File:De Chelly Sandstone (Lower Permian; Canyon de Chelly, Arizona, USA) 1.jpg
Original file (3,008 × 2,000 pixels, file size: 5.83 MB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]_1.jpg&action=edit§ion=1){kind=link}
| Description |
English: Sandstones in the Permian of Arizona, USA.
This spectacular canyon in Arizona has sheer walls of Permian-aged De Chelly Sandstone (pronounced "De Shay"). Most of the unit consists of horizontally-bedded and cross-bedded quartzose sandstones representing ancient sand sheets and desert sand dunes. A vast sand dune "sea" was present at the time - such an environment is called an "erg" (a modern example is northern Africa's Sahara Desert). The reddish-brown and orangish-brown coloration is from hematite (iron oxide, Fe2O3). Dark-colored desert varnish partially covers many cliff faces here. The canyon floor is moderately lush with greenery and has some agricultural plots. The rimrock at the top of the section is the Shinarump Conglomerate, an Upper Triassic, fluvial, coarse-grained siliciclastic unit. It consists of quartzose sandstones, pebbly sandstones, and lithic conglomerates. Stratigraphy: De Chelly Sandstone, Leonardian Stage, Lower Permian Locality: view from Antelope House overlook (Navajo Fortress overlook), northern rim of "Canyon del Muerto" (= Canyon of the Dead), Canyon de Chelly National Monument, northeastern Arizona, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/51947121366/ |
| Author | James St. John |
Licensing
[edit]_1.jpg&action=edit§ion=2){kind=link}
- 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.
|
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/51947121366. It was reviewed on 22 March 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:50, 22 March 2022 | | 3,008 × 2,000 (5.83 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51947121366/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
_1.jpg&oldid=685532048){kind=link}