caa a22 4500 463216318 CHVBK 20180405153157.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s00367-007-0076-0 doi (NATIONALLICENCE)springer-10.1007/s00367-007-0076-0 Gas-related morphologies and diapirism in the Gulf of Cádiz [Elektronische Daten] [M. Fernández-Puga, J. Vázquez, L. Somoza, V. Díaz del Rio, T. Medialdea, M. Mata, R. León] Recently developed high-resolution profiling (multibeam, sonar) and surface sampling were used to map seafloor morphology of the Gulf of Cádiz middle continental slope. Multichannel seismic profiling has made it possible to elucidate the geologic origin of these features as well as the main triggering mechanisms of gas-related morphologies, principally mud volcanoes, carbonate mud mounds, pockmarks and slides. Throughout the entire Gulf of Cádiz, from the continental slope to the shelf and even on land, a close correlation between morphology and gas mobility and associated diapirism can be observed. The middle slope area is strongly deformed by several diapiric ridges, named Guadalquivir, Cádiz and Doñana. Most of the diapirs identified in this study are related to the Allochthonous Unit of the Gulf of Cádiz, a chaotic body emplaced during the Tortonian, containing salt and shale nappes affected by later gravitational extension collapse and reactivated compression thrusts. It can be proposed that diapirism and related tectonics provided gas migration pathways. Springer-Verlag, 2007 Fernández-Puga M. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut Vázquez J. Facultad de Ciencias del Mar y Ambientales, University of Cádiz, Campus dePuertoReal s/n, 11510, Puerto Real, Cádiz, Spain aut Somoza L. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut Díaz del Rio V. Instituto Español de Oceanografía de Málaga (IEO), Puerto Pesquero s/n, 29640, Fuengirola, Málaga, Spain aut Medialdea T. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut Mata M. Facultad de Ciencias del Mar y Ambientales, University of Cádiz, Campus dePuertoReal s/n, 11510, Puerto Real, Cádiz, Spain aut León R. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut Geo-Marine Letters Springer-Verlag 27/2-4(2007-06-01), 213-221 0276-0460 27:2-4<213 2007 27 367 https://doi.org/10.1007/s00367-007-0076-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00367-007-0076-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fernández-Puga M. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut NATIONALLICENCE 700 1- Vázquez J. Facultad de Ciencias del Mar y Ambientales, University of Cádiz, Campus dePuertoReal s/n, 11510, Puerto Real, Cádiz, Spain aut NATIONALLICENCE 700 1- Somoza L. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut NATIONALLICENCE 700 1- Díaz del Rio V. Instituto Español de Oceanografía de Málaga (IEO), Puerto Pesquero s/n, 29640, Fuengirola, Málaga, Spain aut NATIONALLICENCE 700 1- Medialdea T. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut NATIONALLICENCE 700 1- Mata M. Facultad de Ciencias del Mar y Ambientales, University of Cádiz, Campus dePuertoReal s/n, 11510, Puerto Real, Cádiz, Spain aut NATIONALLICENCE 700 1- León R. Marine Geology Division, Geological Survey of Spain (IGME), Ríos Rosas 23, 28023, Madrid, Spain aut NATIONALLICENCE 773 0- Geo-Marine Letters Springer-Verlag 27/2-4(2007-06-01), 213-221 0276-0460 27:2-4<213 2007 27 367 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer