GALINCLIMARCH-2 Cruise, RV Sarmiento de Gamboa

• Main Authors: Rey, Daniel, CSIC - Unidad de Tecnología Marina (UTM)
• Format: Dataset
• Language: unknown
• Published: 2012
• Subjects: Sarmiento; North Atlantic
• Online Access: http://hdl.handle.net/10261/232043; https://doi.org/10.20351/29SG20130514

GALINCLIMARCH-2 Cruise (29SG20120423) carried out on the Research Vessel Sarmiento de Gamboa in 2012 To study the climatic changes that have taken place in the last 50,000 years o o objection of the oceanographic campaign Galinclimarch. The sediments of the Galician Interior Basin realm are capable of recording the peculiar conditions of the last glacial‐interglacial dynamics transition into the current interglacial and their evolution into present day, as they are influenced by the Thermohaline Circulation (THC) and because their proximity to the important continental land‐mass of western Iberia. The knowledge of the rates and magnitudes of change of this system is critical to understand its climate dynamics, processes and feedbacks, and hence its role on a local to sub‐regional scale. The inference of these climatic mechanisms encrypted in the deep‐sea sedimentary record needs to constrain the spatial and temporal scales of the sedimentary processes involved, in particular the identification of source areas, pathways and transport, storage times and hydrodynamic conditions. To adequately assess these encrypted sedimentary archives it is instrumental to identify the sedimentary expression of the main processes and forcements involved and accurately determine the spatial and temporal scales, rates and magnitudes of the processes and feedbacks that generate these records. This proposal aims to carry out a high‐resolution reconstruction of the transport time,provenance, sediment fluxes, wave climate, bottom‐current variability and post‐depositional alteration in a number of surficial samples and cores from the Galician Interior Basin. This project will provide a first insight into the relation between the last North Atlantic climate oscillation and the local regional components including abrupt climate changes (i.e. H events) and local events since the end of the last glacial period from a paleoclimatic proxies perspective. We will use a twofold approach by first constraining the current sedimentary conditions ...