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A Theoretical Study On The Interpretation Of Resistivity Sounding Data Measured By The Wenner Electrode System

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A Theoretical Study On The Interpretation Of Resistivity Sounding Data Measured By The Wenner Electrode System

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Author : Siew Hung Chan
language : en
Publisher:
Release Date : 1969

A Theoretical Study On The Interpretation Of Resistivity Sounding Data Measured By The Wenner Electrode System written by Siew Hung Chan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Earth resistance (Geophysics) categories.

"This thesis deals with a theoretical study on the interpretation of resistivity sounding data measured by the Wenner electrode system. The objectives of this investigation are twofold: (i) to derive from the apparent resistivity data some suitable functions from which the resistivity and thickness of each member of the sequence of layers composing the earth may be determined, and (ii) to devise suitable methods for analyzing the resulting functions. In this investigation it is shown that the solution of the boundary value problem associated with an n-layered earth model leads to an integral equation for the Wenner electrode system. This integral equation relates the apparent resistivity function to an unknown function, termed the kernel, which is dependent on the layer resistivities and thicknesses. by solving this integral equation one does not obtain the kernel directly, but rather a related function, termed the associated kernel, from which an explicit integral expression for the kernel can be derived. Formulas for numerical integration are developed for the calculation of both the kernel and associated kernel from apparent resistivity data. These formulas are found to give satisfactory results. A numerical-graphical method is developed for the analysis of the kernel and the associated kernel. A further technique based on the principle of logarithmic curve matching is developed for the decomposition of the kernel alone. these methods are found to yield reasonably accurate values for the layer resistivities and thicknesses"--Abstract, leaves ii-iii.

Selected Water Resources Abstracts

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Author :
language : en
Publisher:
Release Date : 1977

Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Water categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1970

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Aeronautics categories.

Detection Of Subsurface Cavities

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Author : Edward R. Bates
language : en
Publisher:
Release Date : 1973

Detection Of Subsurface Cavities written by Edward R. Bates and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Caves categories.

Research has been in progress since July 1970 to determine which geophysical and remote-sensing methods offer the most promising results for detecting subsurface cavities and what might be done to further develop them. Through extensive field tests, it has been determined that none of the standard electrical resistivity procedures give consistently good results. As a result of the initial field testing, a new process of data interpretation has been developed for one specific electrode configuration. Cavities less than 10 feet in diameter and at the depths greater than 100 feet were located. Research is continuing to adapt this process for locating water- or mud-filled cavities.

Geological Survey Bulletin

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Author :
language : en
Publisher:
Release Date : 1972

Geological Survey Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Geology categories.

Bibliography Of Theses In Geology 1967 1970

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Author : Dederick C. Ward
language : en
Publisher: Geological Society of America
Release Date : 1973

Bibliography Of Theses In Geology 1967 1970 written by Dederick C. Ward and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Dissertations, Academic categories.