Sedimentary Rocks Lecture 6

Front 1

What is the Erosion Equation?

Back 1

is an expression of mass conservation that relates changes in volume of moving sediment above a bed to changes in bed elevation by sediment deposition and/or erosion.

Front 2

Spatial change in what variable of the Erosion Equation affects erosion or deposition on a sediment bed?

Back 2

Sediment deposition and erosion is primarily the consequence of a change in boundary shear stress, shear velocity, or mean flow velocity.

Front 3

Temporal change in what variable of the Erosion Equation affects erosion or deposition on a sediment bed?

Back 3

.

Front 4

What three variables can be used to estimate the magnitude of the sediment flux and the volume of sediment in motion per unit bed area?

Back 4

boundary shear stress, shear velocity, or mean flow velocity.

Front 5

Is sediment deposition and erosion directly related to the local magnitude of the boundary shear stress, shear velocity, or average flow velocity?

Back 5

not directly related