Eskers east of Rainier
View on map:46.886867°N 122.622596°W Comments
"This is the largest concentration of eskers in the Puget Lowland. Eskers are deposits of sand and gravel left as long, winding ridges by meltwater streams that flowed in tunnels under or in the ice sheet. They form after the ice stagnates (stops advancing)." (see reference)
Description
Esker
An esker, eskar, eschar, or os, sometimes called an asar, osar, or serpent kame,[1][2] is a long, winding ridge of stratified sand and gravel, examples of which occur in glaciated and formerly glaciated regions of Europe and North America. Eskers are frequently several kilometres long and, because of their uniform shape, look like railway embankments.[3]
References
All text is available under the terms of the Creative Commons Attribution-ShareAlike License
Average user rating: Not rated
Click on a star to rate