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Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier
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Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Glacial outwash at Saskatchewan Glacier
Glacial outwash at Saskatchewan Glacier 
Erosional formations at Saskatchewan Glacier
Erosional formations at Saskatchewan Glacier 
Erosional formations at Saskatchewan Glacier
Erosional formations at Saskatchewan Glacier 
Erosional formations at Saskatchewan Glacier
Erosional formations at Saskatchewan Glacier 
Structural morphologies at Saskatchewan Glacier
Structural morphologies at Saskatchewan Glacier 
Structural morphologies at Saskatchewan Glacier
Structural morphologies at Saskatchewan Glacier 
Structural morphologies at Saskatchewan Glacier
Structural morphologies at Saskatchewan Glacier 
Structural morphologies at Saskatchewan Glacier
Structural morphologies at Saskatchewan Glacier 
Erosional formations at Saskatchewan Glacier
Erosional formations at Saskatchewan Glacier 
Lake at Saskatchewan Glacier
Lake at Saskatchewan Glacier 
Lake at Saskatchewan Glacier
Lake at Saskatchewan Glacier 
Glacial ice at Saskatchewan Glacier
Glacial ice at Saskatchewan Glacier 
Lake at Saskatchewan Glacier
Lake at Saskatchewan Glacier 
Erosional formations at Saskatchewan Glacier
Erosional formations at Saskatchewan Glacier 
Glacial ice at Saskatchewan Glacier
Glacial ice at Saskatchewan Glacier 
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Glacial outwash at Saskatchewan Glacier

Glacial outwash is the distribution of sediment that has been transported by meltwater in a downhill direction. Larger sediment gets deposited near the toe of the glacier while finer sediment and sand gets deposited further downstream. Finer sediments can be transported at a further distance because it becomes suspended in the water column until flow velocity slows. Image A is a shallow meandering stream composed of various grain sizes including sand and gravel. The milky blue water in all the images is due to ‘rock flour’ which is suspended fine sediment formed by mechanical erosion of bedrock by glacial movement. Image B is also a meandering stream and has a much higher flow velocity than the stream in image A. The trimline can be seen in image B-1 and represents the recent thickness of the glacier where the fine sediment interacts with the un-weathered bedrock along the walls of the valley. The high flow velocity in image B is leading to erosion of the cut bank and deposition of large sediment seen in image B-1. Image C is a braided channel, the water here has a lower flow velocity and covers a larger area, depositing finer sediments and sand. Image D is also a braided outwash channel and faces away from the foot of the glacier, highlighting the U-shaped valley. Image E is near the toe of the glacier and shows a large amount of meltwater draining from beneath the glacier as well as large pieces of ice. Image F is an aerial image of the braided channel further downstream and the sediment here is much finer-grained than in images A through E. 
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Date 07/27/2017 
Creator Dolphin, Glenn
Digital Publisher Calgary : University of Calgary 
Location
Country Canada
Municipality Improvement District No. 9
Park Banff National Park
How can you use this image?
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. 
Copyright Status In Copyright
Usage Rights Commercial, Education, Exhibition, Instruction, Private study, Publication, Remix and adapt, Research
Conditions of Use https://libanswers.ucalgary.ca/faq/199047 
License URL https://creativecommons.org/licenses/by/4.0/
License CC BY 4.0
Attribution 
Attribution Glacial outwash at Saskatchewan Glacier, 2017, (CU123890) by Dolphin, Glenn, is used under CC BY 4.0. Courtesy of Geoscience Images Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.