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

G. I. Alsop (Corresponding Author), Shmuel Marco

Research output: Contribution to journalArticle

103 Citations (Scopus)

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. (C) 2011 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)433-457
Number of pages25
JournalJournal of Structural Geology
Volume33
Issue number4
Early online date19 Feb 2011
DOIs
Publication statusPublished - Apr 2011

Keywords

  • Slump
  • Folds
  • Earthquakes
  • Mass transport complexes
  • Gravity-driven deformation
  • Dead Sea Basin
  • Sheath folds
  • County Clare
  • Earthquake deformations
  • Flow perturbation
  • Ireland
  • Strain
  • Zones
  • Salt
  • Palaeoslope
  • Estimators

Cite this