File:Eagle Valley Evaporite (Middle Pennsylvanian; north of the town of Gypsum, Colorado, USA) 3.jpg
Jump to navigation
Jump to search
Size of this preview: 800 × 460 pixels. Other resolutions: 320 × 184 pixels | 640 × 368 pixels | 1,024 × 589 pixels | 1,280 × 736 pixels | 2,048 × 1,178 pixels.
Original file (2,048 × 1,178 pixels, file size: 1.94 MB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary[edit]
_3.jpg&action=edit§ion=1){kind=link}
| Description |
English: This is an outcrop of the Eagle Valley Evaporite, a Middle Pennsylvanian unit dominated by rock salt (halite, NaCl), rock gypsum (CaSO4·2H2O), and rock anhydrite (CaSO4). These three rock types form by evaporation of seawater and the precipitation of dissolved minerals. With deep burial, evaporites tend to engage in upward, solid-state flow. A large area around the town of Gypsum, Colorado is extensively deformed by upward movement, dissolution, and collapse of various evaporite rocks - this is the Eagle Collapse Center, which covers about 2,500 square kilometers. Evaporite rock movement and deformation occurred principally in the late Cenozoic.
Locality: ~north of the town of Gypsum, western Eagle County, northwest-central Colorado, USA Info. synthesized from: Chronic & Williams (2002) - Roadside Geology of Colorado. Lidke et al. (2002) - Geological Society of America Abstracts with Programs 34(6): 288. Mallory (1971) - The Eagle Valley Evaporite, northwest Colorado - a regional synthesis. United States Geological Survey Bulletin 1311-E. 37 pp. |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/51151833108/ |
| Author | James St. John |
Licensing[edit]
_3.jpg&action=edit§ion=2){kind=link}
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@N05/51151833108. It was reviewed on 6 May 2021 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 | 19:20, 6 May 2021 | | 2,048 × 1,178 (1.94 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51151833108/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
_3.jpg&oldid=697528253){kind=link}