Electrical Methods

Syllabus: 

  • Conduction of electricity through rocks, electrical conductivities of metals, nonmetals, rock forming minerals and different rocks, 
  • concepts of D.C. resistivity measurement and depth of investigation; 
  • Apparent Resistivity and Apparent Chargeability, Concept of Negative Apparent Resistivity and Negative Apparent Chargeability; 
  • Theory of Reciprocity, Sounding and Profiling, 
  • Various electrode arrangements, 
  • application of linear filter theory, 
  • Sounding curves over multi-layered earth, 
  • Dar-Zarrouk parameters, reduction of layers, Triangle of anisotropy, 
  • interpretation of resistivity field data, 
  • Principles of equivalence and suppression, 
  • self-potential method and its origin; 
  • Electrical Resitivity Tomography (ERT); , 
  • Induced polarization, time and frequency domain IP measurements; 
  • interpretation and applications of SP, resistivity and IP data sets for ground-water exploration, mineral exploration, environmental and engineering applications.