FN Archimer Export Format
PT J
TI Assessment of Submarine Landslide Volume
BT 
AF Falk Sager, Thore
   Urlaub, Morelia
   Berndt, Christian
AS 1:1;2:1;3:1;
FF 1:;2:;3:;
C1 GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany
C2 IFM GEOMAR, GERMANY
IN DOAJ
TC 0
UR https://archimer.ifremer.fr/doc/00849/96099/104196.pdf
   https://archimer.ifremer.fr/doc/00849/96099/104197.docx
LA English
DT Article
CR PRISME
BO L'Atalante
DE ;volume assessment;pre-failure seafloor reconstruction;landslide volume;emplacement mechanism
AB Submarine landslides pose major geohazards as they can destroy seafloor infrastructure such as communication cables and cause tsunamis. The volume of material displaced with the landslide is one factor that determines its hazard and is typically estimated using bathymetric and/or seismic datasets. Here, we review methods to determine the initial failed volume based on a well-constrained case study, the Ana Slide, a small slope failure in the Eivissa Channel off the eastern Iberian Peninsula. We find that not only the availability and quality of datasets but also the emplacement mechanism determines the quality of the volume estimation. In general, the volume estimation based on comparison of modern and reconstructed pre-failure seafloor topographies yields conservative, yet robust volumes for the amount of material that was mobilized. In contrast, volume estimated from seismic data may be prone to overestimation if no detailed constraints on the nature of the chaotic, transparent, or disrupted seismic facies commonly used to identify landslide material are available. 
PY 2023
PD AUG
SO Under Review at Geo-Marine Letters.
PU Research Square Platform LLC
DI 10.21203/rs.3.rs-3205387/v1
ID 96099
ER

EF