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piedmont glacier. large ice lobe spread out over surrounding terrain, associated with the terminus of a large mountain valley glacier. The massive lobe of Malaspina Glacier in Alaska is clearly visible in this photograph taken from a Space Shuttle flight in 1989.
- Science of Glaciers
Piedmont glaciers occur when valley glaciers spill into...
- Science of Glaciers
Piedmont glaciers occur when valley glaciers spill into relatively flat plains, where they spread out into bulb-like lobes. Malaspina Glacier in Alaska is one of the most famous examples of this type of glacier, and is the largest piedmont glacier in the world.
Piedmont glaciers differ from valley glaciers primarily in their formation and flow patterns. While valley glaciers form within mountain valleys and are confined by valley walls, piedmont glaciers occur when these valley glaciers exit their confines and spread out onto flat land or plains.
1 sty 2014 · Definition. A valley or outlet glacier exhibiting a lobe- or fan-shaped section (“piedmont lobe”) immediately beyond the confining valley mouth, where the ice tongue emanates onto an unconstrained, lower slope angle terrain (Stroeven 2013). Valley glaciers may coalesce to form large, multilobate piedmont glaciers.
geology. Also known as: shelf ice. Learn about this topic in these articles: characteristics. In glacier: Classification of mountain glaciers. …of mountain ranges are called piedmont glaciers. Outlet glaciers are valley glaciers that originate in ice sheets, ice caps, and ice fields.
9 lut 2018 · Valley and piedmont glaciers originate in the high alpine and terminate on land. They often flow through deep bedrock valleys that confine the ice on either side. Over time, they carve and shape these valleys (see U-Shaped Glacial Valleys).
6 lut 2021 · North of the Gallegos River valley, glacigenic deposits outcrop in two altimetric levels. The Meseta Latorre is the highest level (1,064 m a.s.l.), a relic of the ancient Andean piedmont.
