Estimating RSL changes in the Northern Bay of Cádiz (Spain) during the late Holocene

Claudia Caporizzo, Pietro Patrizio Ciro Aucelli, Ignacio Galán Ruffoni, Francisco Javier Gracia Prieto, Celia Martín Puertas, Gaia Mattei, Paolo Stocchi

Abstract

The Bay of Cádiz (SW Spain) is an example of long historical human occupation of a typical estuarine saltmarsh environment affected by notable historical changes that have conditioned the sedimentary evolution of emerged and submerged zones. This study aims to present new data regarding the RSL position during the late Holocene within the Northern bay of Cádiz. Bibliographic d ata coming from boreholes carried out in the study area were combined with the analysis of a new core. RSL positions, extracted from depositional sea level index points were calculated from saltmarshes and tidal deposits dated between 3.0 2.0 ky BP. Comparing these data with the new eustatic sea level curve of the Bay of Cádiz carried out in this research, we observed that, during the last 3.0 ky BP, the sector has been affected by prevailing subsidence ranging between 0.9 m and 4.3 m.

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IMEKO-TC19-MetroSea-2020-31.pdf

DOI

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IMEKO TC

TC19 - Environmental Measurements

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