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Landscape of Ptarmigan Cirque
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Landscape of Ptarmigan Cirque
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Conceptually similar
Landscape of Ptarmigan Cirque
Landscape of Ptarmigan Cirque
Landscape of Ptarmigan Cirque
Landscape of Ptarmigan Cirque
Landscape of Ptarmigan Cirque
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Glacial outwash at Saskatchewan Glacier
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Thrust fault, Mt. Yamnuska
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Landscape of Ptarmigan Cirque
Ptarmigan Cirque is a west-facing glacial cirque between Mt. Rae and Mt. Arethusa in Kananaskis Country along the border of Alberta and British Columbia. Glacial cirques are formed as snow freezes in areas protected from sun and wind on a mountainside. As the ice forms, it increases the load on the mountainside cracking the bedrock below and allowing for multiple erosional processes to occur, such as frost-wedging, rock-plucking, and abrasion. The load and erosion that are present on three of the four slopes create a convergence zone of ice and debris. As this ice melts, the distinguishable bowl shape seen in image B-1 is left behind. The accumulation of ice causes disintegration of the rocks below, seen as fine sediments in images A and C. Image C-1 shows the geologic features of uplift, tilting, and folding that would have occurred during mountain building. The landscape in image D, facing west out of the bowl shows remnants of glacial erosion by the loose sediments and till that are left scattered throughout the base of the bowl, as well as a stream and vegetation.
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Digitized Date
09/15/2013
Creator
Dolphin, Glenn
Digital Publisher
Calgary : University of Calgary
Country
Canada
Province
Alberta
Municipality
Kananaskis Improvement District
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Copyright Status
In copyright
License URL
https://creativecommons.org/licenses/by/4.0/
Attribution
"Landscape of Ptarmigan Cirque", 2013, (CU124648) by , is used under . Courtesy of Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.
Unique identifier:
CU124648
Legacy Identifier:
20190213_geoimage_Dolphin_e_0300
Type:
Geoscience Image
Size:
5184px × 3456px 84MB