CADISED – Sediment depocentres in the northern Gulf of Cadiz


Locally confined sediment depocenters on the northern Gulf of Cadiz shelf: formation history, environmental changes, and budget calculation.

Local sedimentary depocenters on clastic continental shelves contain highly valuable information concerning their history of development, the dynamics of component-specific sediment distribution in the shelf system, and the variability of climate-related parameters such as sea level and continental sediment supply. The existing seismo-acoustic profiles from the northern Gulf of Cadiz shelf system show a number of well-defined transgressive and Holocene sediment bodies. Such deposits are highly suited for palaeo-environmental reconstructions. We thus want to get benefit from these depocenters, and the three superordinate scientific targets are:

- To develop a comprehensive sedimentary-stratigraphic model on the origin of confined shelf deposits;

- To broaden the poor knowledge on sedimentary depocenters with special emphasis on their development dynamics and to calculate, as the most significant aspect, a marginal-marine sediment budget along defined time slices for late-glacial, deglacial and Holocene times.

- To use Holocene highstand muddy depocenters as high-resolution palaeo-environmental archives with the aim to reconstruct past climatic variability at high resolution in a regional (and Atlantic-wide) context and to quantify the influence of the involved forces (oceanography, morphology, material input, neotectonics).


Faculty of Geosciences, University of Bremen, Germany

Instituto Andaluz de Ciencias de la Tierra, Granada, Spain

Instituto Geológico y Minero de España/Spanish Geological Survey, Spain

Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Faro, Portugal