<ecology> Grassland soils of steppes and prairies characterised by deep topsoil (mollic epipedon, common in the Great Plains of the West. ... (09 Oct 1997) ...
Found on
http://www.encyclo.co.uk/local/20973
Soil order (type) of the United States Natural Resources Conservation Service Soil Classification System. A mollisol soil is typically found in semiarid grassland environments. They are rich in organic matter and have an abundance of calcium carbonate nodules within the profile.
Found on
http://www.physicalgeography.net/physgeoglos/m.html
No exact match found.
