Erosion and Deposition

3. mounds of wind-deposited sand
4. when loose rock falls down a steep slope due to gravity
6. mudflows of volcanic origin
7. a large mass of moving ice that forms by the compacting of snow by natural forces
10. the removal of fine sediment by wind
12. a bowl-shaped depression carved out by an alpine glacier
13. the shifting of materials (especially on a slope)
16. when three or more aretes join
17. a sharp ridge formed between two cirques that are next to each other

1. small glacial valleys that join the deeper main valley
2. formed when chucks of ice are deposited by a glacier and glacial drift builds around the ice block, which then melts
5. the grinding and wearing down of rock surfaces by other rock or by sand particles
8. large boulders that were transported and deposited by glaciers
9. thick deposits of windblown, fine-grained sediments
11. the general term for all of the materials carried and deposited by a glacier
12. the extremely slow movement of materials downslope
14. a rapid movement of a large mass of mud
15. the sudden, rapid movement of a large amount of material downslope