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Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean

Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean
Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean
Large sediment waves have been observed within the upper slope deposits of the Cilician Basin (northeastern Mediterranean), at the interfluve between two submarine canyons present offshore of the Mersin Shelf. There are several generations of sediment waves stacked within the sedimentary sequence, with the most recent bedforms found on the seabed in an area consisting of fine-grained sediments. The surficial sediment wave field, estimated to cover an area of ~55 km2, is found at water depths between 250 and 310 m. The buried sediment wave fields have similar dimensions, but they are located further downslope. Wave dimensions increase with water depth and depth in the sedimentary sequence. The largest bedforms reach 40 m in height and 1.8 km in length. Most waves appear to have been migrating upslope, i.e. towards the north/northeast, and this migration direction is mostly consistent throughout the sedimentary sequence. This consistency indicates similar mechanisms of formation and maintenance over a considerable time interval. The morphology and migration pattern of the observed bedforms suggests that sedimentation in the Cilician Basin during wave formation has been controlled by near-bed flows resembling those generated by the present Asia Minor Current, although these flows may have been stronger in the past than they are at present
deep-water sediment waves, submarine canyons, continental slope, northeastern Mediterranean, Asia Minor Current
0025-3227
321-333
Ediger, V.
2568e893-fb95-409e-8bbc-38fda79968b3
Velegrakis, A.F.
362f903e-7e0a-4a47-a98d-076586d6ad42
Evans, G.
e5f4d450-de59-4812-88d2-31033b6f5cce
Ediger, V.
2568e893-fb95-409e-8bbc-38fda79968b3
Velegrakis, A.F.
362f903e-7e0a-4a47-a98d-076586d6ad42
Evans, G.
e5f4d450-de59-4812-88d2-31033b6f5cce

Ediger, V., Velegrakis, A.F. and Evans, G. (2002) Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean. Marine Geology, 192 (1-3), 321-333. (doi:10.1016/S0025-3227(02)00562-5).

Record type: Article

Abstract

Large sediment waves have been observed within the upper slope deposits of the Cilician Basin (northeastern Mediterranean), at the interfluve between two submarine canyons present offshore of the Mersin Shelf. There are several generations of sediment waves stacked within the sedimentary sequence, with the most recent bedforms found on the seabed in an area consisting of fine-grained sediments. The surficial sediment wave field, estimated to cover an area of ~55 km2, is found at water depths between 250 and 310 m. The buried sediment wave fields have similar dimensions, but they are located further downslope. Wave dimensions increase with water depth and depth in the sedimentary sequence. The largest bedforms reach 40 m in height and 1.8 km in length. Most waves appear to have been migrating upslope, i.e. towards the north/northeast, and this migration direction is mostly consistent throughout the sedimentary sequence. This consistency indicates similar mechanisms of formation and maintenance over a considerable time interval. The morphology and migration pattern of the observed bedforms suggests that sedimentation in the Cilician Basin during wave formation has been controlled by near-bed flows resembling those generated by the present Asia Minor Current, although these flows may have been stronger in the past than they are at present

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More information

Published date: 2002
Keywords: deep-water sediment waves, submarine canyons, continental slope, northeastern Mediterranean, Asia Minor Current

Identifiers

Local EPrints ID: 2209
URI: http://eprints.soton.ac.uk/id/eprint/2209
ISSN: 0025-3227
PURE UUID: b8b0e007-cef0-41fb-adc8-4e1108667642

Catalogue record

Date deposited: 20 May 2004
Last modified: 15 Jul 2019 19:39

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Contributors

Author: V. Ediger
Author: A.F. Velegrakis
Author: G. Evans

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