Wikimedia Commons

File:Meta-iron formation (Archean; Quad Creek section - Beartooth Highway roadcut, Beartooth Mountains, Montana, USA) 1.jpg

Original file ‎(4,000 × 3,000 pixels, file size: 8.87 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

edit
Description
English: Meta-iron formation in the Precambrian of Montana, USA.

This iron formation sample was metamorphosed at least twice during the Archean. At about 3.2 Ga, the protolith iron formation lithology (depositional age ~3.3 Ga) was subjected to granulite facies metamorphism. At about 2.8 Ga, the rock was subjected to upper amphibolite facies metamorphism.

The rock is magnetite-rich (a magnet sticks to it) and also has quartz and garnet.

Locality: Quad Creek section (= locality of Mueller et al., 1987) - roadcut on southern side of Beartooth Highway (Rt. 212), immediately west of Quad Creek, between milepost 50 and milepost 51, southern side of Rock Creek Canyon, just north of the eroded edge of Beartooth Plateau, southwest of the town of Red Lodge, Beartooth Mountains, southern Montana, USA (45° 01' 41.27" North latitude, 109° 24' 55.31" West longitude)

Some info. from:

Mueller et al. (1987) - Geological Society of America Centennial Field Guide, Rocky Mountain Section, pp. 75-76.

Maier (2011) - Geology and Geochemistry of Haean Zircon-Bearing Supracrustals from Quad Creek, Eastern Beartooth Mountains, Montana, USA. M.S. Thesis. University of Colorado. 59 pp.
Date
Source https://www.flickr.com/photos/47445767@N05/52614144397/
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@N05/52614144397. It was reviewed on 9 January 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

9 January 2023

File history

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

Date/TimeThumbnailDimensionsUserComment
current13:35, 9 January 2023Thumbnail for version as of 13:35, 9 January 20234,000 × 3,000 (8.87 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52614144397/ with UploadWizard

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:Meta-iron_formation_(Archean;_Quad_Creek_section_-_Beartooth_Highway_roadcut,_Beartooth_Mountains,_Montana,_USA)_1.jpg&oldid=882965877"