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EnglishMultibeam bathymetric data revealed the occurrence of atrain 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 the 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 steporigin of these bedforms. Preliminary numerical modeling suggest 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.
LO IACONO, C., Cartigny, M., Zizzo, E., Agate, M., & Sulli, A. (2017). Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). In J. Guillén (a cura di), Atlas of Bedforms in the Western Mediterranean (pp. 235-240). Springer International Publishing Switzerland.
| Data di pubblicazione: | 2017 | |
| Titolo: | Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea) | |
| Autori: | ||
| Citazione: | LO IACONO, C., Cartigny, M., Zizzo, E., Agate, M., & Sulli, A. (2017). Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). In J. Guillén (a cura di), Atlas of Bedforms in the Western Mediterranean (pp. 235-240). Springer International Publishing Switzerland. | |
| Abstract: | Multibeam bathymetric data revealed the occurrence of atrain 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 the 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 steporigin of these bedforms. Preliminary numerical modeling suggest 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. | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/978-3-319-33940-5_36 | |
| Settore Scientifico Disciplinare: | Settore GEO/02 - Geologia Stratigrafica E Sedimentologica | |
| Appare nelle tipologie: | 2.01 Capitolo o Saggio |
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