|
|
|
|
|
|
|
| |
| 23-OCT-2006 | Dave Beedon |
How did the "balls" form? Why are they only here, on this narrow shelf atop a huge sandstone fin?
They are similar to hematite concretions, stone balls formed from minerals that
precipitated from flowing water. These, though, were most likely formed with
carbonate rather than hematite (evaluation provided by Marjorie Chan---thank you!).
.
| Full EXIF Info | |
| Date/Time | 23-Oct-2006 12:13:18 |
| Make | Nikon |
| Model | NIKON D80 |
| Flash Used | No |
| Focal Length | 20 mm |
| Exposure Time | 1/200 sec |
| Aperture | f/10 |
| ISO Equivalent | 100 |
| Exposure Bias | |
| White Balance | |
| Metering Mode | matrix (5) |
| JPEG Quality | |
| Exposure Program | manual (1) |
| Focus Distance | |
All images are copyright 1966 - 2023 by Dave Beedon (davebeedon AT comcast DOT net).