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- A subaqueous fan is a fan-shaped deposit formed beneath water (similar to deltas or terrestrial alluvial fans), and are commonly related to glaciers and crater lakes. Subaqueous fan deposits are generally described as coarse to fine gravel and/or sand, with variable texture and sorting.Underflows (meltwater denser than lake water) tends to produce subaqueous fans with channels and levees. Subaqueous fans can be formed by the influence of glacier movement and by underwater currents typically found at a river delta. The sediment size and composition that makes up the subaqueous fan is dependent on the type of rock that the water flow or glacial ice sheet moves over. Sedimentary structures found in subaqueous fans are heavily dependent on the strength of the water flow. (en)
- Un éventail sous-marin est une structure géologique immergée constituée du dépôt des alluvions rejetées dans la mer par un fleuve ou une rivière sous la forme d'un cône de déjection analogue à ceux rencontrés sur le milieu terrestre. De tels cônes subaquatiques existent aussi en milieu lacustre[réf. nécessaire]. Les plus grands éventails sous-marins se trouvent sur le glacis continental situé en face des grands deltas tels que celui du Gange-Brahmapoutre ou du Mississippi. (fr)
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- 13524 (xsd:nonNegativeInteger)
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- A subaqueous fan is a fan-shaped deposit formed beneath water (similar to deltas or terrestrial alluvial fans), and are commonly related to glaciers and crater lakes. Subaqueous fan deposits are generally described as coarse to fine gravel and/or sand, with variable texture and sorting.Underflows (meltwater denser than lake water) tends to produce subaqueous fans with channels and levees. Subaqueous fans can be formed by the influence of glacier movement and by underwater currents typically found at a river delta. The sediment size and composition that makes up the subaqueous fan is dependent on the type of rock that the water flow or glacial ice sheet moves over. Sedimentary structures found in subaqueous fans are heavily dependent on the strength of the water flow. (en)
- Un éventail sous-marin est une structure géologique immergée constituée du dépôt des alluvions rejetées dans la mer par un fleuve ou une rivière sous la forme d'un cône de déjection analogue à ceux rencontrés sur le milieu terrestre. De tels cônes subaquatiques existent aussi en milieu lacustre[réf. nécessaire]. Les plus grands éventails sous-marins se trouvent sur le glacis continental situé en face des grands deltas tels que celui du Gange-Brahmapoutre ou du Mississippi. (fr)
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- Éventail sous-marin (fr)
- Subaqueous fan (en)
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