medialdea 2
- V. Díaz del Río 3
- L.M. Pinheiro 4
- 1 Facultad de Ciencias del Mar (CASEM) Universidad de Cádiz
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2
Instituto Geológico y Minero de España
info
- 3 nstituto Español de Oceanografía
- 4 Departamento de Geociencias, Universidad de Aveiro, Portugal
ISSN: 1576-5172
Año de publicación: 2004
Título del ejemplar: VI CONGRESO GEOLÓGICO DE ESPAÑA, ZARAGOZA, 12-15 JULIO, 2004
Número: 6
Páginas: 171-174
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
The aim of this paper is the study of the diapiric structures along the Middle Slope of the Gulfof Cadiz by means of seismic reflection profiles interpretation. These diapiric structures extendacross a wide sector of the margin and modified the sea-floor phisiography. Diapirs show ageneral NE-SW trend as well as variable morphology, geometry and magnitude. Most of themshows an assymetric geometry caused by regional tectonic stress, also they could be outcropping or deforming the sea-floor. Main diapirs are related to the Gulf of Cadiz AllocthonousUnits and are placed in different tectonic styles: a) extensional, related to listric faults, and b)compressional, relate to reverse faults. In other sense, numerous morphologies like mud volcanoes pockmaks, colapses and carboante deposits related with gas expulsion from diapirs appearover the continental slope.