colorado national monument
TRANSCRIPT
COLORADO NATIONAL MONUMENT
A Presentation
by Jaime Sandberg
For GEO-111
Physical Geographical Sub-topic 1
Fluvial Deposition in Arid Lands
Physical Geographical Sub-topic 2
Fluvial Erosion in Arid Lands
Coastal Processes
Physical Geographical Sub-topic 3
Devil’s Kitchen
The Uncompahgre Highland rises to mountainous heights…
Coke Ovens
then is worn down over millions of years to a nearly level plain. (These ancient crystalline rocks - granite, gneiss, schist - which were at the core appear today in the canyon floors.) …
Balancing Rock
Great bodies of water follow, depositing layer upon layer of soft, sedimentary rocks as distant mountains give themselves up, grain by grain, to be reformed.
The Canyon Floor contains dark purple Proterozoic rock
Rock-fall deposits cover most of the red
Chinle Formation at the base of the cliffs
of Wingate Sandstone…
Independence Monument
Inside Devil’s Kitchen
The Kayenta Formation caps the cliffs with
resistant silica-cemented rocks…
Devil’s Kitchen in No Thoroughfare Canyon showing erosional remnants of caps of Kayenta
Formation on pedestals of the Wingate Sandstone…
Classifying the Deposits of the Monument
http://pubs.usgs.gov/imap/i-2740/i-2740.pdf .
How Thick Are They?
http://pubs.usgs.gov/imap/i-2740/i-2740.pdf .
Layers in time
http://3dparks.wr.usgs.gov/coloradoplateau/colorado_strat.htm
Bibliography
• “Colorado National Monument,” National Park Service, accessed December 7, 2011.http://www.nps.gov/colm/index.htm .
• • “Colorado National Monument,” Frommers, accessed December 7, 2011.
http://www.frommers.com/destinations/grandjunction/1468024512.html .• • Robert B. Scott, Anne E. Harding, William C. Hood, Rex D. Cole, Richard F. Livaccari, James B.
Johnson, Ralph R. Shroba, and Robert P. Dickerson, “Geologic Map of Colorado National Monument and Adjacent Areas, Mesa County, Colorado,” Geologic Investigations Series, I-2740, 2001. http://pubs.usgs.gov/imap/i-2740/i-2740.pdf .
• • Judith Kohler, “Colorado National Monument: A pocket-size Grand Canyon,” Summit Daily via
Associated Press, January 9, 2011. http://www.summitdaily.com/article/20110109/NEWS/110109839 .• • “Should Colorado National Monument become national park?” Denver Post via Associated Press,
March 26, 20111.• http://www.denverpost.com/nationworld/ci_17707430?source=rss .• • Stewart Green, “John Otto Climbs Independence Monument,” accessed December 7, 2011.
http://climbing.about.com/od/historyofclimbing/ss/OttoAndIndy_2.htm .