Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea)
Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea)
Multibeam bathymetric data revealed the occurrence of a train of bedforms along a gully system in the Gulf of Palermo, southern Tyrrhenian Sea. The observed gullies, located in the westernmost sector of the Gulf of Palermo, incise the outer shelf at a depth of 120 m and converge at the Zafferano Canyon, connecting to the Palermo Basin at a depth of 1300 m. Bedforms develop along these gullies and along the thalweg of the canyon, displaying an average wavelength of 200 m, with maximum values of 340 m. Their gully floor location combined with their wave length, upslope asymmetry and crescent shape point to a possible cyclic step origin of these bedforms. Preliminary numerical modelling suggests that, assuming that these bedforms were formed by cyclic steps in turbidity currents, these flows might have been few meters thick and have had velocities in the range of 0.2–1.5 m/s.
235-240
Lo Iacono, Claudio
2ec2b5f4-a134-462b-b8ba-f7bd757040f5
Cartigny, Matthieu
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Zizzo, Elisabetta
7bb27179-44ff-42c5-a9d0-ec3eec846e69
Agate, Mauro
6a90cc19-8861-4029-a954-31894ac0488c
Sulli, Attilio
0331524d-48a8-43b2-ad12-bd993d611e26
Chiocci, Francesco Latino
1 January 2017
Lo Iacono, Claudio
2ec2b5f4-a134-462b-b8ba-f7bd757040f5
Cartigny, Matthieu
bda1b79b-7e11-4790-8238-b86d80a88bb3
Zizzo, Elisabetta
7bb27179-44ff-42c5-a9d0-ec3eec846e69
Agate, Mauro
6a90cc19-8861-4029-a954-31894ac0488c
Sulli, Attilio
0331524d-48a8-43b2-ad12-bd993d611e26
Chiocci, Francesco Latino
Lo Iacono, Claudio, Cartigny, Matthieu, Zizzo, Elisabetta, Agate, Mauro and Sulli, Attilio
(2017)
Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea).
In,
Guillen, Jorge, Acosta, Juan, Chiocci, Francesco Latino and Palanques, Albert
(eds.)
Atlas of Bedforms in the Western Mediterranean.
Cham, Switzerland.
Springer Cham, .
(doi:10.1007/978-3-319-33940-5_36).
Record type:
Book Section
Abstract
Multibeam bathymetric data revealed the occurrence of a train of bedforms along a gully system in the Gulf of Palermo, southern Tyrrhenian Sea. The observed gullies, located in the westernmost sector of the Gulf of Palermo, incise the outer shelf at a depth of 120 m and converge at the Zafferano Canyon, connecting to the Palermo Basin at a depth of 1300 m. Bedforms develop along these gullies and along the thalweg of the canyon, displaying an average wavelength of 200 m, with maximum values of 340 m. Their gully floor location combined with their wave length, upslope asymmetry and crescent shape point to a possible cyclic step origin of these bedforms. Preliminary numerical modelling suggests that, assuming that these bedforms were formed by cyclic steps in turbidity currents, these flows might have been few meters thick and have had velocities in the range of 0.2–1.5 m/s.
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More information
e-pub ahead of print date: 24 September 2016
Published date: 1 January 2017
Organisations:
Marine Geoscience
Identifiers
Local EPrints ID: 407596
URI: http://eprints.soton.ac.uk/id/eprint/407596
PURE UUID: ec22dd57-4b40-4903-8d29-c5ebe8730452
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Date deposited: 16 Apr 2017 16:59
Last modified: 15 Mar 2024 13:03
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Contributors
Author:
Claudio Lo Iacono
Author:
Matthieu Cartigny
Author:
Elisabetta Zizzo
Author:
Mauro Agate
Author:
Attilio Sulli
Editor:
Jorge Guillen
Editor:
Juan Acosta
Editor:
Francesco Latino Chiocci
Editor:
Albert Palanques
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