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L61 An evolving Arch. Arches National Park. Utah, USA
Position:
N38° 47'
W109° 35'
Elevation:
5200' / 1585m
Image format:
MF 35mm
AN EVOLVING ARCH. ARCHES NATIONAL PARK. UTAH, USA
An Arch in the making? In a rock fin, a cave develops in a particularly
weak area of the rock. The cave is enlarged by continuing WEATHERING
and EROSION. Eventually the cave enlarges through to the other
side of the fin and an arch develops. Or maybe.. .. the roof caves
in and there is no arch.
Less detail
Image Trail:
Images L58 through L62 are in sequence and should be viewed as
a series.
L58 Rock Fins (I). Arches National Park. Utah, USA
L59 Rock Fin (II). Arches National Park. Utah, USA
L60 Landscape Arch. Arches National Park. Utah, USA
L62 The End & the Beginning of Arches. Arches National Park. Utah,
USA
L70 Window Arch. Moab, Utah, USA
Links:
www.aqd.nps.gov/grd/parks/arch/index.htm (site includes some very good sketches showing the development
of Natural Arches)
http://www.nps.gov/seug/resource/geology/geology.htm
http://geography.com.sg/weathering/index.html
http://geography.com.sg/rivers/index.html
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