Erosion Processes Flashcards
0
Q
- Detachment: By physical or biological processes - (5)
A
Hydraulic action. Frost shattering. Salt weathering. Attrition. Abrasion.
1
Q
- Detachment: Rock is
A
Released to become an unattached rock fragment.
2
Q
- Entrainment: lifts particles off
A
The surface and sets them in motion.
3
Q
- Entrainment: Fine particles are difficult to
A
Entrain as they have strong coherent forces, greater than friction and gravity.
4
Q
- Entrainment: Resisted by
A
Friction between the particle & surface and by gravity.
5
Q
- Entrainment: Once particle is in motion,
A
Less force is required to transport it than initially achieve entrainment as it has smaller frictional resistance.
6
Q
- Entrainment: more energy is required for
A
Larger particles.
7
Q
- Transport: reflects conflict between
A
The pull of gravity.
8
Q
- Transport: Depends on the
A
Mass & size of the particle and the speed of transport.
9
Q
- Transport: By (4)
A
Traction,
Saltation,
Solution,
Suspension.
10
Q
- Deposition: Transport stops because of
A
Reduction in speed and because of increase in resistance of particles.
11
Q
- Deposition: Flucculation -
A
Solid particles suspended in liquid form loose aggregations or soft flakes.
12
Q
- Deposition: Precipitation -
A
Dissolved substances become solid and settle out.