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 data 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.
Estimating RSL changes in the Northern Bay of Cádiz (Spain) during the late Holocene
Caporizzo C.;Aucelli P. P. C.;Mattei G.;
2020-01-01
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 data 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
