File:Bedding in cave wall (Prairie du Chien Group, Ordovician; Crystal Cave, near Spring Valley, Wisconsin, USA) 5 (18955931772).jpg

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

Original file ‎(3,000 × 4,000 pixels, file size: 3.11 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description

Crystal Cave is a tourist cave just southwest of the town of Spring Valley in northeastern Pierce County, western Wisconsin, USA. This is an uncommon example of a dolostone network cave, developed in Ordovician-aged Prairie du Chien Group sedimentary rocks.

The stratigraphic succession at Crystal Cave is: - Willow River Dolomite (1st & 2nd levels of the cave) - New Richmond Sandstone (a relatively thin interval here) - Oneota Formation (3rd level/bottom level)

According to info. provided by Crystal Cave personnel, the travertine speleothem here is relatively young - <3000 years old, with most of it being <500 years old. Based on regrown broken speleothem from 1940s cave trail development, the speleothem growth rate here is estimated at about 1.5 inches per century.

Chert nodules and drusy quartz-lined cavities occur in the dolostone in places at Crystal Cave. Solution pockets are moderately common, which produce a moth-eaten appearance to the dolostone cave walls and ceilings. Larger rooms and passage intersections have apparent break-out domes developed in the ceiling. Cave passages are frequently developed along subvertical joints (see map - people.uwec.edu/jolhm/Cave2007/TeamC/TeamC/CrystalCave/Cr...).

Travertine speleothem occurs in some areas - principally dripstone (stalactites, stalagmites, columns) and flowstone. Some Crystal Cave travertine speleothem is fluorescent and even phosphorescent.
Date
Source Bedding in cave wall (Prairie du Chien Group, Ordovician; Crystal Cave, near Spring Valley, Wisconsin, USA) 5
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 jsj1771 at https://flickr.com/photos/47445767@N05/18955931772. It was reviewed on 27 July 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

27 July 2015

File history

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

Date/TimeThumbnailDimensionsUserComment
current18:32, 27 July 2015Thumbnail for version as of 18:32, 27 July 20153,000 × 4,000 (3.11 MB)Natuur12 (talk | contribs)Transferred from Flickr via Flickr2Commons

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:Bedding_in_cave_wall_(Prairie_du_Chien_Group,_Ordovician;_Crystal_Cave,_near_Spring_Valley,_Wisconsin,_USA)_5_(18955931772).jpg&oldid=819928522"