Abstract
The second vertical derivatives of gravity and magnetic potential are widely used in geophysical prospecting because of their better resolution. On the same basis an attempt has been made to obtain the expressions for the second vertical derivative of the electrical potential and to compute its nature for comparison. Derivative responses over a two-layered earth and also over an anticlinal structure have been computed and it is shown that the second vertical derivative sounding could be employed for greater accuracy in finding out the thickness of such beds or the inclination of the sides of the anticline and its depth when compared with normal resistivity sounding
Similar content being viewed by others
References
Bhattacharyya P K and Patra H P 1968Direct current electric sounding (Amsterdam: Elsevier)
Elkins T A 1951Geophysics 16 39
Kraev A P 1965Fundamentals of geoelectrics (in Russian) (Leningrad: Nedra)
Mosetti F 1963Boll. Geofisica Teored. Appl. 5 64
Murali S, Damodar S and Sharma K K 1980a Communicated for publication
Murali S, Sharma K K and Bhimasankaram V L S 1980bGRB Natl. Geophys. Res. Inst. Hyderabad 18 121
Nettleton L L 1976Gravity and magnetics in oil prospecting (New York: McGraw-Hill Book Company)
Peters L J 1949Geophysics 14 290
Rabinovich B I and Bukhimastor A F 1962Akad. Nauk SSR, Sibirskoya Otdeleniye. Geologiya-i-Geofizika 1 122
Rabinovich B I 1963Akad. Nauk SSR, Sibirskoya otdeleniye. Geologiya-i-Geofizika 4 109
Rao B S R, Radhakrishna Murty I V and Subba Rao Y V 1971PAGEOPH 85 12
Rao B S R, Prakash Rao T K S, Gopal Rao D and Kesavamani M 1972PAGEOPH 99 120
Rao S V S, Murali S and Bhimasankarara V L S 1981Proc. Indian Acad. Sci. (Earth Planet. Sci.) 90 75
Saphuzhak Y S 1967Higher derivatives of electrical potential in geophysical prospecting (in Russian) (Kiev: Nankovo Dumka)
Saphuzhak Y S, Shakotko V I and Saphuzhak A F 1969 Novyye iss Ledavaniya na UkraineKiev. Akad. Nauk Ukrain SSR Inst. Geofiziki p. 132
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sabnavis, M., Sharma, K.K. A second derivative method of resistivity sounding. Proc. Indian Acad. Sci. (Earth Planet Sci.) 91, 253–262 (1982). https://doi.org/10.1007/BF02841684
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02841684