Shoshone Falls on the Snake River, Idaho
From: http://www.biggercamera.com/category/stray-dogs/
Timothy H. O’Sullivan – Shoshone Falls, Idaho, 1868
BASALT FLOW
TRACHYTE FLOW
From: http://www.nature.nps.gov/geology/usgsnps/province/columbiaparks.jpg
COLUMBIA PLATEAU
AND
SNAKE RIVER PLAIN
LARGE IGNEOUS PROVINCES
By Bryan et al. 2002, from http://www.mantleplumes.org/SLIPs.html
TYPICAL MANTLE CONVECTION
From http://bprc.osu.edu/education/rr/plate_tectonics/mantle_convection_cell.gif
From http://picasaweb.google.com/lh/photo/fqGljTGZRn81Z4EWaGJmgg
MANTLE PLUME MODELS
By Geoff Davies, from http://academic.emporia.edu/aberjame/student/sedlacek2/mantle.htm
From: http://iceagefloods.blogspot.com/2010/11/lake-bonneville-flood-video-new.html
From:
http://geology.isu.edu/Digital_Geology_Idaho/M
From:
http://www.bio.umass.edu/biology/conn.river/hitchcock.html
Wave cut terraces demonstrate the height of Lake Bonneville in Utah
From: http://www.ask.com/wiki/Wave-cut_platform
Lake Bonneville shoreline terraces
From: http://scienceblogs.com/eruptions/2010/08/back_from_the_field_and_into_a.php
Width of Snake River Canyon carved by catastrophic flood waters
Now-dry alcoves at Blue Lakes carved by catastrophic flood flow
Flood debris from carving canyons and alcoves
From: http://iceagefloods.blogspot.com/2010/11/lake-bonneville-flood-video-new.html
Photo by Michael Light ‘86
Go to: http://www.michaellight.net/home.html
From: http://faculty.weber.edu/kmackay/four_great_surveys_of_the_west.htm
http://explorethecanyon.com/grand-canyon-rafttours-john-wesley-powell-adventure/
http://online.wr.usgs.gov/outreach/highlights/enlarg
ed/king1869.html
From: http://www.pbs.org/wgbh/amex/canyon/maps/index.html
“....the approach to the Shoshone.
You ride upon a waste, - the pale
earth stretched in desolation.
Suddenly you stand upon a brink,
as if the earth had yawned. Black
walls flank the abyss. Deep in the
bed a great river fights its way
through labyrinths of blackened
ruins, and plunges in foaming
whiteness over a cliff of lava. You
turn from the brink as from a
frightful glimpse of the Inferno.”
Image from: http://thedude.com/2006/04/
“Sweeping catastrophism is an error of the past. Radical uniformitarianism,
however, persists, and probably controls the faith of a majority of geologists and
biologists.”
Clarence King address at Yale, 1877