Find us on facebook!
About CGS
Avalanche Info Center
Colorado Geology
Education
Energy Resources
Geologic Hazards
Geologic Mapping
Geological Research
Land Use Regulations
Mineral Resources
Publications
Water
Home > Geologic Hazards > Corrosive Soils
Corrosive Soils in Colorado 
 
Soil corrosion is a geologic hazard that affects buried metals and concrete that is in direct contact with soil or bedrock.  Metals are typically attacked by chloride solutions whereas high sulfate levels are harmful to concrete.  In western Colorado, the saline nature of the Mancos Shale with its abundant secondary sulfate mineralization (gypsum) is considered corrosive to both metals and concrete.  Chloride content, electrical resistivity, and pH level are indicators of the soil’s tendency to corrode ferrous metals.


Last Updated: 10/27/2011 9:17 PM 
 
 

Concrete damaged by corrosive soils derived from the Mancos Shale in downtown Montrose. Photo by Laurie Brandt.

Concrete damaged by corrosive soils derived from the Mancos Shale in downtown Montrose. Photo by Laurie Brandt.


News  |  About Us  |  Site Map  |  Staff Directory  |  Licensing  |  Colorado.gov