Wednesday, September 16, 2009
Your sed/strat assignment...
for today: trace or outline the lateral accretion elements that you can observe in this outcrop of the Kayenta Formation along the Colorado River (click to enlarge.) This Jurassic-age unit is interpreted to have been deposited by fluvial channels, eventually succeeded by a change to arid conditions and deposition of the eolian Navajo Sandstone.
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