MARC

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080 0 |a 550.83:550.37 
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082 0 4 |a 622/.154  |2 19 
083 0 |a Mineral deposits. Prospecting. Applications of induced polarisation techniques 
084 |a OE 18  |2 blsrissc 
084 |a GEO 454f  |2 stub 
090 |a TN270  |b .S85  |9 LOCAL 
099 |a TN  |a 269  |a Su  |9 LOCAL 
100 1 |a Sumner, John S. 
245 1 0 |a Principles of induced polarization for geophysical exploration /  |c J.S. Sumner. 
260 |a Amsterdam :  |b Elsevier Scientific,  |c 1976. 
300 |a xiv, 277 pages :  |b illustrations ;  |c 25 cm 
336 |a text  |b txt  |2 rdacontent 
337 |a unmediated  |b n  |2 rdamedia 
338 |a volume  |b nc  |2 rdacarrier 
490 1 |a Developments in economic geology ;  |v 5 
504 |a Includes bibliographical references (pages 257-262). 
505 0 |a RESISTIVITY PRINCIPLES: Resistivity theory -- Resistivity of earth materials -- Resistivity exploration methods -- THEORY OF INDUCED POLARIZATION: Electrochemical theory -- Applications of electrochemical theory -- Electrical models of induced polarization -- Electrical polarization -- The equivalence of frequency and pulse measurements -- The place of IP theory in the exploration method -- LABORATORY WORK IN INDUCED POLARIZATION: Electrical measurements of rocks -- Frequency-domain studies -- Resistivity spectrum -- Anisotropism -- Time-domain measurements -- Phase measurement -- Early part of decay curve and the comparison with frequency effects -- Considerations of laboratory and field results -- IP FIELD EQUIPMENT: Historical development -- Design considerations -- The signal-generating system -- The IP receiver -- Design considerations from frequency analysis of a square wave -- Filtering -- TELLURIC NOISE AND ELECTROMAGNETIC COUPLING: Telluric (earth) currents -- Coupling of electrical circuits -- Electromagnetic coupling -- IP FIELD SURVEYING: Field procedures -- The current-sending system in the field -- The voltmeter-receiver system -- IP survey conditions -- DRILL-HOLE AND UNDERGROUND SURVEYING AND THE NEGATIVE IP EFFECT: Differences between surface and subsurface methods -- Techniques for subsurface IP and resistivity surveys -- Negative IP effects -- INTERPRETATION OF INDUCED-POLARIZATION DATA: Methods of interpretation -- Grade estimation of mineralization using the IP method -- Quality of the interpreted data -- Review of pseudosection data -- The interpretation report -- THE COMPLEX-RESISTIVITY METHOD: History of the method -- The complex-resistivity survey -- Host-rock response and CR spectra -- Signal detection capabilities of the complex-resistivity method -- Disadvantages of the complex-resistivity method. 
540 |a Current copyright fee: GBP32.84  |c 5\1.  |5 Uk 
650 0 |a Prospecting  |x Geophysical methods. 
650 0 |a Polarization (Electricity) 
650 0 |a Electric prospecting. 
650 6 |a Prospection électrique.  |0 (CaQQLa)201-0066379 
650 6 |a Polarisation (Électricité)  |0 (CaQQLa)201-0015126 
650 6 |a Prospection géophysique.  |0 (CaQQLa)201-0066152 
650 7 |a Polarization (Electricity)  |2 fast  |0 (OCoLC)fst01068303 
650 7 |a Prospecting  |x Geophysical methods.  |2 fast  |0 (OCoLC)fst01079424 
650 7 |a Wirtschaftsgeologie  |2 gnd  |0 (DE-588)4190051-0 
653 |a Mineral deposits  |a Prospecting  |a Applications of induced polarisation techniques 
830 0 |a Developments in economic geology ;  |v 5. 
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