Folded Radiolarian (ribbon) Chert.April 30, 2017/in chert, Cretaceous Period, Jurassic Period, Marin Headlands, radiolarian California/by Marli Miller anticline, syncline, structural geology, sedimentary https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 21:13:382017-09-13 12:05:23Folded Radiolarian (ribbon) Chert.
