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| Mrs H digs the hornblende. The rocks in this wash are the roots of a mountain range created by a continental-continental collision about 1.8 billion years ago. The results of the Yavapai-Mazatzal orogony was a mount chain that stretched from So. Cal to Georgia and probably reached heights comparable to the modern Himalayas. |
| Camera: NIKON D700 | Date: 2/19/11 4:51 PM | Resolution: 4256 x 2832 | ISO: 200 | Exp. Time: 1/200s | Aperture: 7.1 | Focal Length: 30.0mm (~30.0mm) |
| Total images: 192 | Last update: 2/26/11 6:32 PM | Help |