Work

Characterization of barchanoid dune systems on the Cap Ferret spit (Aquitaine)

Year: 2025

Type: book-chapter

Abstract: The Cap Ferret spit (Atlantic coast, France) is defined by barchanoid dune systems formed by a large input of sand remobilized by aeolian dynamics. GPR investigations have revealed distinct internal architectures within the barchanoid dunes, mainly characterized by eastward-dipping reflectors and complex structures illustrating sand remobilization. These structures highlight a progressive evolution in dune morphology, from west to east, i) low topographic and interconnected dunes without specific morphology (proto-barchans), ii) interconnected dunes with crescent-shaped morphology (barchanoid ridge) and iii) isolated dunes with a well-defined crescent-shaped morphology (isolated barchans). This study investigates these distinct stages of development, linking internal stratigraphy and geomorphological evolution, and provides insights on the dynamics of coastal barchanoid dune formation and migration.

DOI: 10.70665/aemk1901

Authors: Clélia Billières, Julie Billy, Raphaël Bourillot, Hugues Féniès

Institutions: Environnements et Paléoenvironnements Océaniques et Continentaux, Bureau de Recherches Géologiques et Minières

Language: English

Topic: Aeolian processes and effects

Subfield: Earth-Surface Processes

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Funders: Centre National de la Recherche Scientifique, Bureau de Recherches Géologiques et Minières

Award: G453931310

OpenAlex ID: W4408830200

FWCI:

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