17 March 2014
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.
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.
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