Structural implications of strain localization towards a continental transform fault: The example of the shift between the Levant margin and the Dead Sea Fault plate boundary

Lang, Guy; Lazar, Michael; Schattner, Uri

doi:10.1016/j.marpetgeo.2017.10.009

Cited by 10 publications

(11 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unit 1 (Pliocene) thickens southward expressing the early development of the NDSF and thickens within the MSC canyons. Unit 2 (Gelasian) continues the same trend and also thickens offshore Mount Carmel, indicating local sediment supply possibly due to the uplift and erosion of Mount Carmel (Lang et al, 2018; Steinberg et al, 2011). Units 3 and 4 indicate a change in the pattern of deposition to nearshore accumulation offshore Israel.…”

Section: Resultsmentioning

confidence: 90%

When Two Salt Tectonics Systems Meet: Gliding Downslope the Levant Margin and Salt Out‐Squeezing From Under the Nile Delta

Zeev

Gvirtzman

2020

Tectonics

View full text Add to dashboard Cite

At present, salt tectonics in the Levant Basin comprises extension along the continental slope and folding and thrusting in the deep basin. However, here we show that the shape, the age, and the amplitude of deformation in the extensional and contractional domains do not fit the paradigm of "updip extension and downdip contraction." Deep basin shortening is not parallel to continental margin extension; it is younger and stronger. We propose that while extension of the Levant continental slope is an expression of basinward gliding, the deep basin shortening belongs to the circum-Nile deformation belt (CNDB) propelled by out-squeezing of salt from under the Nile delta. However, despite the independent driving forces, the two deformation systems seem to affect each other. In the southern part of the basin where the two systems meet, the NW gliding of the continental slope is restrained by the NE motion of the CNDB and vice versa. Interestingly, the beginning of folding along the CNDB (~2 Ma) coincides with the establishment of a continental shelf offshore Israel. We thus propose that these two apparently independent phenomena express maturity of the Nile delta that had reached a size and shape sufficient to trigger salt out-squeezing and to form a continuous continental shelf from the Nile to Israel. This continuity allowed shelf alongshore sediment transport that further propagated the Israeli shelf northward and westward. A slope-parallel normal fault system has been recognized offshore Israel in the late 1970s (

show abstract

Section: Resultsmentioning

confidence: 90%

When Two Salt Tectonics Systems Meet: Gliding Downslope the Levant Margin and Salt Out‐Squeezing From Under the Nile Delta

Zeev

Gvirtzman

2020

Tectonics

View full text Add to dashboard Cite

show abstract

“…The chronology of the studied interval is well constrained based on the framework presented by previous studies (e.g. Cartwright and Jackson 2008;Eruteya et al, 2015;Schattner et al, 2017;Lang et al, 2018). The northeastward decrease in sediment thickness and positioning of the submarine channels indicate that the main source of sediments is to the southwest from the Nile delta.…”

Section: Accepted Manuscriptmentioning

confidence: 83%

Seismic geomorphology of submarine channel-belt complexes in the Pliocene of the Levant Basin, offshore central Israel

et al. 2018

View full text Add to dashboard Cite

In this study, analyses of a high-resolution, three-dimensional seismic reflection dataset and well-log data were combined to characterise a distinct Pliocene interval in the Levant Basin offshore central Israel. This succession is characterised by moderate to high-amplitude, discontinuous to continuous seismic reflections between a mass transport deposit above and an undeformed basin series below. The studied interval contains two separate channelised subunits. Morphologically, the channels trend in a north to northwest direction, are incised <50 m, are ~50 m to 350 m wide and increase in number from base to top. A vertical variation in channel morphology style and stratigraphic organization is identified. The lower part of each subunit is dominated by coarser grained, narrow V-shaped channels (average width <120 m and low sinuosity, <1.06). In contrast, the upper part of each subunit is predominantly finegrained and U-shaped with relatively wide channels (average width >230 m and higher sinuosity, >1.1). The mechanisms that control the interplay between sedimentary processes and channel evolution show a cyclic pattern. Due to the cyclic occurrence of different channel types and the estimated age of the studied interval, formation and evolutionary processes of the submarine channels in the study area are likely to be controlled by relative sea level fluctuations and increased Nile River sediment supply, which is associated with rapid uplift of the Ethiopian plateau and increased African Monsoon rainfall during the Pliocene.

show abstract

“…These anticlines are well known in the basin and have been described by e.g. Gardosh and Druckman (2006), Gvirtzman and Steinberg (2012) and Lang, Lazar, and Schattner (2018). In this part of the Levant basin, the anticlines have a maximum length of 16 km and width of ca.…”

Section: Seismic Datamentioning

confidence: 86%

Evidence of sea level drawdown at the end of the Messinian salinity crisis and seismic investigation of the Nahr Menashe unit in the northern Levant Basin, offshore Lebanon

2019

View full text Add to dashboard Cite

Several important aspects of the Messinian salinity crisis (MSC) are still subject to controversy and debate after more than 40 years of studies. Recent work from the eastern Mediterranean have provided a renewed stratigraphic framework for the basin that is inconsistent with previous interpretation studies in the area. This study presents a description of the evolution of the depositional environment in the northern Levant Basin in a time interval surrounding the end of the famous event, from Late Messinian to the Pliocene. Through seismic mapping, we have identified a sediment package overlying the intra‐Messinian truncation surface (IMTS). This package is interpreted as an axial fluvial system running along the Levant Margin in stage 3 of the salinity crisis, likely composed of redeposited evaporites and clastic material. The system was fed primarily from a large fan system building out from the basin margin during a time of sea‐level low stand following a major erosional event, and presumably also from similar systems along the Latakia Ridge and Syria. Our interpretation also lends weight to the theory of a subaerial origin for the truncation surface after a catastrophic desiccation event succeeding the deposition of the halite‐dominated Messinian evaporite succession, based on differences in maximum erosional depth throughout the basin. After the deposition of the post‐IMTS package, deep marine settings were restored in the basin, and hemipelagic sediments from the Nile Delta and the Levant Margin have dominated the sediment deposition since.

show abstract

Structural implications of strain localization towards a continental transform fault: The example of the shift between the Levant margin and the Dead Sea Fault plate boundary

Cited by 10 publications

References 79 publications

When Two Salt Tectonics Systems Meet: Gliding Downslope the Levant Margin and Salt Out‐Squeezing From Under the Nile Delta

When Two Salt Tectonics Systems Meet: Gliding Downslope the Levant Margin and Salt Out‐Squeezing From Under the Nile Delta

Seismic geomorphology of submarine channel-belt complexes in the Pliocene of the Levant Basin, offshore central Israel

Evidence of sea level drawdown at the end of the Messinian salinity crisis and seismic investigation of the Nahr Menashe unit in the northern Levant Basin, offshore Lebanon

Contact Info

Product

Resources

About