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Dave Beedon | all galleries >> Places >> Utah >> Moab (environs) >> Shafer Trail >> Shafer Trail: Cross-Country Descent to the Colorado River >> River Hike, Part 2: The Bench > Remnant of desert varnish on a boulder
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13-APR-2006 Dave Beedon

Remnant of desert varnish on a boulder

Colorado River, below Shafer Trail, Utah

The longer dark area is about one foot (30cm) wide. Desert varnish is a discoloration
of sandstone caused by the interaction of rain water with manganese in the rock.
.

Nikon D100 ,Nikkor 28-105mm f/3.5-4.5D AF
1/125s f/14.0 at 38.0mm hide exif
Full EXIF Info
Date/Time13-Apr-2006 13:30:15
MakeNikon
ModelD100
Flash UsedNo
Focal Length38 mm
Exposure Time1/125 sec
Aperturef/14
ISO Equivalent
Exposure Bias0.67
White Balance (9)
Metering Modematrix (5)
JPEG Quality (6)
Exposure Programmanual (1)
Focus Distance

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