Catastrophic event recorded among Holocene eolianites (Sidi Salem Formation, SE Tunisia)

A high-energy deposit cuts through the early Holocene eolianites of the Sidi Salem Formation which forms a ridge along the southeastern coast of Tunisia. The sedimentary structures as well as the paleo-altitude and paleo-location of the outcrop state for a subaqueous deposition by an unusually large...

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Bibliographic Details
Published in:Sedimentary geology 2010-03, Vol.224 (1), p.38-48
Main Authors: Frébourg, Gregory, Hasler, Claude-Alain, Davaud, Eric
Format: Article
Language:English
Subjects:
Age
Catastrophic events
Coastal environments
Collapse
Deposition
Eolianite
Holocene
Mathematical analysis
Overwash
Ridges
Storm
Storms
Tsunamite
Tunisia
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Summary:A high-energy deposit cuts through the early Holocene eolianites of the Sidi Salem Formation which forms a ridge along the southeastern coast of Tunisia. The sedimentary structures as well as the paleo-altitude and paleo-location of the outcrop state for a subaqueous deposition by an unusually large catastrophic event. Regarding its age and the related uncertainties, it could be either an exceptional storm, or a landslide or impact triggered tsunami. The mega-tsunami of the 8000 BP collapse of the Valle del Bove valley (Etna Volcano) could be this event, for its matching age and calculated run-up height.
ISSN:0037-0738
1879-0968
DOI:10.1016/j.sedgeo.2009.12.006