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This article in SSSAJ

  1. Vol. 38 No. 4, p. 685-686
    Received: Jan 18, 1974
    Accepted: May 6, 1974

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Scanning Electron Microscopy as Applied to Organo-Mineral Complexes in Alkaline Extracts of Soil1

  1. J. F. Dormaar2



Lyophilized alkaline extracts from a Black Chernozem (Udic Haploboroll) Ah horizon were scanned in a scanning electron microscope. The micrographs obtained show the physical associations of organic and mineral matter before and after acidification and purification. A large percentage of the organoclay mineral complexes present in humic acids is probably formed during acidification.

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