Calciargid
A soil profile of a Calciargid in New Mexico. The subsoil below a depth of about 40 cm consists of a clay-enriched argillic horizon (reddish brown) underlain abruptly by a calcic horizon (white) in which calcium carbonate has accumulated. The upper boundary of the calcic horizon is wavy, fluctuating between depths of about 80 and 110 cm. The profile has been smoothed on the right side; the natural soil structure is exposed on the left.
Calciargids have, below the clay-enriched argillic horizon, a calcic (calcium carbonate accumulation) horizon within a depth of 150 cm. Where the argillic horizon is calcareous, it is generally thought to have been recharged with calcium carbonate, possibly from dust, after the argillic horizon formed. Calciargids are commonly on late-Pleistocene erosional surfaces or on gentle to steep slopes.
(Soil Survey Staff. 2015. Illustrated guide to Soil Taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, Nebraska)
For additional information about soil classification, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...
Calciargid
A soil profile of a Calciargid in New Mexico. The subsoil below a depth of about 40 cm consists of a clay-enriched argillic horizon (reddish brown) underlain abruptly by a calcic horizon (white) in which calcium carbonate has accumulated. The upper boundary of the calcic horizon is wavy, fluctuating between depths of about 80 and 110 cm. The profile has been smoothed on the right side; the natural soil structure is exposed on the left.
Calciargids have, below the clay-enriched argillic horizon, a calcic (calcium carbonate accumulation) horizon within a depth of 150 cm. Where the argillic horizon is calcareous, it is generally thought to have been recharged with calcium carbonate, possibly from dust, after the argillic horizon formed. Calciargids are commonly on late-Pleistocene erosional surfaces or on gentle to steep slopes.
(Soil Survey Staff. 2015. Illustrated guide to Soil Taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, Nebraska)
For additional information about soil classification, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...