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Pedalfer

Pedalfer is composed of aluminum and iron oxides. It is a subdivision of the zonal soil order comprising a large group of soils in which sesquioxides increase relative to silica during soil formation. Pedalfers usually occur in humid areas. It is not used in the current United States system of soil classification but the term commonly shows up in college geology texts.

Marbut's Pedocal/Pedalfer boundary lies near the 98 meridian and 30 inches annual precipitation. (after Marbut, 1935)

Pedalfers have three subdivisions of which one is Lateritic soils.

Pedalfer is a formative element in the United States soil taxonomic system for the Alfisols soil order. Alf is the formative element in the Alfisol name, and refers to aluminium (Al) and iron (Fe).

See also edit

References edit

  • Baldwin, M.; C.E. Kellogg; J. Thorp (1938). "Soil Classification". Soils and Men: Yearbook of Agriculture 1938. U.S. Government Printing Office, Washington, D.C. pp. 979–1001.
  • Brevik, Eric C. (November 2002). "Soil Classification in Geology Textbooks" (abstract). Journal of Geoscience Education. 50 (5): 539–543. doi:10.5408/1089-9995-50.5.539. S2CID 116487861. Retrieved 2006-04-06.
  • Marshak, Stephen (2004). Essentials of Geology ((First Edition) ed.). W. W. Norton & Company, Inc. ISBN 0-393-92411-4.

pedalfer, composed, aluminum, iron, oxides, subdivision, zonal, soil, order, comprising, large, group, soils, which, sesquioxides, increase, relative, silica, during, soil, formation, usually, occur, humid, areas, used, current, united, states, system, soil, c. Pedalfer is composed of aluminum and iron oxides It is a subdivision of the zonal soil order comprising a large group of soils in which sesquioxides increase relative to silica during soil formation Pedalfers usually occur in humid areas It is not used in the current United States system of soil classification but the term commonly shows up in college geology texts Marbut s Pedocal Pedalfer boundary lies near the 98 meridian and 30 inches annual precipitation after Marbut 1935 Pedalfers have three subdivisions of which one is Lateritic soils Pedalfer is a formative element in the United States soil taxonomic system for the Alfisols soil order Alf is the formative element in the Alfisol name and refers to aluminium Al and iron Fe See also editPedocal USDA soil taxonomyReferences editBaldwin M C E Kellogg J Thorp 1938 Soil Classification Soils and Men Yearbook of Agriculture 1938 U S Government Printing Office Washington D C pp 979 1001 Brevik Eric C November 2002 Soil Classification in Geology Textbooks abstract Journal of Geoscience Education 50 5 539 543 doi 10 5408 1089 9995 50 5 539 S2CID 116487861 Retrieved 2006 04 06 Marshak Stephen 2004 Essentials of Geology First Edition ed W W Norton amp Company Inc ISBN 0 393 92411 4 Retrieved from https en wikipedia org w index php title Pedalfer amp oldid 1003249499, wikipedia, wiki, book, books, library,

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