PIEDMONT SOILS IDENTIFIED BY AERIAL PHOTOGRAPHS

TO SUPPLEMENT PUBLISHED INFORMATION SEVERAL STATES HAVE BEGUN TO USE AERIAL PHOTOGRAPHS FOR DEVELOPING SOILS AND MATERIALS MAPS. A NUMBER OF PUBLISHED REPORTS DESCRIBE THE METHODS AND APPLICATIONS OF AIRPHOTO MAPPING, PARTICULARLY CONCERNING GLACIAL DEPOSITS AND BEDROCK OF IGNEOUS AND SEDIMENTARY ORIGIN. LITTLE HAS BEEN WRITTEN APPLYING TO DEEPLY WEATHERED SOILS DERIVED FROM IGNEOUS AND METAMORPHIC ROCKS. THESE SOILS PREVAIL THROUGHOUT THE PIEDMONT. PIEDMONT FORMATIONS, SHOWN ON THE GENERAL GEOLOGY MAP OF VIRGINIA, HAVE BEEN DELINEATED INSUFFICIENTLY TO BE HELPFUL IN LOCAL PROBLEMS. IN ADDITION, FEW COUNTIES IN VIRGINIA HAVE EXISTING RECENT AGRICULTURAL SOIL MAPS. THEREFORE, AERIAL PHOTOGRAPHS ARE THE ONLY ECONOMICAL MEANS OF OBTAINING DETAILED AREAL SOIL INFORMATION. CORRELATIONS OF AIRPHOTO PATTERNS TO THE VARIOUS MAJOR PARENT MATERIALS, WERE ESTABLISHED FOR THE PIEDMONT PROVINCE AND ASSOCIATED TRIASSIC AREAS IN VIRGINIA. ONCE THE MAJOR AREAS ARE IDENTIFIED, LOCAL SOIL CHANGES CAN BE DIFFERENTIATED READILY. CERTAIN SOILS AND PARENT MATERIALS WERE OBSERVED TO HAVE A MARKED EFFECT UPON PAVEMENT PERFORMANCE. RECOGNITION OF THE RELATIONSHIP BETWEEN SOILS AND PAVEMENT PERFORMANCE SHOULD SERVE AS A GUIDE FOR NEW CONSTRUCTION IN THOSE AREAS. EVEN MORE SIGNIFICANT, SIMILAR SOILS AND ASSOCIATED ENGINEERING PROBLEMS REOCCUR AT ALL LOCATIONS WHERE SIMILAR PARENT MATERIALS ARE FOUND, REGARDLESS OF THE LOCATION WITHIN THE STATE. /AUTHOR/

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  • Supplemental Notes:
    • No 46, pp 48-66, 28 FIG, 1 TAB, 17 REF 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
  • Authors:
    • Stevens, John C
  • Publication Date: 1951

Language

  • English

Media Info

  • Media Type: Print
  • Pagination: pp 48-66
  • Monograph Title: Engineering soil survey mapping
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00229540
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:38AM