While the role of shore-parallel transport is extensively documented, its contribution to source-to-sink and provenance studies is often overshadowed by tectonic variations, sediment influx, and sea-level change. To isolate the sedimentary contribution of shore-parallel transport, this study examines the central Levant continental margin (easternmost Mediterranean), where the other three factors are well constrained. New high-resolution multibeam and seismic reflection data collected in a dedicated cruise aboard the RV Bat Galim are used for analyzing current-indicating morphologies formed since the Last Glacial Maximum (LGM). Results show six different current indicators, which attest to the ongoing shore-parallel Levant Jet System (LJS) flow. Throughout the post-LGM transgression and coastal retreat, the LJS shifted landward to flow over the submerged shelf and upper slope. This shift, along with periodic/seasonal alterations in the flow intensity, regulated the sediment transport, distribution and erosion, along and across the margin, during the lowstand, transgression, and highstand conditions. This case study emphasizes the central role of shore-parallel currents in regulating the sedimentary budget. It provides a reference case for continental margins where the shore-parallel role is obscured by more dominant tectonic-eustatic-sedimentation factors.
|Journal||Continental Shelf Research|
|State||Published - 1 Aug 2021|
Bibliographical noteFunding Information:
The author thanks: the Israel Port Company for supporting this research, the captain and crew of the RV Bat Galim, Mor Kanari for his instrumental help in data acquisition, Thomai Anagnostudi and Guy Lang for their part in data analysis, Eyal Zioni for the dedicated support, Shirley Shaiak for editing the text, Zvi Ben-Avraham for long-lasting inspiration, Schlumberger-Petrel and IHS-Kingdom Suite for providing educational licenses, which enabled the seismic interpretation. The author thanks the editor and two anonymous reviewers for their constructive remarks.
© 2021 Elsevier Ltd
- Comet structures
- Continental margin
- Langmuir circulation
- Seafloor currents
- Sediment waves
- Shore-parallel transport
ASJC Scopus subject areas
- Aquatic Science