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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
24/08/1995 |
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Data da última atualização: |
24/08/1995 |
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Autoria: |
SIDHU, P. S.; PUNDEER, G. S.; HALL, G. F. |
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Título: |
Ferro-manganese concretions from the alluvium-derived soils of Punjab. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Journal of the Indian Society of Soil Science, v.26, n.3, p.268-273, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
Fe-Mn concretions separated from two alluvium-derived soils in the central Punjab have
been analysed for their distribution, composition and mineralogy. The concentration are
characterized by the accumulation of Fe, Mn, Zn and Cu as compared to the surrounding soil matrix. The content of Mn increase with the increasing size of concentrations and that
of Fe exhibits an apposite trend. Cu and Zn do not show any systematic variations with
concretion size. Fe and Mn compounds in the concretions have not crystallized into mine-
rals and are X-ray amorphous. A mechanism of the genesis of Fe-Mn concretions is
discussed. |
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Palavras-Chave: |
Amorphous materials; Concrecao; Conteudo de micronutriente; Fe-Mn concretions; Fertility; Material amorfo; Micronutrient content. |
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Thesagro: |
Fertilidade; Solo. |
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Thesaurus Nal: |
soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01351naa a2200265 a 4500
001 1785778
005 1995-08-24
008 1978 bl --- 0-- u #d
100 1 $aSIDHU, P. S.
245 $aFerro-manganese concretions from the alluvium-derived soils of Punjab.
260 $c1978
520 $aFe-Mn concretions separated from two alluvium-derived soils in the central Punjab have been analysed for their distribution, composition and mineralogy. The concentration are characterized by the accumulation of Fe, Mn, Zn and Cu as compared to the surrounding soil matrix. The content of Mn increase with the increasing size of concentrations and that of Fe exhibits an apposite trend. Cu and Zn do not show any systematic variations with concretion size. Fe and Mn compounds in the concretions have not crystallized into mine- rals and are X-ray amorphous. A mechanism of the genesis of Fe-Mn concretions is discussed.
650 $asoil
650 $aFertilidade
650 $aSolo
653 $aAmorphous materials
653 $aConcrecao
653 $aConteudo de micronutriente
653 $aFe-Mn concretions
653 $aFertility
653 $aMaterial amorfo
653 $aMicronutrient content
700 1 $aPUNDEER, G. S.
700 1 $aHALL, G. F.
773 $tJournal of the Indian Society of Soil Science$gv.26, n.3, p.268-273, 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
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