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Late-Pleistocene evolution of the continental shelf of central Israel, a case study from Hadera

Late-Pleistocene evolution of the continental shelf of central Israel, a case study from Hadera
Late-Pleistocene evolution of the continental shelf of central Israel, a case study from Hadera
Sea-level fluctuations are a dominant mechanism that control coastal environmental changes through time. This is especially the case for the successive regressions and transgressions over the last interglacial cycle, which have shaped the deposition, preservation and erosion patterns of unconsolidated sediments currently submerged on continental shelves. The current study focuses on creating an integrated marine and terrestrial geophysical and litho-stratigraphic framework of the coastal zone of Hadera, north-central Israel. This research presents a case study, investigating the changing sedimentological units in the study area. Analysis suggest these represent various coastal environments and were deposited during times of lower than present sea level and during the later stages of the Holocene transgression.

A multi-disciplinary approach was applied by compiling existing elevation raster grids, bathymetric charts, one hundred lithological borehole data-sets, and a 110 km-long sub-bottom geophysical survey. Based on seismic stratigraphic analysis, observed geometries, and reflective appearances, six bounding surfaces and seven seismic units were identified and characterized. These seismic units have been correlated with the available borehole data to produce a chronologically constrained lithostratigraphy for the area. This approach allowed us to propose a relationship between the lithological units and sea-level change and thus enable the reconstruction of Hadera coastal evolution over the last ~ 100 ka. This reconstruction suggests that the stratigraphy is dominated by lowstand aeolian and fluvial terrestrial environments, subsequently transgressed during the Holocene. The results of this study provide a valuable framework for future national strategic shallow-water infrastructure construction and also for the possible locations of past human settlements in relation to coastal evolution through time.
Shallow geophysics, Continental shelf, Late Pleistocene–Holocene sequence, Israel, Coastal and marine geology
0169-555X
200-211
Shtienberg, Gilad
e6fe71a5-00f1-4349-a0aa-75cbec5f60a3
Dix, Justin
efbb0b6e-7dfd-47e1-ae96-92412bd45628
Waldmann, Nicolas
e0677af4-c46b-4de1-9339-83202c101d52
Makovsky, Yizhaq
4efa36da-fbf6-4393-92ef-d568f00e69f8
Golan, Arik
b7d4b72c-5008-4856-9717-2280131d673a
Sivan, Dorit
4a0c96d8-ac68-47c5-999d-bb7053e5f709
Shtienberg, Gilad
e6fe71a5-00f1-4349-a0aa-75cbec5f60a3
Dix, Justin
efbb0b6e-7dfd-47e1-ae96-92412bd45628
Waldmann, Nicolas
e0677af4-c46b-4de1-9339-83202c101d52
Makovsky, Yizhaq
4efa36da-fbf6-4393-92ef-d568f00e69f8
Golan, Arik
b7d4b72c-5008-4856-9717-2280131d673a
Sivan, Dorit
4a0c96d8-ac68-47c5-999d-bb7053e5f709

Shtienberg, Gilad, Dix, Justin, Waldmann, Nicolas, Makovsky, Yizhaq, Golan, Arik and Sivan, Dorit (2016) Late-Pleistocene evolution of the continental shelf of central Israel, a case study from Hadera. Geomorphology, 261, 200-211. (doi:10.1016/j.geomorph.2016.03.008).

Record type: Article

Abstract

Sea-level fluctuations are a dominant mechanism that control coastal environmental changes through time. This is especially the case for the successive regressions and transgressions over the last interglacial cycle, which have shaped the deposition, preservation and erosion patterns of unconsolidated sediments currently submerged on continental shelves. The current study focuses on creating an integrated marine and terrestrial geophysical and litho-stratigraphic framework of the coastal zone of Hadera, north-central Israel. This research presents a case study, investigating the changing sedimentological units in the study area. Analysis suggest these represent various coastal environments and were deposited during times of lower than present sea level and during the later stages of the Holocene transgression.

A multi-disciplinary approach was applied by compiling existing elevation raster grids, bathymetric charts, one hundred lithological borehole data-sets, and a 110 km-long sub-bottom geophysical survey. Based on seismic stratigraphic analysis, observed geometries, and reflective appearances, six bounding surfaces and seven seismic units were identified and characterized. These seismic units have been correlated with the available borehole data to produce a chronologically constrained lithostratigraphy for the area. This approach allowed us to propose a relationship between the lithological units and sea-level change and thus enable the reconstruction of Hadera coastal evolution over the last ~ 100 ka. This reconstruction suggests that the stratigraphy is dominated by lowstand aeolian and fluvial terrestrial environments, subsequently transgressed during the Holocene. The results of this study provide a valuable framework for future national strategic shallow-water infrastructure construction and also for the possible locations of past human settlements in relation to coastal evolution through time.

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More information

Accepted/In Press date: 10 March 2016
Published date: 15 May 2016
Keywords: Shallow geophysics, Continental shelf, Late Pleistocene–Holocene sequence, Israel, Coastal and marine geology
Organisations: Geology & Geophysics

Identifiers

Local EPrints ID: 396548
URI: http://eprints.soton.ac.uk/id/eprint/396548
ISSN: 0169-555X
PURE UUID: 99d39a4e-2d99-4c85-a440-d71276115d0d
ORCID for Justin Dix: ORCID iD orcid.org/0000-0003-2905-5403

Catalogue record

Date deposited: 07 Jun 2016 14:08
Last modified: 15 Mar 2024 02:46

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Contributors

Author: Gilad Shtienberg
Author: Justin Dix ORCID iD
Author: Nicolas Waldmann
Author: Yizhaq Makovsky
Author: Arik Golan
Author: Dorit Sivan

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