1887
  1. Home
  2. A-Z Publications
  3. Geophysical Prospecting
  4. Volume 27, Issue 2
  5. Article
Volume 27 Number 2
  • E-ISSN: 1365-2478

Abstract

A

The blind zone problem is examined with a view to provide a simple means of solving the problem in the general case of arbitrary number of refraction layers constituting the overburden to the masked layers. Considering the first arrival refraction interval corresponding to the masked layer which reduces to zero under blind zone conditions, a method to solve the problem is presented. Derivation of the critical distance expression is also included and convenient solutions to compute the thicknesses of the blind zone and its immediate overlayer are worked out. Based on test calculations on some known instances, the efficacy of the method is illustrated. A Fortran program for use when large numbers of refraction layers are involved under the overburden or when more than one masked layer is encountered is available from the authors.

Loading

Article metrics loading...

/content/journals/10.1111/j.1365-2478.1979.tb00980.x
2006-04-27
2024-04-26

  • From This Site

    /content/journals/10.1111/j.1365-2478.1979.tb00980.x
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Green, R., 1962, The hidden layer problem, Geophys. Prosp.10, 166–170.
    [Google Scholar]
  2. Greenhalgh, S. A., 1977, Comments on “The Hidden layer problem in seismic refraction work”, Geophys. Prosp.25, 179–181.
    [Google Scholar]
  3. Hawkins, L. V. and Maggs, D., 1961, Nomograms for determining maximum errors and limiting conditions in seismic refraction surveys with a blind zone problem, Geophys. Prosp.9, 526–532.
    [Google Scholar]
  4. Hawkins, L. V., 1962, Discussion on the problem of the hidden layer with the blind zone, Geophys. Prosp.10, 548.
    [Google Scholar]
  5. Kaila, K. L. and Hari, Narain, 1970, Interpretation of seismic refraction data and the solution of the hidden layer problem, Geophysics35, 613–623.
    [Google Scholar]
  6. Soske, J. L., 1959, The blind zone problem in engineering geophysics, Geophysics24, 359–365.
    [Google Scholar]
  7. Stulken, E. J., 1967, Constructions, graphs and nomographs for refraction computations, in Seismic Refraction Prospecting, edited by Society of Exploration Geophysicists, 304–339.
http://instance.metastore.ingenta.com/content/journals/10.1111/j.1365-2478.1979.tb00980.x
Loading
  • Article Type: Research Article

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error