Re: the layers
One of thew reasons for different thicknesses is because of differing
environments of deposition. As the seas moved across the landscape and
back, some areas...
Hank Schnieder 2003-02-24 13:55:44 #20074
Re: the layers
The Grand Canyon Natural History Association publishes a beautiful
map of Grand Canyon geology. The rock layers are color-coded, and
there are numerous...
Bob Bordasch 2003-02-24 13:52:42 #20073
the layers
Speaking of layers, it is intersting to note that the GC formations
vary in thickness between the east and western portions of the Canyon
(north and south...
tomkbourne2002
Re: Geology Help
--- In grandcanyon@yahoogroups.com, david.russell@m... wrote:
Now David, you really need to learn those layers. It's time to do
your homework!
There are...
tomkbourne2002
Re: Geology Help
David -
My preference is to start with 5 sections.
Cliff-Slope-Cliff-Slope-Cliff
Like this:
Upper cliffs - the 3 light colored layers ending at the...
Ken McNamara 2003-02-24 13:05:53 #20070
Geology Help
I have been in the canyon a number of times and struggle with figuring
out what layer of rock I am in as I go along. The Vishnu Schist is
pretty easy but...
david.russell@mac.com 2003-02-24 12:49:58 #20069
News: Federal Government Experiments with Fish Population in the Co
http://tv.ksl.com/index.php?nid=39&sid=10900
dnally
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