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

G. I. Alsop; Shmuel Marco

doi:10.1016/j.jsg.2011.02.003

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

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

Research output: Contribution to journal › Article › peer-review

140 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 language	English
Pages (from-to)	433-457
Number of pages	25
Journal	Journal of Structural Geology
Volume	33
Issue number	4
Early online date	19 Feb 2011
DOIs	https://doi.org/10.1016/j.jsg.2011.02.003
Publication status	Published - 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

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@article{b3357f3e67984b749b543449c5c249ea,

title = "Soft-sediment deformation within seismogenic slumps of the Dead Sea Basin",

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.",

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",

author = "Alsop, {G. I.} and Shmuel Marco",

note = "We thank Mr. John Levy, together with the Carnegie Trust and the Royal Society of Edinburgh for travel grants to IA, and the Israel Science Foundation for grant 1539/08 to SM. We thank Xavier Fort for discussion and permission to use one of his experiments, together with the referees and editor, Nigel Woodcock and Bob Holdsworth, for careful and constructive reviews. SM would like to acknowledge the Department of Earth Sciences at Durham University for hosting him and facilitating the completion of this paper. ",

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AU - Alsop, G. I.

AU - Marco, Shmuel

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PY - 2011/4

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N2 - 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.

AB - 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.

KW - Slump

KW - Folds

KW - Earthquakes

KW - Mass transport complexes

KW - Gravity-driven deformation

KW - Dead Sea Basin

KW - Sheath folds

KW - County Clare

KW - Earthquake deformations

KW - Flow perturbation

KW - Ireland

KW - Strain

KW - Zones

KW - Salt

KW - Palaeoslope

KW - Estimators

U2 - 10.1016/j.jsg.2011.02.003

DO - 10.1016/j.jsg.2011.02.003

M3 - Article

VL - 33

SP - 433

EP - 457

JO - Journal of Structural Geology

JF - Journal of Structural Geology

SN - 0191-8141

IS - 4

ER -

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

Abstract

Keywords

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