Electrical, electromagnetic, and magnetotelluric methods

Application of electrical methods began with Robert W. Fox’s 1830 observation of self potentials associated with copper vein deposits in Cornwall. Conrad Schlumberger introduced the direct current equal potential line resistivity method in 1912. Harry W. Conklin received the first patents on the electromagnetic (EM) method in 1917. From these beginnings, the history of the development of the resistivity induced‐polarization (IP), magnetotelluric and EM methods are traced to the present time. It is of interest to note that application of electrical methods flourished from about 1920 to 1930, but then the methods were developed slowly until after World War II when a major burst of development activity took place. However, the interpretational basis of the methods remained poor until the last several years when application of numerical techniques using computers permitted forward and inverse solutions to electrical boundary value problems in two and three dimensions. Field hardware gradually evolved from 196...

[1]  James R. Wait,et al.  A conducting sphere in a time varying magnetic field , 1951 .

[2]  John S. Sumner,et al.  Principles of induced polarization for geophysical exploration , 1976 .

[3]  R. Corwin,et al.  The self-potential method in geothermal exploration , 1979 .

[4]  H. Seigel,et al.  Mapping earth conductivities using a multifrequency airborne electromagnetic system , 1978 .

[5]  Misac N. Nabighian.  QUASI‐STATIC TRANSIENT RESPONSE OF A CONDUCTING PERMEABLE SPHERE IN A DIPOLAR FIELD , 1970 .

[6]  D. D. Snyder.  A method for modeling the resistivity and IP response of two-dimensional bodies , 1976 .

[7]  C. Swift,et al.  Theoretical magnetotelluric and turam response from two-dimensional inhomogeneities , 1971 .

[8]  D. Ghosh.  THE APPLICATION OF LINEAR FILTER THEORY TO THE ' DIRECT INTERPRETATION OF GEOELECTRICAL RESISTIVITY SOUNDING MEASUREMENTS * , 1971 .

[9]  R. N. Edwards.  The Magnetometric Resistivity Method and its Application to the Mapping of a Fault , 1974 .

[10]  Shri Krishna Singh.  ELECTROMAGNETIC TRANSIENT RESPONSE OF A CONDUCTING SPHERE EMBEDDED IN A CONDUCTIVE MEDIUM , 1973 .

[11]  K. Cook,et al.  INTERPRETATION OF RESISTIVITY DATA OVER FILLED SINKS , 1954 .

[12]  R. Greenfield,et al.  Numerical solutions of the response of a two-dimensional earth to an oscillating magnetic dipole source , 1976 .

[13]  David L.B. Jupp,et al.  Two-dimensional magnetotelluric inversion , 1977 .

[14]  R. E. Langer,et al.  An inverse problem in differential equations , 1933 .

[15]  D. Pridmore.  Three dimensional modelling of electric and electromagnetic data using the finite element method , 1978 .

[16]  L. Cagniard.  Basic theory of the magneto-telluric method of geophysical prospecting , 1953 .

[17]  A. Apparao,et al.  Depth Of Investigation In Direct Current Methods , 1971 .

[18]  S. Ward,et al.  RIDGE REGRESSION INVERSION APPLIED TO CRUSTAL RESISTIVITY SOUNDING DATA FROM SOUTH AFRICA , 1977 .

[19]  K. Vozoff,et al.  The Magnetotelluric Method in the Exploration of Sedimentary Basins , 1972 .

[20]  T. Madden,et al.  Induced Polarization: a Preliminary Study of its Chemical Basis , 1977 .

[21]  Harold M. Mooney,et al.  THE ELECTROCHEMICAL MECHANISM OF SULFIDE SELF-POTENTIALS* , 1960 .

[22]  P. G. Hallof,et al.  On the interpretation of resistivity and induced polarization field measurements , 1957 .

[23]  Gordon F. West,et al.  The Electromagnetic Response of a Conductive Inhomogeneity in a Layered Earth , 1976 .

[24]  Robert Were Fox.  On the Electro-Magnetic Properties of Metalliferous Veins in the Mines of Cornwall , 1815 .

[25]  F. X. Bostick,et al.  THE ESTIMATION OF MAGNETOTELLURIC IMPEDANCE TENSOR ELEMENTS FROM MEASURED DATA , 1971 .

[26]  S. Stefanesco,et al.  Sur la distribution électrique potentielle autour d'une prise de terre ponctuelle dans un terrain à couches horizontales, homogènes et isotropes , 1930 .

[27]  K. Cook,et al.  Interpretation of resistivity data , 1966 .

[28]  A. Dey,et al.  Resistivity modeling for arbitrarily shaped three-dimensional structures , 1979 .

[29]  J. Coggon.  Electromagnetic and electrical modeling by the finite element method , 1971 .

[30]  H. Mooney,et al.  The Potentials about a Point Electrode and Apparent Resistivity Curves for a Two, Three, and Four Layered Earth , 1956 .

[31]  G. Backus,et al.  Numerical Applications of a Formalism for Geophysical Inverse Problems , 1967 .

[32]  S. Ward,et al.  RIDGE REGRESSION INVERSION ANlED TO_ CMfTAL ~;ST;+/,Yfy SOUNDING DATA FROM SOUTH AFRICA , 1977 .

[33]  D. Bleil.  Induced polarization; a method of geophysical prospecting , 1953 .

[34]  G. Törnqvist.  Some practical results of airborne electromagnetic prospecting in Sweden , 1958 .

[35]  Roger J. Phillips,et al.  THE INVERSION OF VERTICAL MAGNETIC DIPOLE SOUNDING DATA , 1973 .

[36]  Oe Logn,et al.  Mapping Nearly Vertical Discontinuities by Earth Resistivities , 1954 .

[37]  Thomas C. Cantwell,et al.  Detection and analysis of low frequency magnetotelluric signals , 1960 .