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Filtering by: Creator Ellison, Mackenzie T. Remove constraint Creator: Ellison, Mackenzie T. Decade 1960-1969 Remove constraint Decade: 1960-1969 Subject Soils -- Analysis Remove constraint Subject: Soils -- Analysis

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  • Water loss and uptake in clayey subsoil materials

    Creator:
    Stannard, Davis Robertson
    Abstract:
    B and C horizon samples from twenty four selected profiles along a north-south transect in the Willamette Valley were examined for possible correlation between shrinkage properties and kind of clay minerals present. Observations of linear shrinkage, weight loss from a condition of maximum plasticity, and changing character of X-ray diffraction...
    Resource Type:
    Masters Thesis
    Full Text:
    analysis of undried rwhole soilr samples was also made. On the basis of the )t-ray diffraction patterns

  • Genetic and stability relationships of four Western Cascade soils

    Creator:
    Paeth, Robert Carl, 1925-
    Abstract:
    A sequence of soils derived from tuffaceous rocks was sampled on the H. J. Andrews Experimental Forest and adjacent U. S. Plywood land to determine some genetic and stability relationships. The less than two micron size fraction from each sample was characterized by x-ray diffraction with respect to crystalline clay...
    Resource Type:
    Dissertation
    Full Text:
    this study and to Drs. Moyle E. Harward and Chester T. Youngberg for their encouragement and

  • Nature of interlayer material in silicate clays of selected Oregon soils

    Creator:
    Singleton, P. C.
    Abstract:
    A study was conducted to investigate the nature of hydroxy interlayers in the chlorite-like intergrade clays of three Oregon soils with respect to kind, amount, stability, and conditions of formation. The clays of the Hembre, Wren, and Lookout soils, selected to represent weathering products originating from basaltic materials under humid,...
    Resource Type:
    Dissertation
    Full Text:
    between layer silicates that contain different degrees of hydroxy interlayering: chlorite T chlorite