5 Written questions
5 Matching questions
- soil creep
- weathering front
- Sediment yield
- a amount of sediment eroded per unit basin area per unit time. Does not equal total sediment eroded from upland areas. Arrives to mouth without being deposited in valley bottom.
- b interface between weathered material (regolith, soil) and bedrock
- c alternate feeze/thaw or wet/dry cycles - needle ice, as water freezes it pushes particles up, they fall downslope with gravity when they unfreeze. Slow downslope movement of soil and rock due to expansion and contraction (.1 to 15 mm a year). Very shallow - only upper part of soil, irregular movement that depends on slope angle and soil type
- d physical action of the sediment moving over the bedrock
- e downcutting of a stream channel by stream erosion
5 Multiple choice questions
- impact of falling drops, effective with sparce vegetation, amount of erosion depends on kinetic energy - not effective in transport of sediment - depends a lot on slope!
- Chemical weathering, abrasion, hydraulic action
- round ice with dome
- perennial, severe cold, poles
- 3 or more cirques adjacent to one another (the peak that survived glacier erosion all around)
5 True/False questions
glacier deposits → ice push, plucking and abrasion
Suspended load → bedload + suspended load
patterned ground → frozen ground
ice shelves → sheets attached to land, oversea floats on water. has steep cliff facing seawater
solifluction → rapid soil creep, soil and rock are saturated and flow downslope. common in subpolar regions, where drainage is inhibited.