Today's discussion focused on the paper by Lowe (1982) - Sediment gravity flows: II. Depositional models with special reference to the deposits of high density turbidity currents. J. Sediment. Petrol. 52, 279-297. Topics included interactions and transformations between turbidity currents, debris flows, and grain flows moving down a subaqueous slope. We discussed the problem of how to maintain gravel clasts moving in a grain flow dominated by frictional and dispersive forces, and concluded that buoyancy must be an important factor in many situations. Next week we will look at a case study from the Loreto Basin in Baja California, Mexico.

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