17 March 2014

Angle of repose in Devonian shale, Corridor H

Posted by Callan Bentley

Where the Needmore Formation is falling apart on Corridor H, sloughed-off shale is piling up in a tiny talus slope:


You could slap a protractor on that photo and get a pretty good measurement of the angle of repose of this chippy, flaky granular material.

Eyeballing it, that looks like about 45° to me.