Articles | Volume 22, issue 12
https://doi.org/10.5194/nhess-22-3973-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-22-3973-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Dec 2022
Research article |
| 12 Dec 2022
| 12 Dec 2022
How volcanic stratigraphy constrains headscarp collapse scenarios: the Samperre cliff case study (Martinique island, Lesser Antilles)
BRGM, 45060 Orléans, France
Yoann Legendre
BRGM, 45060 Orléans, France
Aude Nachbaur
BRGM Martinique, 97200 Fort-de-France, Martinique
Thomas J. B. Dewez
BRGM, 45060 Orléans, France
Yannick Thiery
BRGM, 45060 Orléans, France
Clara Levy
BRGM, 45060 Orléans, France
Benoit Vittecoq
BRGM Martinique, 97200 Fort-de-France, Martinique
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Short summary
Volcanic edifices result from successive construction and dismantling phases. Thus, the geological units forming volcanoes display complex geometries. We show that such geometries can be reconstructed thanks to aerial views, topographic surveys and photogrammetric models. In our case study of the Samperre cliff (Martinique, Lesser Antilles), it allows us to link destabilizations from a rocky cliff to the existence of a filled paleo-valley and estimate a potentially unstable volume.
Volcanic edifices result from successive construction and dismantling phases. Thus, the...
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