Close
Cart (0)
Login
Staff Login
Register
FR
0
Selected
Invert selection
Deselect all
Deselect all
Click here to refresh results
Click here to refresh results
Go to Login page
Mudcracks
Mudcracks
Actions
Overview
Zoom view
Loading details...
Add to Lightbox
Download
Get link
Linked assets
Conceptually similar
Mudcracks
Mudcracks
Mudcracks
Mudcracks
Lake at Saskatchewan Glacier
Lake at Saskatchewan Glacier
Lake at Saskatchewan Glacier
Graded bedding
Clastic sandstone samples
Clastic sandstone samples
Climbing ripple cross lamination
Orthobreccia sample
Ripple lamination
Diplocraterion trace fossil
Ripple lamination
Cross stratification
Gypsum sample
Quartz samples
Quartz samples
Oolite samples
Similar tones
View images with similar tones
Mudcracks
Mudcracks, also referred to as desiccation cracks, are sedimentary structures that form from the drying and contracting of mud as its environment interchanges between wet and dry seasons. Long dry seasons cause fine clay materials to lose their moisture forming cracks that run perpendicular to horizontal bedding, tapering downwards, while wet seasons allow for sediment transport to infill the cracks before the mud is remoisturized and swells, as shown in samples B and C with the red markers indicating the infilled mudcrack in contrast to the blue horizontal strata of mud. From a birds-eye view, this infill typically results in a 3-dimensional texture of a slight upward folding as the sediment dries and a distinguishable polygonal shape, as seen in samples A and D. Due to its characteristic cross-sectional downward tapering and a distinct polygonal top view, the preservation of mudcracks can be especially useful as paleoindicator of upright orientation.
Ask a Question
Date
09/07/2018
Creator
Dolphin, Glenn
Digital Publisher
Calgary : University of Calgary
Location
Country
Canada
Municipality
City of Calgary
How can you use this image?
Permitted uses are outlined in License and Usage Rights. Usage Restrictions can only be waived by the copyright holder. Add to cart and make a request if you have any questions.
Copyright Status
In Copyright
Usage Rights
Commercial
,
Education
,
Exhibition
,
Instruction
,
Private study
,
Publication
,
Remix and adapt
,
Research
Conditions of Use
https://libanswers.ucalgary.ca/faq/199047
License URL
https://creativecommons.org/licenses/by/4.0/
License
CC BY 4.0
Attribution
Attribution
Mudcracks, 2018, (CU124200) by Dolphin, Glenn, is used under CC BY 4.0. Courtesy of Geoscience Images Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.