The sedimentology and geometry of fine-grained tsunami deposits in onshore environments

Spiske, Michaela. (2020) The sedimentology and geometry of fine-grained tsunami deposits in onshore environments. In: Geological Records of Tsunamis and Other Extreme Waves. Amsterdam, pp. 213-238.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/77885/

Downloads: Statistics Overview


Sediments are archives that aid in the reconstruction of overwash processes. For onshore tsunami deposits, sedimentary structures provide information regarding the flow characteristics at a particular site. The spatial distribution of sediments allows for an estimation of the minimum inundation distance, and structures that document flow direction (e.g., cross-stratification, imbrication) may provide evidence of runup or backwash phases of individual tsunami waves. Multiple layers may indicate single waves of the tsunami wave train. Flow conditions (i.e., upper or lower flow regime) that prevail during the overwash process are represented by features such as antidunes and planar lamination. Transport modes (i.e., bed load or suspended load) and related modes of deposition and settling are revealed by structures, such as normal grading and mud caps. In general, tsunami deposits are highly variable in their appearance as they contain components from marine and terrestrial sources. Finally, as the geological record reaches beyond the limit of any historical documentation, sediments are fundamental archives for long-term risk assessment.
Faculties and Departments:05 Faculty of Science
05 Faculty of Science > Departement Umweltwissenschaften
UniBasel Contributors:Spiske, Michaela
Item Type:Book Section, refereed
Book Section Subtype:Further Contribution in a Book
Note:Publication type according to Uni Basel Research Database: Book item
Identification Number:
Last Modified:25 Jan 2021 11:11
Deposited On:25 Jan 2021 11:11

Repository Staff Only: item control page