2 October 2015
Friday fold: cherts at Mount Diablo, California
Posted by Callan Bentley
My former student James O’Brien recently moved out to the left coast, and posted some photos earlier this week of a hike he took at Mount Diablo State Park in the mountains east of the San Francisco Bay area of California.
There are some classic-looking Franciscan cherts exposed there, as these folded examples show:
Seeing these pictures reminded me of the “GoSF” series I wrote last time I went to the AGU Fall Meeting (in 2010). I’m planning to attend the meeting again this year, and look forward to spending some time reacquainting myself with some of these rocks while in San Francisco.
Thanks for sharing the photos, James! 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.