Processes of transport and sedimentary structures - The Behaviour of Fluids and Particles in Fluids - Grain size and flow velocity

5 important questions on Processes of transport and sedimentary structures - The Behaviour of Fluids and Particles in Fluids - Grain size and flow velocity


The grain size of the particles in a flow
therefore can be used as an indicator of the velocity
at the time of deposition of the sediment if deposited
as isolated particles.


The grain size of the particles in a flow
therefore can be used as an indicator of the velocity
at the time of deposition of the sediment if deposited
as isolated particles.

What kind of grains could be found in tidal settings, based on the relatively high velocity needed to move cohesive clay particles?


Alternations of mud and sand deposition are seen in
environments where flow is intermittent, such as tidal
settings

What is critical velocity?


The fluid velocity at which a particle becomes entrained in the flow can be referred to as the critical velocity.
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What does the Hjullstrom diagram display? It can be related to transportation in fluid flow.


It shows the relationship between water flow velocity and grain size

What requires more energy: get a grain size moving or keeping it moving?

Once a grain has settled it requires more energy to start it moving than a grain that is already in motion.

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