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| Carbonaceous tuffa is formed when carbonate-rich spring water interacts with calcium-rich lake water. There's no lake water now... but there used to be! |
| Date: 8/9/10 5:43 PM | ISO: 320 | Exp. Time: 1/400s | Aperture: 10.0 | Focal Length: 34.0mm (~34.0mm) |
| Total images: 50 | Last update: 8/12/10 8:42 PM | Copyright 2010 MrHollister.com | Help |