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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/094/02/0091-0097

    • Keywords

       

      Surface rock density; correlation coefficient; Bouguer reduced gravity; ground relief; linear interpolation

    • Abstract

       

      Computation of the coefficient of correlation between the Bouguer reduced gravity and the ground relief apparently helps minimize the subjectivity inherent in the Nettleton’s method of surface rock density determination. The ideal density is the one that results in zero correlation between them. The iterative procedure in sweeping the calculations through the range of densities chosen can be avoided by taking advantage of the linear relationship between this coefficient and the density. Linear interpolation is therefore suggested to arrive at the ideal density. The suggested procedure consequently consists of correlation coefficient computations for the two-density extremum values within which the density of the surface rock formations is expected to lie. The computer program for this method is also presented. The procedure involved and the efficacy of the method are illustrated with some practical analyses.

    • Author Affiliations

       

      G Ramadass1 S M Varaprasada Rao1 M S Vijaya Raghava1

      1. Centre of Exploration Geophysics, Osmania University, Hyderabad - 500 007, India
    • Dates

       
  • Journal of Earth System Science | News

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