BUSCADOR RECOLECTA

ECOANTAR Cruise (29HE19940101) carried out on the Research Vessel Hespérides in 1994, Oceanographic dynamic and plankton ecosystem in the eastern Bransfield Strait. The objectives of the campaign are focused on 1) Characterization of the marine circulation and the functioning of the plantonic ecosystem in the eastern part of the Bransfield Strait and adjacent areas and 2) Study of the structure and diversity of bacterial and zooplanktonic communities in the main water masses that lie between the Drake Strait and the Antarctic Peninsula

BENTART-94 Cruise (29HE19940201) carried out on the Research Vessel Hespérides in 1994, Study of benthic fauna and flora of the bottoms in the south of Livingston Island area. Specific objectives:1) Taxonomic determination of the species belonging to the macrobenthos and meiobenthos. 2) Estimates of the abundance of different species, genera, orders, classes of both the epifauna and epiflora and the infauna. 3) Estimates of the most important physico-chemical variables that influence the distribution and abundance of Antarctic benthos (depth, texture of the substrate, composition in organic matter, carbonates, temperature and salinity). 4) Collection of benthic material for the study of producers of bioactive substances. 5) Collections of fauna and flora of biological interest 6) Bionomic mapping through subamrino video sampling. 7) Study of the temporal variation of primary and secondary production. 8) Study of the stomach contents of demersal fish for the establishment of trophic networks

PASO Cruise (29HE19940301) carried out on the Research Vessel Hespérides in 1994, Geophysical survey in the South Pacific: Volcanic Belt of Pascua (Hot-Line) and Society Islands (Hot-Spot). The first objective consists in the investigation of the genesis and evolution of the Easter Volcanic Belt, which is an alignment of submarine volcanoes located east of Easter Island and that connects in its easternmost sector with the Nazca Ridge. The knowledge of the cortical structure, as well as the main segmentation directions of the Nazca Plate will allow to quantify the relative movements of the Pascua and Juan Fernandez microplates and therefore define the plate kinematics of an important sector of the South Pacific with implications in seismicity on the western coast of South America. The second objective is the obtaining of significant geophysical parameters for the study of the generation of volcanic rocks and / or submarine volcanic chains, in a context of interplate volcanism referred to the mechanical response of the lithosphere in function of the speed and changes in the expansion oceanica (generation of new lithosphere)

CRESCENT-1 Cruise (29HE19940930) carried out on the Research Vessel Hespérides in 1994, Morphostructural control of sedimentary record and current sediment transfer in the Central-Eastern Atlantic: Agadir canyon and Hierro Island 1) Study in detail the morpho structure of the Agadir Canyon, with special incidence in the transition area between the mouth of the canyon and the channel and the channel of the turbiditic system, determining the morphology, geometry, stratigraphy and nature of the associated deposits. 2) Study the current sedimentary activity in the submarine canyons and the geological processes. The effect of current dynamic processes on the sedimentary record will be evaluated by analyzing the impact that similar processes could have had in the past. 3) Map the areas of sedimentary instability and establish the relative importance of the instability processes as modeling modifying agents in the morph-structure of the slope, base-slope and basin. 4) Establish relations between the processes of canalized transport, sedimentary instability and mass landslides, and the development of deposits of "debris flows" or turbidites in slopes and basins. Determine the factors - changes in sea level, seismic and / or volcanic activity, which control this interaction. 5) Assign the chronology of the seismic reflectors in the high resolution seismic profiles of BPS based on the chrono-stratigraphic units of the DSDP Sites. 415, 416 in the area of ​​the Agadir basin

CRESCENT-2 Cruise (29HE19941204) carried out on the Research Vessel Hespérides in 1994, Morphostructural control of the sedimentary record and current transfer of sediment in the Central-Eastern Atlantic: Agadir canyon and Isla del Hierro (CRESCENT) 1) Transport and / or sediment accumulation through non-channeled areas - submarine landslides 2) The role developed by large-scale submarine landslides in the modification of the relief in the slope and base areas of the slope and especially in the geological evolution of volcanic islands. 3) Establish a detailed bathymetry of the slopes that surround the island of El Hierro that will allow to delimit the deposits of debris resulting from the possible landslides. 4) Map the areas of sedimentary instabilities and establish the relative importance of the instability processes as modifying agents of the slope modeling and slope base of volcanic islands. 5) Establish the possible alternation of periods of stability and instability that will allow stratigraphically relate the development of these landslides in relation to other active sedimentary processes in the region and even with past volcanic eruptions (vulcano-sedimentary deposits) 6) Reconstruct the recent kinematic evolution of the eastern-central Atlantic basin and its possible comparison with the conjugated atlantic margin and with other nearby margins, including the characterization of pre-sin and post-rift sediments, and comparison with other well-studied and relatively close passive margins (margin of Galicia) 7) Perform a geological and geophysical mapping through the magnetism and gravimetry data, to know the current and deep structure of the basement (oceanic crust of the Central Atlantic) 8) Comparative study of the volcano-tectonic processes (magmatic flows ) and possible submarine hydrothermalism associated with the formation n of the Isla del Hierro, located in a particular context of interplaca volcanism ("hot spot")

SCAN-1997 Cruise (29HE19970114) carried out on the Research Vessel Hespérides in 1997, Geodynamics and Paleoceanography of continental margins and basins: northern Antarctic Peninsula. (SCAN´ 97). Objectives of the SCAN 97 campaign: 1) Complete the study of the Powell Basin. 2) In the northwestern Wedell Sea, the mechanisms of continental fragmentation and backarc basin development models have been studied. The structure, seismic stratigraphy and evolution have been investigated, with the objective of studying the Cenozoic subduction along the Jane backarc and Jane arc. 3) The border between the Antarctic / Scotia plates has been studied in order to establish the current and Cenozoic dynamics between this larger plate limit in the South Atlantic

MAYC-97_ORINOCO Cruise (29HE19970225) carried out on the Research Vessel Hespérides in 1997, Continental margin and deep basins: sedimentary record of paleoenvironmental and paleoclimatic variability paleoenvironmental and paleoclimatic variability. The research focuses on the study of the submarine fans of the Orinoco (area of ​​Venezuela) and the Magdalena (area of ​​Colombia) and will address the study of the recent sedimentary record (less than 5 million years) from the most shallow environments of the continental margin (300 meters deep) to the deepest environments such as the ocean basins to more than 5000 meters deep

MAYC-97_MAGDALENA Cruise (29HE19970402) carried out on the Research Vessel Hespérides in 1997, Continental margin and deep basins: sedimentary record of paleoenvironmental and paleoclimatic variability paleoenvironmental and paleoclimatic variability. The research focuses on the study of the submarine fans of the Orinoco (area of ​​Venezuela) and the Magdalena (area of ​​Colombia) and will address the study of the recent sedimentary record (less than 5 million years) from the most shallow environments of the continental margin (300 meters deep) to the deepest environments such as the ocean basins to more than 5000 meters deep

PRICO Cruise (29HE19970501) carried out on the Research Vessel Hespérides in 1997, The transition subduction - Transforming area on the northern edge of the Caribbean plate and its influence on the control of earthquakes. Implications for the understanding of other current plate boundaries, plate Scotia and Ancient; Gibraltar arc. The scientific objectives are focused on the study of the limits of tectonical plates present in the Caribbean (American Plate Limit - Caribbean Plate)

ZEE-1997 Cruise (29HE19970801) carried out on the Research Vessel Hespérides in 1997, ZEE cruise 1997. Plan for hydrographic and oceanographic Spanish Exclusive Economic Zone