The five part deposit produced by a waning turbidite flow. The deposit is split into:
- Structureless massive sand with gravel-rich erosional base.
- Parallel bedded sands produced by the upper flow regime.
- Cross laminated sands with ripple marks.
- Deposited in the lower flow regime.
- Laminated silts.Fine pelagic muds.
A typical Bouma sequence is illustrated below, although all five units may not be developed in each flow:
|Pelagic and hemipelagic muds|
|Cross laminated sands. Ripples|
|Parallel laminated sands|
|Massive Sands with a gravelly base|
|Scoured base with tool and prod marks|