Facies sequences in large-volume debris- and turbidity-flow deposits from the Pyrenees (Cretaceous; France,Spain) |
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| Authors: | Pierre Souquet Rémi Eschard Henri Lods |
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| Institution: | (1) Laboratoire de Géologie sédimentaire et Paléontologie, Université Paul-Sabatier, 39, allées Jules-Guesde, 31062 Toulouse Cédex, France |
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| Abstract: | Facies types and depositional models for thick gravity-flow deposits are inferred from Cretaceous Pyrenean examples occurring in different sedimentary settings: basin-plain during relative low sea level stand; slope-apron or deep valleys during relative sea level rise; and slope during relative sea level rise. The depositional units are interpreted as debrites, debrite-turbidite couplets, and megaturbidites. They are a function of transport distance and hydraulic jump by liquefaction and phase separation in large subaqueous flows. |
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