THE MEASUREMENT OF COLOUR IN RELATION TO THE STRUCTURAL ANALYSIS OF SOIL

THE APPLICATION OF A NEW TECHNIQUE IS DESCRIBED, IN WHICH THE REFLECTION SPECTRUM OF THE SOIL IS DETERMINED. THE PERCENTAGE OF LIGHT OF A GIVEN WAVELENGTH REFLECTED BY THE SOIL IS SHOWN AS A FUNCTION OF WAVELENGTH. THE REFLECTION SPECTRA OF SEVERAL WHITE, GREY, BLACK, YELLOW, BROWN, PINK, AND RED SOILS ARE PRESENTED, WITH THOSE FOR KAOLINITE, GOETHITE, AND HAEMATITE. A GENERAL INTERPRETATION OF THE DATA IS ATTEMPTED, ASCRIBING THE COLOURS TO INORGANIC COMPOUNDS, TO ORGANIC COMPOUNDS, AND ALSO TO ORGANIC- METALLIC COMPLEXES. A PARTICULAR INTERPRETATION OF THE ORIGIN OF THE SEVERAL SOIL COLOURS IS GIVEN, WHITE FOR PURE SOILS, BLACK FOR ORGANIC SOILS, GOETHITE FOR BROWN SOILS, AND HAEMATITE FOR RED SOILS. THE BROWN AND RED SOILS ARE SHOWN TO HAVE THE SAME COLOUR AS PURE GOETHITE AND HAEMATITE , PROVIDING CONCLUSIVE EVIDENCE THAT THE OXIDES IN THESE SOILS OCCUR AS A COATING ON OTHER PARTICLES. /RRL/A/

  • Supplemental Notes:
    • Vol1, Pp26-30, 6FIG, 2TAB
  • Corporate Authors:

    Butterworth & Company Ltd, London /UK

    /4th Conf
    ,   USA 

    N/A

    ,   USA 

    Western Australia University, Australia

    Nedlands, Western Australia,   Australia 

    National Belgian Roads Congress

    ,    

    Pca Foreign Literature Study

    ,    
  • Authors:
    • Coleman, J D
  • Conference:
  • Publication Date: 0

Media Info

  • Serial:
    • Volume: 2

Subject/Index Terms

Filing Info

  • Accession Number: 00228771
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Aug 15 2004 2:37AM