Natural electromagnetic field fluctuations in the 3.0- to 0.02-cps range

1963 ◽  
Vol 51 (10) ◽  
pp. 1337-1342 ◽  
Author(s):  
W.H. Campbell
Keyword(s):  
Electromagnetic Field ◽  
Field Fluctuations ◽  
Natural Electromagnetic Field

scholarly journals MESA: a new configuration for measuring electromagnetic field fluctuations

1999 ◽  
Vol 31 (4) ◽  
pp. 680-683
Author(s):  
Timothy M. Harte ◽  
David L. Black ◽  
Michael T. Hollinshead
Keyword(s):  
Electromagnetic Field ◽  
Field Fluctuations

THE EFFECT OF A FAULT ON THE EARTH’S NATURAL ELECTROMAGNETIC FIELD

Geophysics ◽  
1962 ◽  
Vol 27 (5) ◽  
pp. 651-665 ◽  
Author(s):  
I. d’ Erceville ◽  
G. Kunetz
Keyword(s):  
Electromagnetic Field ◽  
Physical Properties ◽  
Vertical Plane ◽  
Lateral Variation ◽  
Infinite Depth ◽  
Mathematical Solution ◽  
Natural Electromagnetic Field

The main purpose of this paper is to study the effect on a natural electromagnetic field of a lateral variation in the physical properties of the ground. An exact mathematical solution is given for two media of different resistivities in contact along a vertical plane (fault) overlying a horizontal basement that is taken as being either infinitely resistive or infinitely conductive, or at infinite depth. Results are given in the form of curves along profiles perpendicular to the fault. Some practical inferences are drawn from the shape of the curves and from their comparison.

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