BUSCADOR RECOLECTA

MVSEIS Cruise (29HE20080516) carried out on the Research Vessel Hespérides in 2008, MVSEIS: Tectonic control, deep structure and the mud volcanoes of the Gulf of Cádiz characteristics. The main scientific objectives of the MVSEIS campaign can be summarized as follows: 1) Study the morphology and the internal geophysical configuration (seismic, magnetic and gravimetric) of the mud volcanoes and carbonate diapiric dorsal continental margins of the Gulf of Cádiz. 2) Identify, sample and photograph possible active structures of emissions of Fluids in the bottoms of diapiric ridges and mud volcanoes. 3) Sample gas hydrates associated with mud volcanoes and study the geothermal and oceanographic conditions for its formation. 4) Identify and sample biomineralizations (nodules, crusts, chimneys, etc.) by the action of micro / macro chemosynthetic organisms by anaerobic oxidation of methane and / or dissociation of hydrated gases (clathrates). 5) Recognize the role of global (paleo) oceanographic / climatic changes and tectonics in the formation and evolution of mud volcanoes, diapiric ridges carbonated, deep chemosynthetic reefs and associated biomineralisations

SAGAS Cruise (29HE20081122) carried out on the Research Vessel Hespérides in 2008, This project intends to study, through a multidisciplinary geological and geophysical approach, the current structure and recent evolution of the Gibraltar arch system (sag), which includes the basins and margins of the Alboran and Algerian-Balearic sea and its surroundings, the orogen bético-rifeño and the accretion prism of the Gulf of Cádiz. The objective is to gain a better understanding of the dynamics of the internal processes that affect the lithosphere and the earth's crust, the dynamics of external processes responsible for morphology, sedimentation and geoenvironment, and the interrelation between deep and superficial processes. The specific objectives refer to processes and mechanisms that occur at different scales, and therefore require complementary approaches, activities and methods. The project would increase the geological and geophysical infrastructure in the Spanish Mediterranean and is of interest for allowing actions aimed at preventing and designing contingency plans for geological and environmental risks in a region in which considerable earthquakes and underwater landslides occur

ESPOR Cruise (29HE20081101) carried out on the Research Vessel Hespérides in 2008, ESPOR( ESpaña-PORtugal) Joint Scientific Study of Spain and Portugal for the Extension of the Continental Shelf in the margin of Galicia Bank, in accordance with Article 76 of the United Nations Convention on the Law of the Sea. Ocean Bottom Sismograph deployment (OBS), parametric probe TOPAS and gravimetry, EM120 multibeam echosounder