File:Grand Canyon Vincent Bloch.jpg

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English: Grand Canyon, Bright Angel Canyon at Granite Gorge.

(view north)--The southwest section of Br. Angel Can, south of Phantom Creek is a sub-fault section, upside-to-the-west normal fault (but a small 3-sub fault block). The lowest 4 members of the (6-member) Unkar Group, upon Vishnu Schist, occur in this uplifted "en:horst-type" section. The Unkar Group is geologically paleo-deposited at an angular unconformity, dipped about 15 degrees. The top of the layers, were eroded to flatness, by an erosion unconformity, but the erosion resistant Shinumo Quartzite, was an "island", with Tapeats Sandstone, laid only around the island perimeter. (shown in other parts of the photo, up the Bright Angel Canyon, for instance); the erosion unconformity is named, the en:Great Unconformity, also found at other selected locales in Arizona; also south Nevada. (The 6-unit Unkar Group for example, is a "conformity", with no erosional sequences, interspersed.)
Date Summer 2004
date QS:P,+2004-00-00T00:00:00Z/9,P4241,Q40720564
Source Took the picture myself
Author Vincent Bloch
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(Reusing this file)		 Public Domain

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Grand Canyon

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current08:22, 31 July 2006Thumbnail for version as of 08:22, 31 July 20062,560 × 1,920 (3.28 MB)Vincent.bloch (talk | contribs){{Information |Description=Grand Canyon |Source=Took the picture myself |Date=Summer 2004 |Author=Vincent Bloch |Permission=Public Domain }}

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