BUSCADOR RECOLECTA

PALEOPAC Cruise (29HE19960309) carried out on the Research Vessel Hespérides in 1996, The PALEOPAC campaign was developed in the South Pacific in March 1996. During the campaign, kasten cores, gravity corers, maxicores, bathymetric profile with EK 500 and EM 12 probe and very high resolution profiles with BPS parametric probe were taken. The concrete areas of the study have been the southern Chilean margin around the Gulf of Penas, the "sea mounts" located in the basins off the Chilean continental margin and the Nazca Ridge. The intensive zone of work and sampling has been the Nazca Ridge. The purpose of the campaign has been to take cores in areas of the Pacific that allowed to study the paleoceanographic variability from the record of indicators of paleotemperatures and paleoproductivities accumulated in the sediment. The analysis of parameters such as the biogenic opaline, the content of organic matter and certain radioisotopes make it possible to reconstruct the records of paleoproductivity, paleotemperature and ocean circulation during periods of hundreds of kiloyears.