Sea level rise and submarine mass failures on open continental margins

Smith, David E.; Harrison, Stephan; Jordan, Jason

doi:10.1016/j.quascirev.2013.10.012

Cited by 64 publications

(60 citation statements)

References 99 publications

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“…During the studied time period of ~56–30 ka, the lake level fluctuated between −330 and −180 m, in contrast to fluctuation between −440 and −370 m of the Holocene lake level (Bartov et al, ; Torfstein et al, ). The relatively high‐amplitude lake level fluctuation during the studied time period will cause high‐amplitude pressure variation in the slope areas that may reduce slope stability (Smith et al, ). Thus, we predict that earthquakes with M w > 5.5 or local seismic intensity (MM) > VI (section 5.2) recorded in the depocenter core initiated the meter thick slumps and chaotic deposits.…”

Section: Discussionsupporting

confidence: 91%

Interpreting Soft Sediment Deformation and Mass Transport Deposits as Seismites in the Dead Sea Depocenter

et al. 2017

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We have studied the history of earthquakes over the past 70 kyr by analyzing disturbed sedimentary layers around the margins of the Dead Sea. However, we know little about disturbances in the basin depocenter, where water depth is ~300 m, and accessible only by drilling. In this study, we compare disturbances from the Dead Sea depocenter, with the contemporaneous earthquake record (~56–30 ka) that was recovered on the western margin of the lake. This comparison allows us to discern the characteristics of disturbance in the different subaqueous environments and identify the source and sedimentary process of mass transport deposits. Our observations indicate that (i) the long disturbance sequences in the Dead Sea depocenter are composed of in situ deformation, slump, and chaotic deposits; (ii) earthquake‐triggered Kelvin‐Helmholtz Instability is a plausible mechanism for the in situ deformation in the lake center; (iii) the slump is slope area sourced; (iv) the unit of chaotic deposits is lakeshore sourced; and (v) earthquake‐triggered slope instability is a viable mechanism for the slump and chaotic deposits. We further suggest that long sequences of disturbance in seismically active lake depocenters can be used to infer earthquake clusters.

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Section: Discussionsupporting

confidence: 91%

Interpreting Soft Sediment Deformation and Mass Transport Deposits as Seismites in the Dead Sea Depocenter

et al. 2017

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“…We see the potential for similar approaches to investigate other debates about global sea-level change. These include MWP1B, ~11.3 ka BP, although it is not represented in the global GIA model used here, and a ~1 to 3 m sea-level jump around 8.2 ka BP (Hijma and Cohen, 2010;Lawrence et al, 2016;Smith et al, 2013;Tornqvist and Hijma, 2012).…”

Section: Can Near-field Records Constrain Models Of Global Eustatic Smentioning

confidence: 99%

Relative sea-level changes and crustal movements in Britain and Ireland since the Last Glacial Maximum

Shennan

Bradley

Edwards

2018

Quaternary Science Reviews

110

165

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“…However, during glacial terminations, bottom-water temperature can increase by as much as 2°C, as documented in the deep waters of the western Pacific (Siddall et al 2010). Indeed, a theoretical methane hydrate stability calculation (Sloan and Koh 2008), assuming a 2°C increase in bottom-water temperature, diffusive heat transport through sediments, and an average heat flow 60 mW/m 2 (Yamano et al 2014), indicates that changes in bottom-water temperatures can result in an upward shift of the gas hydrate O profile as a function of age based on tephrochronology and the LR04 stack (Lisiecki and Raymo 2005) before and after matching. The dataset from Bassinot et al (1994) is shown in black.…”

Section: Temperature and Gas Hydratesmentioning

confidence: 99%

Possible climate preconditioning on submarine landslides along a convergent margin, Nankai Trough (NE Pacific)

Kremer

Usman

Satoguchi

et al. 2017

Prog Earth Planet Sci

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Submarine landslides are major agents of sediment mass transfer from the shallow to deep sea. Due to their rapid emplacement and tsunamigenic potential, such landslides are significant geohazards for society and offand on-shore infrastructure. The relationship between climate change and the occurrence of submarine landslides is widely debated. However, there is a lack of continuous long-term submarine landslide records with which to comprehensively understand the relationship between climate-driven forces and submarine landslide occurrence. Here, using oxygen isotope stratigraphy in combination with tephrochronology, we date a 1 Myr continuous record of six landslide deposits (at 13.0-14.2, 323-339, 372-384, 394-413, 508-521, and 857-867 ka) recorded in a slope basin of the Nankai Trough subduction zone, off-shore Japan, which represents the major outcome of this study. The ages of the six landslides coincide mostly with interglacial periods. Thus, we propose that climate forcing might act as a preconditioning factor for slope instability in this active tectonic region.

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Sea level rise and submarine mass failures on open continental margins

Cited by 64 publications

References 99 publications

Interpreting Soft Sediment Deformation and Mass Transport Deposits as Seismites in the Dead Sea Depocenter

Interpreting Soft Sediment Deformation and Mass Transport Deposits as Seismites in the Dead Sea Depocenter

Relative sea-level changes and crustal movements in Britain and Ireland since the Last Glacial Maximum

Possible climate preconditioning on submarine landslides along a convergent margin, Nankai Trough (NE Pacific)

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