| | NSSH Part 629 - Glossary, H-M | NRCS Soils (Site not responding. Last check: 2007-10-11) |
 | | horn [glacial geology] - A high, rocky, sharp pointed, steep-sided, mountain peak with prominent faces and ridges, bounded by the intersecting walls of three or more cirques that have been cut back into the mountain by headward erosion of glaciers. |
 | | It is composed chiefly of rock fragments derived from valley walls by glacial abrasion and plucking, or colluvial accumulation from adjacent slopes. |
 | | (b) A moraine formed by glacial abrasion of a rocky protuberance near the middle of a glacier and whose debris appears at the glacier surface in the ablation area. |
| soils.usda.gov /technical/handbook/contents/part629glossary3.html (7228 words) |