- petrocalcic
- петрокальциевый
English-Russian dictionary of geology. 2011.
petrocalcic
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Petrocalcic Horizon — A petrocalcic horizon is a diagnostic horizon in USDA soil taxonomy. They are formed when secondary Calcium Carbonate or other carbonates accumulate in the subsoil to the extent that the soil becomes cemented into a hardpan. Petrocalcic horizons… … Wikipedia
Duripan — A duripan is a diagnostic soil horizon of the USDA soil taxonomy that is cemented by illuvial silica into a subsurface hardpan. Similar to a fragipan, petrocalcic horizon and petrogypsic horizon, it is firmly cemented and restricts soil… … Wikipedia
Fragipan — A fragipan is a diagnostic horizon in USDA soil taxonomy. They are altered subsurface soil layers that restrict water flow and root penetration. Fragipans are similar to a duripan in how they affect land use limitations. In soil descriptions,… … Wikipedia
Calcisols — A Calcisol in the FAO World Reference Base for Soil Resources is a soil with a substantial secondary accumulation of lime. Calcisols are common in calcareous parent materials and widespread in arid and semi arid environments. Formerly Calcisols… … Wikipedia
Andisol — (von der Eigenschaft andic, abgeleitet von jap. an do, ‚schwarzer Boden‘ und lat. sol, ‚Boden‘) ist eine der zwölf Hauptgruppen der USDA Bodenklassifikation, ihr entspricht in der FAO Bodenklassifikation und der World Reference Base for Soil… … Deutsch Wikipedia
caliche — A general term for a prominent zone of secondary carbonate accumulation in surficial materials in warm, subhumid to arid areas. Caliche is formed by both geologic and pedologic processes. Finely crystalline calcium carbonate forms a nearly… … Glossary of landform and geologic terms
