10 August 2018
Friday fold: Gnarly chert from Spy Rock
Posted by Callan Bentley
Happy Friday!
Today for for the Friday fold, I have another guest fold: These are Franciscan mélange cherts from Iron Mountain, California, near Laytonville in Mendocino County, on Spy Rock Road. It’s the same stuff you see at Marin Headlands, with outcrops of serpentinite nearby to boot!
These photos were shared by my sister-in-law Gabriella and her husband Jesse; the outcrops are just up the road from their farm on Spy Rock.
Sense of scale in these photos is Jesse’s hand, a lip balm tube, and Gabriella herself!
Thanks for sharing, Jesse and Gaby!
Happy Friday to all.
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.