Soft-sediment deformation within seismogenic slumps of the Dead Sea Basin

G. I. Alsop*, Shmuel Marco

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

159 Scopus citations

Abstract

The Late Pleistocene Lisan Formation preserved next to the Dead Sea provides exceptional 3-D exposures of folds and faults generated during soft-sediment slumping and deformation. It is possible to generate a range of four different scenarios associated with overprinting in a single slump event. The progressive evolution of slump systems may be broadly categorised into initiation, translation, cessation, relaxation and compaction phases. Thrust packages typically define piggyback sequences during slump translation, with back-steepening of imbricate faults leading to collapse of folds back up the regional palaeoslope. Detailed evaluation of slumped horizons may also permit structures to be traced across apparently separate and distinct slumped units. The recognition that slumps may be reworked by younger seismically-triggered events suggests that in some cases the seismic recurrence interval may be shorter than previously anticipated.

Original languageEnglish
Pages (from-to)433-457
Number of pages25
JournalJournal of Structural Geology
Volume33
Issue number4
DOIs
StatePublished - Apr 2011

Funding

FundersFunder number
Royal Society of Edinburgh
Carnegie Dunfermline Trust
Israel Science Foundation1539/08

    Keywords

    • Dead Sea Basin
    • Earthquakes
    • Folds
    • Gravity-driven deformation
    • Mass transport complexes
    • Slump

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