10 February 2017
Friday fold: the Grand Canyon
Posted by Callan Bentley
Steve Mirsky, an editor at Scientific American (he does their “60 Second Science” podcast), loans us some photographs today for the Friday fold.
Steve took these images in the Grand Canyon, Arizona, on a trip that the National Center for Science Education runs every summer:
Based on where he took them, I think these in the Tapeats Sandstone, base of the Paleozoic sequence that makes up most of the Canyon’s celebrated walls. I wouldn’t expect much folding in that unit, but Garry Hayes has documented some, and it appears to be of a similar character. If anyone knows differently, then please let me know.
Thanks for sharing your fold photos, Steve. Happy Friday, everyone!
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.