Re: the layers
I don't know about the rest of the country, but I'm not aware of any Ordovician (or Silurian) age rocks in the Canyon. The Tapeats, Bright Angel and Muav are...
Hank Schnieder 2003-02-24 14:46:54 #20080

Re: the layers
Hey you other geologist out there I can not remember but are sediments of Ordovician only present in one are of the GC and no other areas in North America?...
Owen Kittredge 2003-02-24 14:37:26 #20079

Re: March 2004 trek
Study www.kaibab.org You can find out most of you answers there. And then come back here for specifics. In my opinion - Havasu is a beautiful place, but...
mhill5252 2003-02-24 14:17:24 #20078

Re: the layers
Tom, Kelsey gives cross sections in the Colorado Plateau hiking book. At one time I had a Grand Canyon field guide that had history, geology, plants and...
RMatth4505@aol.com 2003-02-24 14:12:46 #20077

March 2004 trek
I have a small group of boy scouts (experienced backpackers) that would like to backpack in Grand Canyon next Spring Break. Group size would be 7-10 all...
txpacker146 2003-02-24 14:00:34 #20076

Re: the layers
Tom...there's also some layers just plain gone in some and very prevalent in other parts. best to you and yours.....Doc ----- Original Message ----- From:...
doc thomas 2003-02-24 13:57:48 #20075

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

<< NewerOlder >>

 

Archive of Grand_Canyon_Hikers Yahoo Group as of 2014-10-07. Contact info@e-t.com for help.