Podcast
Questions and Answers
What is the primary force that drives the movement of a glacier?
What is the primary force that drives the movement of a glacier?
- Temperature
- Gravity (correct)
- Pressure from surrounding rocks
- Wind
What is the term for the intermediate texture between snow and ice that forms as snow accumulates?
What is the term for the intermediate texture between snow and ice that forms as snow accumulates?
- Snowpack
- Ice grains
- Glacier mass
- Firn (correct)
What is the name of the zone near the surface of the glacier where the ice is too brittle to flow?
What is the name of the zone near the surface of the glacier where the ice is too brittle to flow?
- Cracking zone
- Flow zone
- Rigid zone (correct)
- Plastic zone
What is the minimum requirement for a glacier to form?
What is the minimum requirement for a glacier to form?
What is the process by which ice grains change shape in a glacier?
What is the process by which ice grains change shape in a glacier?
Which type of glacier is typically associated with mountainous regions and occupies valleys?
Which type of glacier is typically associated with mountainous regions and occupies valleys?
What is the term for the process of ice being removed from a glacier?
What is the term for the process of ice being removed from a glacier?
What type of valley is carved by an alpha glacier?
What type of valley is carved by an alpha glacier?
What is the term for a knife-edge ridge of rock that separates two adjacent cirques?
What is the term for a knife-edge ridge of rock that separates two adjacent cirques?
What is the term for sediment transported by ice and deposited beneath, at the side, or at the toe of a glacier?
What is the term for sediment transported by ice and deposited beneath, at the side, or at the toe of a glacier?
What type of moraine forms when two valley glaciers merge?
What type of moraine forms when two valley glaciers merge?
What is the term for a period when temperatures are under the overall average, causing ice sheets to extend their range?
What is the term for a period when temperatures are under the overall average, causing ice sheets to extend their range?
