6 April 2018
Friday fold: “wrecumbent in Wrangellia”
Posted by Callan Bentley
Darrel Cowan of the University of Washington has pitched in a Friday fold. Check this lovely scene out:
Darrel says this is
a recumbent fold in the Upper Triassic Nizina and Chitistone limestones. I took the photo when I worked for Shell in 1973 or 1974. I’m pretty sure it is on the west wall of the canyon occupied by the Root Glacier, several kilometers NW of McCarthy, Alaska. The view is west. These limestones are part of the stratigraphy that defines the Wrangellia terrane: the type locality, matter of fact.
Thanks Darrel! This is inspirational!
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.