![](http://www.alamy.com/thumbs/6/719F596A-1709-4B97-A4BC-21E3C4753800/AYJ8BJ.jpg)
Folded ribbon chert near the Golden Gate Bridge
Folded ribbon chert near the Golden Gate Bridge
Size: 3407px × 5120px
Location: Marin headlands, California USA
Photo credit: © Cal Thompson / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: chert, complex, contorted, earth, folded, franciscan, francisco, geological, geology, geomorphology, headlands, marin, minerals, radiolaria, ribbon, rocks, rocky, san