| A | B |
|---|
| exfoliation | sheets of rock that gradually break off |
| oxidation | chemical weathering combining water and air to create rust |
| abrasion | wearing a rock down by friction |
| frost wedging | mechanical weathering involving expansion of repeated freezing and thawing |
| sediments | small particles that settle out of wind and water |
| slump | mass wasting where soil and debris slowly slide down a curved surface of rupture |
| mudflow | downhill mass movement caused by heavy rains mixing with soil |
| humus | decayed organic component of soil |
| soil texture | soil characterization by particle size |
| deposition | process by which weathered rock and soil pieces are placed in a new location |
| ore | minerals mined for profit |
| weathering | rocks breaking down to form sediments |
| erosion | process of breaking down and removing sediment |
| barrier island | long narrow land formation that forms parallel to the coast |
| creep | slowest form of mass movement |
| rockslides | fastest mass movements |
| rockfall | free fall of detached rock |
| horizon A | soil layer of mineral matter with humus |
| horizon C | soil layer of aging parent material |
| climate | most important factor for soil formation |
