1. Home
    2. Journals
    3. Journal of Earth System Science
    4. Volume 121
    5. Issue 6

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/121/06/1455-1468

    • Keywords

       

      Geophysics; collinear and transverse pole–pole array; groundwater resources; deep potential aquifer; fracture zone; granite.

    • Abstract

       

      Characterization of the shear zone with pole–pole electrical resistivity tomography (ERT) was carried out to explore deep groundwater potential zone in a water scarce granitic area. As existing field conditions does not always allow to plant the remote electrodes at sufficiently far of distance, the effect of insufficient distance of remote electrodes on apparent resistivity measurement was studied and shown that the transverse pole–pole array affects less compared to the collinear pole–pole array. Correction factor have been computed for transverse pole–pole array for various positions of the remote electrodes. The above results helped in exploring deep aquifer site, where a 270 m deep well was drilled. Temporal hydro-chemical samples collected during the pumping indicated the hydraulic connectivity between the demarcated groundwater potential fractures. Incorporating all the information derived from different investigations, a subsurface model was synthetically simulated and generated 2D electrical resistivity response for different arrays and compared with the field responses to further validate the geoelectrical response of deep aquifer set-up associated with lineament.

    • Author Affiliations

       

      Subash Chandra1 E Nagaiah1 D V Reddy1 V Ananda Rao1 Shakeel Ahmed1

      1. CSIR – National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Andhra Pradesh, India.

    • Dates

       
      Published
      December 2012
      Manuscript received
      25 January 2011
      Manuscript revised
      17 January 2012
      Accepted
      12 April 2012

  • Journal of Earth System Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

    • Special Issue - "Call for papers"

      Posted on July 18, 2023
      AI/ML in Earth System Sciences

      Click here for more information

      Extreme weather events with special emphasis on lightning prediction, observation, and monitoring over India

      Click here for more information

© 2023-2024 Indian Academy of Sciences, Bengaluru.

Contact | Site index