Looking for clues to paleoceanographic imprints: A diagnosis of the Gulf of Cadiz contourite depositional systems
Hernández-Molina, F.J.; Llave, E.; Somoza, L.; Fernández-Puga, M.C.; Maestro, A.; León, R.; Medialdea, T.; Barnolas, A.; Garcia, M.; Díaz del Río, V.; Fernández-Salas, L.M.; Vázquez, J.T.; Lobo, F.; Alveirinho-Dias, J.M.; Rodero, J.; Gardner, J. (2003). Looking for clues to paleoceanographic imprints: A diagnosis of the Gulf of Cadiz contourite depositional systems. Geology (Boulder Colo.) 31(1): 19. https://dx.doi.org/10.1130/0091-7613(2003)031<0019:lfctpi>2.0.co;2
In: Geology. Geological Society of America: Boulder. ISSN 0091-7613; e-ISSN 1943-2682, more
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| Keyword |
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| Author keywords |
contourite depositional system; middle slope; drifts; channels; diapirs |
| Authors | | Top | Datasets |
- Hernández-Molina, F.J.
- Llave, E.
- Somoza, L.
- Fernández-Puga, M.C.
- Maestro, A.
- León, R.
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- Medialdea, T.
- Barnolas, A.
- Garcia, M.
- Díaz del Río, V.
- Fernández-Salas, L.M.
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- Vázquez, J.T.
- Lobo, F.
- Alveirinho-Dias, J.M.
- Rodero, J.
- Gardner, J.
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| Abstract |
A new morphosedimentary map of the Gulf of Cadiz is presented, showing the contourite depositional system on the gulf's middle slope. This map is constructed from a broad database provided by the Spanish Research Council and the U.S. Naval Research Laboratory. Our map shows that this contourite depositional system comprises five morphosedimentary sectors: (1) proximal scour and sand ribbons; (2) overflow sedimentary lobe; (3) channels and ridges; (4) contourite deposition; and (5) submarine canyons. The Gulf of Cadiz contourite depositional system stems directly from the interaction between Mediterranean Outflow Water and the seafloor; its morphosedimentary sectors are clearly related to the systematic deceleration of the Mediterranean Outflow Water's westward branches, bathymetric stress on the margin, and the Coriolis force. The slope's depositional system can be considered as a mixed contourite and turbidite system, i.e., a detached combined drift and fan. |
| Datasets (2) |
- Flanders Marine Institute; Renard Centre of Marine Geology - Ugent (2018). Global contourite distribution database, version 2. Available online at https://www.marineregions.org, more
- Flanders Marine Institute; Renard Centre of Marine Geology - Ugent (2019). Global contourite distribution database, version 3. Available online at https://www.marineregions.org, more
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