GEOL 1001 Lecture : Notes On Glaciers
Document Summary
Accumulation where snow falls and turns in to ice. Front of glacier moves forward and back based on the balance. No change in sea level due to icebergs. Glaciers has already changed sea level when it enters the water. We know that glacier were present at one point due to landscape. Striations ice has little rocks frozen into and when ice moves over bedrock it scratches. Glacier moves material towards front due to flow. If glacier is still for a while a hill of sediment will form. Top level of glacier is called brittle zone. Dry bottom glacier frozen to bed moves by ice forming internally. Moraine-hill of sediment formed by movement of sediment to the front of the glacier. Glaciofluvial deposits- not directly deposited by glaciers but by water derived from glaicers. U shaped valleys- rivers cause v shaped glaiers because of the nature of there flow cause you shaped valleys.
