File:Andesite breccia (San Juan Volcanic Field, Tertiary; Ouray, Colorado, USA) 1 - 52187457502.jpg

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

Original file ‎(3,166 × 2,763 pixels, file size: 5.61 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Andesite breccia from the Tertiary of Colorado, USA.

Andesite is an intermediate igneous rock, the extrusive equivalent of diorite. Its texture ranges from porphyritic to aphanitic to vesicular to brecciated (as in this sample). The rock comes from southwestern Colorado's extensive San Juan Volcanic Field, a complex area with multiple, Tertiary-aged volcanic centers and numerous volcanic rock units. Economically significant, precious metal-mineralized veins and replacement deposits are present that have long been targets for mining. Pictures of vintage San Juan gold ores can be seen in this photo album: www.flickr.com/photos/jsjgeology/albums/72157692701572272.

Locality: unrecorded / undisclosed site at or near the town of Ouray, Ouray County, San Juan Mountains, southwestern Colorado, USA
Date
Source https://www.flickr.com/photos/47445767@N05/52187457502/
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@N05/52187457502. It was reviewed on 6 July 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 July 2022

File history

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

Date/TimeThumbnailDimensionsUserComment
current15:42, 6 July 2022Thumbnail for version as of 15:42, 6 July 20223,166 × 2,763 (5.61 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52187457502/ 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:Andesite_breccia_(San_Juan_Volcanic_Field,_Tertiary;_Ouray,_Colorado,_USA)_1_-_52187457502.jpg&oldid=899044153"