Mapping of the recent and subrecent faults in the Alboran Sea based on multibeam bathymery and seismic records. They are related to NNE-SSW broad band of deformation due to the convergence between Iberia and African plates. The mapping of the faults has been done based on a high resolution multibeam bathymetry (grid cell 50 m and 100) and multi- and single-channel seismic records from low to very high resolution.

The seismic profile was obtained in order to map of the morphological features and to characterize the sedimentary systems in the Spanish continental margin of the Alboran Sea.

The seismic profile was obtained in order to map of the morphological features and to characterize the sedimentary systems in the northern of the Alboran Sea. High-resolution seismic profile acquisition. A high resolution three-channel GIS streamer with an active section length of 150 meters is used (3 active sections of 50 meters each). Each active section is configured to form 1 channel, adding 40 hydrophones per channel, obtaining 50 meters of separation between the three groups. The DELPH SEISMIC acquisition system is used. 6 Sercel GGUN-II guns are used, (70+70 cu.in, 150+150 cu.in, 45+45 cu.in), obtaining a string of 530 c.i. The recording format is in SEG-Y format. The EIVA navigation system is used. It is fired every 6 seconds.

The seismic profile was obtained in order to map of the morphological features and to characterize the sedimentary systems in the northern of the Alboran Sea. High-resolution seismic profile acquisition. A high resolution three-channel GIS streamer with an active section length of 150 meters is used (3 active sections of 50 meters each). Each active section is configured to form 1 channel, adding 40 hydrophones per channel, obtaining 50 meters of separation between the three groups. The DELPH SEISMIC acquisition system is used. 6 Sercel GGUN-II guns are used, (70+70 cu.in, 150+150 cu.in, 45+45 cu.in), obtaining a string of 530 c.i. The recording format is in SEG-Y format. The EIVA navigation system is used. It is fired every 6 seconds.

The seismic profile was obtained in order to map of the morphological features and to characterize the sedimentary systems in the northern of the Alboran Sea. High-resolution seismic profile acquisition. A high resolution three-channel GIS streamer with an active section length of 150 meters is used (3 active sections of 50 meters each). Each active section is configured to form 1 channel, adding 40 hydrophones per channel, obtaining 50 meters of separation between the three groups. The DELPH SEISMIC acquisition system is used. 6 Sercel GGUN-II guns are used, (70+70 cu.in, 150+150 cu.in, 45+45 cu.in), obtaining a string of 530 c.i. The recording format is in SEG-Y format. The EIVA navigation system is used. It is fired every 6 seconds.

High-resolution seismic profile acquisition. A high resolution three-channel GIS streamer with an active section length of 150 meters is used (3 active sections of 50 meters each). Each active section is configured to form 1 channel, adding 40 hydrophones per channel, obtaining 50 meters of separation between the three groups. The DELPH SEISMIC acquisition system is used. 6 Sercel GGUN-II guns are used, (70+70 cu.in, 150+150 cu.in, 45+45 cu.in), obtaining a string of 530 c.i. The recording format is in SEG-Y format. The EIVA navigation system is used. It is fired every 6 seconds.

The seismic profile was collected using airgunguns located at a depth of 3.5 m and with a shot frequency of 8 s. The penetration of the acoustic signal was 2–3 s two-way travel time, and the resolution was tens of metres (i.e., a middle resolution of 10/15 m). The streamer was a SIG streamer with an active section of 150 m long, comprising three independent channels with 40 hydrophones each. A GeoAcoustics Sonar Enhancement System (SES) was used for the acquisition and processing of the seismic signals from the streamer. Sampling frequency was 1 ms.

Multibeam bathymetry in the framework of a paleoceanographic study in order to analyze the variability of the North Atlantic deep circulation through the study of sedimentary records in the Charlie-Gibbs fracture zone.

For the mapping of the canyon features a database with over 1500 km of 2D multi- and single-channel seismic lines, with different degrees of resolution (from a few metres to metric) together with high-resolution multi-beam bathymetry has been analysed and interpreted. Multi-channel seismic records were downloaded from the Archivo Técnico de Hidrocarburos (https:// geoportal.minetur.gob.es/ATHv2/welcome.do). Single-channel records were mostly obtained with airgun systems (140 to 530 c.i.) and are included in the database from the Instituto de Ciencias del Mar, ICM-CSIC, http://www.icm.csic.es/geo/gma/SurveyMaps. Several multi-beam bathymetry datasets obtained with Simrad EM12 and Atlas HYDROSWEEP DS multibeam echosounders were also compiled and integrated for the present study from the MARCONI, CONTOURIBER, MOWER and BARACA projects, the Fishing General Secretary (Spanish Government) and the EMODnet bathymetry. These data were gridded to a resolution of 200, 100 and 50 m.

For the mapping of the canyon features a database with over 1500 km of 2D multi- and single-channel seismic lines, with different degrees of resolution (from a few metres to metric) together with high-resolution multi-beam bathymetry has been analysed and interpreted. Multi-channel seismic records were downloaded from the Archivo Técnico de Hidrocarburos (https:// geoportal.minetur.gob.es/ATHv2/welcome.do). Single-channel records were mostly obtained with airgun systems (140 to 530 c.i.) and are included in the database from the Instituto de Ciencias del Mar, ICM-CSIC, http://www.icm.csic.es/geo/gma/SurveyMaps. Several multi-beam bathymetry datasets obtained with Simrad EM12 and Atlas HYDROSWEEP DS multibeam echosounders were also compiled and integrated for the present study from the MARCONI, CONTOURIBER and MOWER projects and the Fishing General Secretary (Spanish Government). These data are gridded to a resolution of 50 m