GEOG 1300 Lecture Notes - Lecture 12: Ice Wedge, Outwash Plain, Frost Heaving
18 Apr 2016
School
Department
Course
Professor
Document Summary
About 77% of earth"s freshwater is frozen. Glacier: a large mass of ice resting on land or floating as the ice shelf in the sea adjacent to land. Glaciers are not frozen lakes or groundwater ice. Glaciers move slowly in stream-like patterns (they flow) Alpine glaciers: generally, a glacier in a mountain range is an alpine glacier or mountain glacier, alpine comes from the alps of central europe where many mountain glaciers abound, behave much life rivers, four common subtypes. Cirque glacier: glacier in a bowl-shaped recess at the head of the valley. Most closely resemble a river of ice. Often have cirque glaciers at their headwaters. Piedmont glacier: at the base of a mountain range. Where the glacier leave the mountain range foothill area. Located at lower altitudes which tend to have warmer temperatures. Tidewater glacier: (tidal glacier), a glacier ends in a body of water influenced by tides.
