University of Idaho College of Agricultural and Life Sciences Plant, Soil & Entomological Sciences Soil & Land Resources
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Vertisols

(source of photo unknown, but likely from NRCS)
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 10. gilgai pattern on Vertisol landscape
Texas

This image shows another example of gilgai micro-topography commonly associated with Vertisols. The gilgai pattern seen here consists of micro-knolls surrounding circular micro-depressions, which are filled with water. This pattern is more common on nearly level landscapes such as seen here, while the micro-ridge and micro-valley gilgai relief is more common on sloping landscapes (see Image 9).
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  Examples:
1. Typic Hapludert
Texas
2. Udic Haplustert
Puerto Rico
3. Udic Haplustert
southcentral Texas
4. Epiaquert landscape
southern Idaho
5. Xeric Epiaquert
southern Idaho
6. surface cracks in Vertisol
Utah
7. Vertisol slickensides
8. cracked wall on Vertisol
9. gilgai pattern
South Dakota
10. gilgai pattern
Texas
If you have any comments, suggestions, or questions about the 12 Soil Orders web site,
please contact Dr. Paul McDaniel  at the Soil Science Division,
University of Idaho, Moscow, ID 83844-2339.