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100   $a20140926d1975      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aAutomatic interpretation of Schlumberger sounding curves, using modified Dar Zarrouk functions /$fby Adel A.R. Zohdy
210  1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1975.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (39 pages) $cillustrations
225 1 $aGeological Survey bulletin ;$v1313-E
300   $aTitle from title screen (viewed September 15, 2014).
300   $a"New techniques in direct-current resistivity exploration."
300   $a"Formulas defining two types of modified Dar Zarrouk curves are used to invert Schlumberger sounding curves, uring an iterative procedure. The number of layers, which is equal to the number of points on the inverted curve, is reduced by automatically smoothing the corresponding DZ curve."
320   $aIncludes bibliographical references (pages 37-39).
517 1 $aNew techniques in direct-current resistivity exploration, interpretation of Schlumberger sounding curves
606   $aEarth resistance (Geophysics)$xData processing
606   $aElectric currents
606   $aElectric prospecting$xData processing
606   $aEarth resistance (Geophysics)$xData processing$2fast
606   $aElectric currents$2fast
606   $aElectric prospecting$xData processing$2fast
615  0$aEarth resistance (Geophysics)$xData processing.
615  0$aElectric currents.
615  0$aElectric prospecting$xData processing.
615  7$aEarth resistance (Geophysics)$xData processing.
615  7$aElectric currents.
615  7$aElectric prospecting$xData processing.
700   $aZohdy$b Adel A. R.$f1935-2014,$01387198
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910707457703321
996   $aAutomatic interpretation of Schlumberger sounding curves, using modified Dar Zarrouk functions$93436764
997   $aUNINA