摘要:

AbstractThe equation which determines the distribution of the stationary potential ϕ in isotropic heterogeneous conductive media with continuously varying local conductivity σ, takes the symmetrical formif we choose as new variablesFor certain grounds (half‐spaces) in which α is a harmonic function (Δα=ΔΨ= 0), it is possible to obtain by means of simple calculations the lines of equal apparent resistivity and the geoelectrical apparent cross‐sections for the usual devices of d.c. prospecting methods. Graphical examples are

ISSN:0016-8025    

DOI:10.1111/j.1365-2478.1970.tb02143.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

AbstractOne of the most important aspects in interpretation of gravity and magnetic anomalies, which generally represent the sum of many effects from the subsoil, is that these effects cannot be adequately separated into individual effective anomalies by means of known procedures. Moreover, the concept itself of anomaly separation must be expanded in a certain sense, because the addition of these effects in the mapped anomalies can arise from many structures situated in the subsoil in different relative positions to one another. A combined procedure is proposed, based on Fourier analysis utilising both periodic complex functions and nonperiodic ones, by use of which the number of individual effective anomalies cumulated in the mapped anomalies is obtained. In order to illustrate the use of this procedure and the advantages of obtaining more valuable informations on geological causes of anomalies, one example from Romania is given.

ISSN:0016-8025    

DOI:10.1111/j.1365-2478.1970.tb02144.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

AbstractThe apparent resistivity is considered as a linear transformation of the potential by an operator in the form of an infinite matrixA. The inverse transformation expresses the potential as a function of the apparent resistivity or of the difference of potentials. It is found by calculation of the inverse matrix‐1A. The relation between apparent resistivities for different arrays is expressed as a product of transformation

ISSN:0016-8025    

DOI:10.1111/j.1365-2478.1970.tb02145.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY

摘要:

Book reviewed in this article:F. Link, Eclipse Phenomena in AstronomyMarine Geophysical Researches–an International Journal for the Study of the Earth Beneath the SeaM. K. Polshkov(editor): Exploration Geophysics, Vol.

ISSN:0016-8025    

DOI:10.1111/j.1365-2478.1970.tb02146.x

出版商:Blackwell Publishing Ltd    

年代:1970

数据来源: WILEY