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H9 Sand dunes and wind ripples. Death Valley National Park. California,
USA
Position:
N036° 23'
W116° 45' approx.
Elevation:
sea level - approx.
Image format:
MF
SAND DUNES & WIND RIPPLES
SAND DUNES as made by build-ups of wind blown sand. They move,
they change, they grow and they shrink. It all depends on the
wind direction, the wind strength and on how much sand is free.
The RIPPLE MARKS are made by very light winds (breezes) altering
the surface of the sand dunes.
More detail
Image Trail:
L35 Fossilized ripple marks. Capitol Reef National Park. Utah, USA
H27 Arid desert. Mexican Hat. Utah, USA
L46 Fossilized ripple marks on titled rock beds. Cornwall, UK
L72 White Gypsum Sand, White Sands National Monument, New Mexico,
USA
L73 Fossilized sand dunes, Navajo Sandstone, Zion National Park,
Utah, USA
H1 River in an arid area. Fremont River, Capitol Reef National Park.
Utah, USA
Links:
www.geology.uvm.edu/vtlandforms/gl_rippl.htm
www.geology.sdsu.edu/visualgeology/geology101/riplmrks.htm
http://www.aqd.nps.gov/grd/parks/deva/index.htm
http://165.83.32.34/grd/usgsnps/deva/devaft.html |
