01:460:103 Lecture Notes - Lecture 13: Glacier Morphology, Moraine, Valley

• School: Rutgers University
• Department: Geological Sciences
• Course: 01:460:103
• Professor: professor Feignson

Document Summary

The loss of the glacial ice or snow by melting, evaporation, or breaking off into icebergs. (also called wastage). advancing glacier. Glacier with a positive budget, so that accumulation results in the lower edges being pushed outward and downward. alpine glaciation. A sharp ridge that separates adjacent glacially carved valleys. basal sliding. Movement in which the entire glacier slides along as a single body on its base over the underlying rock. cirque. A steep-sided, amphitheater-like hollow carved into a mountain at the head of a glacial valley. continental glaciation. The covering of a large region of a continent by a sheet of glacial ice. crevasse. A long, streamlined hill made of till. end moraine. A ridge of till piled up along the front edge of a glacier. equilibrium line. An irregular line marking the highest level to which the winter snow cover on a glacier is lost during a melt season. (also called snow line. ) erratic.