Sedimentary Petrology 05: Bedform development (Flume studies)
- What is flume?
- Traction induced bed forms (sedimentary structures)
- Flow regime
What is a flume?
A flume is an elongated plastic or glass tank through which a water current flows. Sediment is placed at the bottom of the flume and moves down current as bed load. Flumes come in different sizes, from a few cm long to a few hundred meters long.
Sediment moving along the base of a channel that mostly stays in contact with the substrate is called bed load.
In a flume study, the following structures can be achieved with increasing current velocity under controlled situations:
- Plan lamination (lower)
- Small current ripples
- Large current ripples (dunes)
- Plan lamination (upper)