File:Grand Canyon National Park Supai Group, Hermit Trail.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (3,872 × 2,592 pixels, file size: 4.41 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents
Description

Supai Group's 800 foot / 244m rock layers as seen along Hermit Trail. NPS Photo by Kristen M. Caldon.

The rocks of the Supai Group are red sandstones and siltstones, deposited 315-285 million years ago during the Paleozoic Era- Early Pennsylvanian Period.

Supai Group rocks are primarily non-marine, meaning that they were not deposited in the ocean. Instead, the Supai Group was primarily deposited along a coastal low-land plain. At times it was swampy while at other times it was dry and sandy.

Plant fossils and high-angle aeolian (wind-blown) sand dunes reveal these two different environments.

The red color in the Supai Group rocks comes from iron oxide, which is perhaps better known as rust. It is this mineral that also stains the Redwall Limestone below.

Learn more,

<a href="http://nature.nps.gov/views/layouts/Main.html#/GRCA/geology/" rel="nofollow">nature.nps.gov/views/layouts/Main.html#/GRCA/geology/</a>
Date
Source Flickr: Grand Canyon National Park: Supai Group 0789
Author Public Domain
Permission
(Reusing this file)
This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 3 January 2013, 18:22 by Tillman. On that date, it was confirmed to be licensed under the terms of the license indicated.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.


Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current18:22, 3 January 2013Thumbnail for version as of 18:22, 3 January 20133,872 × 2,592 (4.41 MB)Flickr upload bot (talk | contribs)Uploaded from http://flickr.com/photo/50693818@N08/7695266080 using Flickr upload bot

You cannot overwrite this file.

The following page uses this file:

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Grand_Canyon_National_Park_Supai_Group,_Hermit_Trail.jpg&oldid=711938763"