학술논문
Les variations holocènes du niveau marin mises en évidence par les caractères et la diagenèse des beachrocks : exemple de Damnoni (Crète) / Highlighting Holocene sea-level changes by an analysis of beachrock characteristics and diagenesis: example from Damnoni (Crete)
Document Type
article
Source
Géomorphologie : relief, processus, environnement 6(4):211-219
Subject
Language
French
ISSN
1266-5304
Abstract
Résumé L'étude de la diagenèse précoce des sédiments littoraux meubles conduisant à la formation de beachrock peut utilement compléter les informations obtenues grâce aux encoches et aux constructions organogènes pour la compréhension des variations de la ligne de rivage. À Damnoni (Crète méridionale), les encoches et les corniches à Vermets indiquent une surrection tectonique du littoral de 1,80 m depuis 2000 ans. La cimentation du beachrock confirme ce mouvement et révèle par ailleurs qu'il n'a pas été brutal, mais progressif, étalé sur une durée d'au moins plusieurs siècles.
Abstract The examination of early diagenesis in coastal sediments that have been lithified as beachrock can usefully complement information inferred from notches and bioconstructions for understanding sea-level changes. At Damnoni (southern Crete), notches and Vermetid benches indicate 1.8 m of surface uplift at the coast in the last 2000 years. Beachrock cementation confirms this movement and, moreover, reveals that it was not abrupt, but progressive, operating over at least several centuries.
Abstract The examination of early diagenesis in coastal sediments that have been lithified as beachrock can usefully complement information inferred from notches and bioconstructions for understanding sea-level changes. At Damnoni (southern Crete), notches and Vermetid benches indicate 1.8 m of surface uplift at the coast in the last 2000 years. Beachrock cementation confirms this movement and, moreover, reveals that it was not abrupt, but progressive, operating over at least several centuries.