Data/hora: 02/06/2024 09:16:04

Biblioteca(s): | Embrapa Solos.
Data corrente: | 22/11/2002
Data da última atualização: | 22/11/2002
Autoria: | SMECK, N. E.; THOMPSON, M. L.; NORTON, L. D.; SHIPITALO, M. J.
Título: | Weathering discontinuities: a key to fragipan formation
Ano de publicação: | 1989
Fonte/Imprenta: | In: SMECK, N.E.; CIOLKOSZ, E.J. Fragipans: their occurrence, classificacao and genesis. Madison: Soil Science Society of America, 1989. (SSSA. Special Publication, 24).
Páginas: | p.99-112
Idioma: | Inglês
Conteúdo: | Recently, numerous studies of soils with fragipans have been conducted in Ohio.This chapter is an attempt to collale the Ohio data with that available in the literature in order to formulate a general theory applicable to the formation of fragipans. Six pedons were selected to illustrate various pedogenetic scenarios in Ohio resulting in fragipan development and contributing to the development of our theory. Based on data for these pedons, it is concluded that fragipans form at weathering discontinuities originating either as a result of a wethering front or due to the occurrence of a lithologic or chronologic discontinuities due to an interaction between acid weathering products and components present in relatively unweathered material to form a bonding agentThis theory is presented for additional testing and evaluation
Palavras-Chave: | Estados Unidos; Solos.
Thesaurus Nal: | fragipans.
Categoria do assunto: | --
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (1133-1) - ADC - PL - -- - 631.4 - S637f - 1993.00062 - DIS