10 November 2017

Friday fold: soft sediment deformation in California’s Castaic Formation

Posted by Callan Bentley

The Friday fold comes to us today from Bret Leslie of the Nuclear Regulatory Commission, a friend through the Geological Society of Washington. It shows soft sediment deformation in the Late Miocene Castaic Formation, a unit deposited in the Ridge Basin, a wrench basin that opened in a releasing bend along the San Andreas Fault:

Click to enlarge

Details of the site can be explored at this geocache description.

Thanks for sharing, Bret!

If you have a Friday fold you’d like to share, get in touch with me.