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Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean
Date
2002-12-15
Author
Ediger, V
Velegrakis, AF
Evans, G
Metadata
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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 similar to55 km(2), 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 in 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. (C) 2002 Published by Elsevier Science B.V.
Subject Keywords
Deep-water sediment waves
,
Continental slope
,
Northeastern Mediterranean
,
Asia Minor Current
,
Submarine canyons
URI
https://hdl.handle.net/11511/67312
Journal
MARINE GEOLOGY
DOI
https://doi.org/10.1016/s0025-3227(02)00562-5
Collections
Graduate School of Marine Sciences, Article
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V. Ediger, A. Velegrakis, and G. Evans, “Upper slope sediment waves in the Cilician Basin, northeastern Mediterranean,”
MARINE GEOLOGY
, pp. 321–333, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67312.