Morphology and downslope sediment displacement in a deep-sea valley, the Valencia Valley (Northwestern Mediterranean)

O'Connell, S.; Alonso, B.; Kastens, K. A.; Maldonado, A.; Malinverno, A.; Nelson, C. H.; Palanques, A.; Ryan, W. B. F.

Abstract:

The Valencia Valley is a Quaternary, 200 km long deep-sea valley in the Valencia Trough, Western Mediterranean Sea. A swathmapping survey approximately mid-way along the valley length, where the floor has an average gradient of 1:250 (0.2??), shows valley walls that rise 200 to 350 m above the valley floor, with slopes of 2 to 18??. Sediment forming the walls is undergoing retrogressive, upslope-directed slumping with increasing bedding disruption along steeper walls. The valley exhibits a winding course with steep outer and gentler inner walls around bends, and bedforms on the valley floor. Lateral migration around bends is less than 5 km and the valley is deeply entrenched into Quaternary-bedded sediments. ?? 1985 Springer-Verlag New York Inc.

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Article

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70012973

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O'Connell, S.; Alonso, B.; Kastens, K. A.; Maldonado, A.; Malinverno, A.; Nelson, C. H.; Palanques, A.; Ryan, W. B. F.

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156

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English

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Geo-Marine Letters

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Morphology and downslope sediment displacement in a deep-sea valley, the Valencia Valley (Northwestern Mediterranean); 1985; Article; Journal; Geo-Marine Letters; O‘Connell, S.; Alonso, B.; Kastens, K. A.; Maldonado, A.; Malinverno, A.; Nelson, C. H.; Palanques, A.; Ryan, W. B. F.