GEO 1111 Lecture Notes - Lecture 17: Super Slow, Apple Community, Hydrosphere

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: David Schneider

Document Summary

What is a glacier: thick enough amount of ice that we can actually observe deformation, just because of the uneven distribution of the weight of the ice, because of excessive weight pushes the accumulation to the margins because for he low and high pressure, it tries to flatten out (slides: a thick, naturally accumulated ice mass that forms over hundreds or thousands of years, and deforms (flows) under the force of its own weight. Glacier budget: zone of accumulation: more snow is falling here that snow is being lost from different processes, zone of ablation: loss dominates, more melting, overall result is more loss, equilibrium is where ablation is equal to accumulation, + budget: glacier moves down accumulation expanding, budget: retreat, more chopping more quickly than you are feeding it, causes: + more snow, less snow (maximizing melting, caving: sheading large pieces of ice and sublimation.