File:Calcite boxwork, Wind Cave.jpg
Original file (3,008 × 2,000 pixels, file size: 3 MB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Calcite boxwork from Wind Cave, southern Black Hills, western South Dakota, USA (public display, Field Museum of Natural History, Chicago, Illinois, USA). Boxwork is a scarce cave feature characterized by a network of intersecting veins projecting from cave walls or ceilings. Boxwork veins are typically composed of calcite, but quartz and gypsum boxwork have also been reported. Wind Cave in South Dakota’s Black Hills is the best locality on Earth for seeing abundant, well-developed boxwork. Prima facie, boxwork appears to be “just” the result of differential dissolution of intensely fractured-and-veined limestone during cave formation. Research by karst workers has shown that boxwork at Wind Cave (and other localities) has a complex origin, and requires the original presence of carbonate and sulfate sedimentary rocks (see Palmer, 2007). Synthesized from: Palmer, A.N. 2007. Cave Geology. Dayton. Cave Books & Cave Research Foundation. 454 pp. |
| Date | |
| Source | Calcite boxwork (Wind Cave, southern Black Hills, western South Dakota, USA) 1 |
| Author | James St. John |
Licensing
- 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 jsj1771 at https://www.flickr.com/photos/47445767@N05/14972169049. It was reviewed on 10 September 2014 by FlickreviewR 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 | 00:33, 10 September 2014 | | 3,008 × 2,000 (3 MB) | Tillman | Transferred from Flickr via Flickr2commons |
File usage
The following 2 pages use this file:
Global file usage
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on he.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on zh.wikipedia.org
