Science
What are the outer part characteristics of a glacier?
Rigid, brittle, cracks
In what form do Alpine, Valley, or Mountain Glaciers form?
Transformation of V-shaped into U-shaped
What does “tarn” refer to?
A glacial alpine lake
What does a “drift” refer to?
Glacial deposits
How many named glaciers are in the Waterton-Glacier International Peace Park?
Approximately 20
What are the inner parts of a glacier?
Plastic flow zone, ice behaves plastic
What is a Glacier?
The mass of ice that moves under its own weight
What does “cirque” refer to?
Bowl shaped depressions formed by alpine glaciers
What does an “abrasion” refer to?
The rocks in a glacier scratch, polish, and grind against surrounding rocks.
What is the name of the lake located in Glacier National Park?
St. Mary Lake
How does Ice flow due to gravity?
Downhill due to the lubrication of meltwater
What is Erratic?
Ice-transported not derived from local bedrock
What does “stratified drift” refer to?
Sediments deposited by glacial meltwater
What do “striations” refer to?
Scratches made as glacial rocks dragged along the bedrock.
What kind of sedimentary rocks are found in Glacier National Park?
Horns, Aretes, and tilted
What are some characteristics of a continental glaciation?
Large, thick ice sheets that covers continental land masses
What does plucking mean in the context of Glacial Erosion?
“Plucked” chunks of fractured rocks
What does “terminal moraine” refer to?
The furthest advance of a glacier
What is an Alluvial Fan?
It is what is at the base of a mountain that is a fan shaped deposit.
Where is the Yosemite National Park located?
California
How would you describe Alpine Glaciation?
Glaciers that are eventually confined to valleys.
What does “arete” refer to?
A sharp ridge formed by glaciers
What does “till” refer to?
Material deposited directly by a glacier
Where can superimposed former alpine glaciers be found?
Rocky Mountain National Park
Where is the Olympic National Park located?
Washington