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Lake at Saskatchewan Glacier
Samples
Conceptually similar
Mudcracks
Erosional formations at Saskatchewan Glacier
Glacier water
Glacial outwash at Saskatchewan Glacier
Structural morphologies at Saskatchewan Glacier
Landscape of Ptarmigan Cirque
Glacial ice at Saskatchewan Glacier
Saskatchewan Glacier
Climbing ripple cross lamination
Clastic sandstone samples
Landscape of Drumheller badlands and coulees
Porphyry
Quartzite sample
Structural morphologies of Sulphur Mountain
Gneiss samples
Chrysotile asbestos sample
Turbidite
Oolite samples
Slate sample
Phyllite samples
Lake at Saskatchewan Glacier
Large glaciers like Saskatchewan Glacier create depressions in the bedrock due to an added load. As the galcier retreats and melts, these depressions are filled with ice, glacial meltwater, and sediment, forming glacial lakes such as the one in image A. Images B and C depicts the the lake floor beginning to form mudcracks and is composed of fine sediment and sand. Mudcracks are sedimentary structures that form when mud undergoes drying and contracting due to interchanging wet and dry environments. Long dry periods cause fine clay materials to lose their moisture forming cracks, while wet seasons allow for sediment transport to infill the cracks before the mud is remoisturized and swells.
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Digitized Date
07/27/2017
Creator
Dolphin, Glenn
Country
Canada
Province
Alberta
Municipality
Improvement District No. 9
How can you use these images?
Permitted uses are outlined in License and Usage Rights. Usage Restrictions can only be waived by the copyright holder. Add to cart and make a request if you have any questions.
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License URL
https://creativecommons.org/licenses/by/4.0
Copyright Status
In copyright
Attribution
"Lake at Saskatchewan Glacier", 2017, (CU1STO6726) by , is used under . Courtesy of Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.
Unique identifier:
CU1STO6726
Type:
Geoscience