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Title: PARTICLE SIZE AND MINERALOGY IN SOIL TAXONOMY
Accession Number: 00179004
Record Type: Component
Availability: Find a library where document is available Abstract: Particle size and mineralogical composition are fundamental criteria for grouping series into families of mineral soils. The compositional data are averaged over a discrete thickness of soil, usually the upper 0.25 to 1 m (10 to 40 in), referred to an the control section. Averaging the data through a control section and relying on compositional rather than genetic factors for soil classification both significantly improve the applicability of Soil Taxonomy for use by engineers. Several suggestions are made for the further increasing its usefulness, including (a) distinguishing at the family level certain problem soils such as loess, perhaps by including density as a criterion; (b) emphasizing the depth and kind of bedrock when the rock is deeper than the present depth cutoff at 0.5 m 920 in); and (c) recognizing the dominant clay mineral when the clay content is less than the present cutoff at 35 percent. /Author/
Supplemental Notes: Publication of this paper sponsored by Committee on Exploration and Classification of Earth Materials. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
Monograph Title: Monograph Accession #: 01411486
Authors: Handy, Richard L.Fenton, Thomas EPagination: pp 13-19
Publication Date: 1977
Serial: ISBN: 0309026717
Media Type: Print
Features: Figures
(7)
; Photos; References
(4)
; Tables
(3)
TRT Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 19 1978 12:00AM
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