REFRACTION DETERMINATION OF WATER TABLE DEPTH AND ALLUVIUM THICKNESS

DURING AN INVESTIGATION OF ALLUVIUM USING A SHALLOW REFRACTION SEISMOGRAPH, TIME-DISTANCE CURVES OBTAINED INDICATED TWO REFRACTION INTERFACES. THE SHALLOWER OF THE INTERFACES IS THE GROUND-WATER TABLE, WHOSE DEPTH WAS OBTAINED WITH AN ACCURACY OF PLUS OR MINUS 10 PERCENT. THE DEEPER INTERFACE IS EITHER THE SURFACE OF THE BEDROCK OR THE BASE OF THE WEATHERED ZONE ON THE BEDROCK. IF THIS LOWER INTERFACE IS THE SURFACE OF THE BEDROCK, THE VELOCITY OF SEISMIC WAVES IN THE WEATHERED MATERIAL WILL BE CONSIDERABLY LOWER THAN IF THE INTERFACE IS THE BASE OF THE WEATHERED ZONE. USING THIS CRITERIA MAKES IT POSSIBLE TO DETERMINE WHETHER THE SEISMIC WAVE IS REFRACTED FROM THE SURFACE OF BEDROCK OR THE BASE OF THE WEATHERED ZONE. /AUTHOR/

  • Supplemental Notes:
    • Vol 33, No 3, PP 481-488, 5 FIG, 2 TAB, 5 REF
  • Corporate Authors:

    Society of Exploration Geophysicists

    Shell Building, P. O. Box 3098
    Tulsa, OK  USA  74101
  • Authors:
    • Duguid, J O
  • Publication Date: 0

Media Info

  • Serial:
    • Geophysics
    • Issue Number: 0
    • Publisher: Society of Exploration Geophysicists

Subject/Index Terms

Filing Info

  • Accession Number: 00229523
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:38AM