Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea)

Risultato della ricerca: Chapter

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.
Lingua originaleEnglish
Titolo della pubblicazione ospiteAtlas of Bedforms in the Western Mediterranean
Pagine235-240
Numero di pagine6
Stato di pubblicazionePublished - 2017

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gully
canyon
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asymmetry
sea
gulf
basin
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Zizzo, E., Agate, M., Sulli, A., & Lo Iacono, C. (2017). Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). In Atlas of Bedforms in the Western Mediterranean (pagg. 235-240)

Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). / Zizzo, Elisabetta; Agate, Mauro; Sulli, Attilio; Lo Iacono, Claudio.

Atlas of Bedforms in the Western Mediterranean. 2017. pag. 235-240.

Risultato della ricerca: Chapter

Zizzo, E, Agate, M, Sulli, A & Lo Iacono, C 2017, Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). in Atlas of Bedforms in the Western Mediterranean. pagg. 235-240.
Zizzo E, Agate M, Sulli A, Lo Iacono C. Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). In Atlas of Bedforms in the Western Mediterranean. 2017. pag. 235-240
Zizzo, Elisabetta ; Agate, Mauro ; Sulli, Attilio ; Lo Iacono, Claudio. / Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea). Atlas of Bedforms in the Western Mediterranean. 2017. pagg. 235-240
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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.",
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T1 - Potential Cyclic Steps in a Gully System of the Gulf of Palermo (Southern Tyrrhenian Sea)

AU - Zizzo, Elisabetta

AU - Agate, Mauro

AU - Sulli, Attilio

AU - Lo Iacono, Claudio

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Cyclic steps

KW - Gulf of Palermo

KW - Gullies

KW - Submarine Canyons

KW - Turbidity Currents

KW - Tyrrhenian Sea

UR - http://hdl.handle.net/10447/226695

M3 - Chapter

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BT - Atlas of Bedforms in the Western Mediterranean

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