File:Post-impact, low-temperature, fracture-filling gypsum ("selenite") (Eocene, 39 Ma; Haughton Impact Structure, Devon Island, northern Canada) 1.jpg

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

Original file (3,416 × 1,867 pixels, file size: 2.24 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Fracture-filling gypsum ("selenite") from the Eocene of Canada. (13.8 centimeters across at its widest) (Centre for Planetary Science and Exploration collection, London, Ontario, Canada)

The Eocene-aged (39 Ma) Haughton Impact Structure is located on Devon Island in northern Canada. The target rocks were Middle and Lower Paleozoic sedimentary rocks, floored by Precambrian metamorphic rocks. Clasts of these surface and subsurface target rocks occur in abundance at the Haughton Structure, eroding from impact breccias. Shattercones also occur, sometimes in sufficient abundance to trip over them.

The rock seen here is a very post-impact, low-temperature vein filling of macrocrystalline gypsum ("selenite").
Date
Source https://www.flickr.com/photos/47445767@N05/16843266936/
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@N05/16843266936. It was reviewed on 26 March 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

26 March 2024

File history

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

Date/TimeThumbnailDimensionsUserComment
current20:20, 26 March 2024Thumbnail for version as of 20:20, 26 March 20243,416 × 1,867 (2.24 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/16843266936/ 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:Post-impact,_low-temperature,_fracture-filling_gypsum_(%22selenite%22)_(Eocene,_39_Ma;_Haughton_Impact_Structure,_Devon_Island,_northern_Canada)_1.jpg&oldid=886578837"