File:Phyllites (Anakeesta Formation, Neoproterozoic; Newfound Gap Road roadcut, Great Smoky Mountains, Tennessee, USA) 10 (36229474283).jpg

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

Original file (3,008 × 2,000 pixels, file size: 5.49 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description

Phyllite in the Precambrian of Tennessee, USA.

This is an outcrop of Anakeesta Formation in the Great Smoky Mountains. It's one of many stratigraphic units in the ~50,000 feet thick Ocoee Supergroup. The Ocoee has considerable deposits of sandstone and shale originally deposited as sands and muds in an ancient ocean trench. Trenches form along subduction zones, where a tectonic plate composed of thin, heavy oceanic lithosphere dives down into the mantle below another tectonic plate of either oceanic lithosphere or thick, lightweight continental lithosphere.

Rocks in the Anakeesta Formation were originally shales, but have been metamorphosed to phyllites. Phyllite is a foliated, low to intermediate grade metamorphic rock dominated by mica. It often has wrinkled and crinkled foliation surfaces. The brownish coloration in this outcrop is iron oxide staining produced by oxidative weathering of pyrite in the phyllite.

Stratigraphy: Anakeesta Formation, Great Smoky Group, Ocoee Supergroup, Neoproterozoic

Locality: roadcut along Newfound Gap Road (= Rt. 441) (= locality at mile markers 11 to 12 of Moore, 1988, p. 93 - A Roadside Guide to the Geology of the Great Smoky Mountains National Park), near Anakeesta Ridge landslide viewing area, ~1-2 road miles north of Newfound Gap, Great Smoky Mountains, far-southern Sevier County, far-eastern Tennessee, USA
Date
Source Phyllites (Anakeesta Formation, Neoproterozoic; Newfound Gap Road roadcut, Great Smoky Mountains, Tennessee, USA) 10
Author James St. John

Licensing

[edit]
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.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/36229474283 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

File history

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

Date/TimeThumbnailDimensionsUserComment
current02:16, 6 December 2019Thumbnail for version as of 02:16, 6 December 20193,008 × 2,000 (5.49 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

You cannot overwrite this file.

There are no pages that 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:Phyllites_(Anakeesta_Formation,_Neoproterozoic;_Newfound_Gap_Road_roadcut,_Great_Smoky_Mountains,_Tennessee,_USA)_10_(36229474283).jpg&oldid=906960724"