Coastal barrier stratigraphy for Holocene high-resolution sea-level reconstruction.

ABSTRACT: The uncertainties surrounding present and future sea-level rise have revived the debate around sea-level changes through the deglaciation and mid- to late Holocene, from which arises a need for high-quality reconstructions of regional sea level. Here, we explore the stratigraphy of a sandy barrier to identify the best sea-level indicators and provide a new sea-level reconstruction for the central Portuguese coast over the past 6.5 ka. The selected indicators represent morphological features extracted from coastal barrier stratigraphy, beach berm and dune-beach contact. These features were mapped from high-resolution ground penetrating radar images of the subsurface and transformed into sea-level indicators through comparison with modern analogs and a chronology based on optically stimulate

SUBMITTER: Costas S 

PROVIDER: S-EPMC5144086 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature