Geology 101 HW11
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- a deep crack in an ice sheet or glacier
- The resulting intensity of the shear stress causes a breakage along the faces.
a period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers
a thick floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface.
a geological interval of warmer global average temperature lasting thousands of years that separates consecutive glacial periods within an ice age.
- Soil at or below the freezing point of water 0 °C (32 °F) for two or more years.
- Most permafrost is located in high latitudes
- (i.e. land close to the North and South poles)
unsorted glacial sediment
How do glaciers move?
- Slowy - few feet/day
- Surges - 100's of feet/day
- -Pastic ductile flow
- -Basal Slip
- Abrasion - creates flour and later deposited by wind as loess
- Glacial Striations
What would you like to do?
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