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Define the following (select four): (1) Depth of penetration (2) Sferics (3) magneto-telluric fields (4) Eddy currents

Define the following (select four): (1) Depth of penetration (2) Sferics (3) magneto-telluric fields (4) Eddy currents

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Q1 / Define the following (select four): (1) Depth of penetration (2) Sferics (3) magneto-telluric fields (4) Eddy currents (5) Turam system 

Q2 / Compare between Phase measuring systems and TDEM 

Q3 / Give the important parameters that effect in electromagnetic survey ? 

 
 
Li 10 Give the geophysical interpretation of this figure by using Phase measuring * .method -+20% --20% Imaginary Real
Transcribed Image Text:Li 10 Give the geophysical interpretation of this figure by using Phase measuring * .method -+20% --20% Imaginary Real
o During a phase measuring EM survey, the resultant EM field was observed to have an amplitude 75% of that of the primary field and lagged behind it with an angular phase difference of 24°. Determine the amplitude of the secondary field of the subsurface conductor and of its real and imaginary components, all expressed as a percentage of the primary. What do these results reveal about the ?nature of the conductor
Transcribed Image Text:o During a phase measuring EM survey, the resultant EM field was observed to have an amplitude 75% of that of the primary field and lagged behind it with an angular phase difference of 24°. Determine the amplitude of the secondary field of the subsurface conductor and of its real and imaginary components, all expressed as a percentage of the primary. What do these results reveal about the ?nature of the conductor
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