Bouguer Gravity Regional and Residual Separation: Application to Geology and Environment

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Springer Science & Business Media, Mar 5, 2012 - Science - 250 pages
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The process of regional-residual separation in potential field is age-old. Broadly, there are two techniques for regional-residual resolution, viz., graphical and analytical. Both the techniques have their own respective shortcomings. In this book, the authors have described the technique based on finite element method in which only eight (or twelve) nodal observed gravity values are used for the regional computation, thereby eliminating the possible contamination of anomalous fields and also the technique does not assume an explicit model and physical properties like density of rocks etc. in the regional computation. The book discusses the advantages of this technique viz., it is not site-specific; the computation is independent of any prior assumptions as to the form and depth of shallow or deeper structures; it can handle data distributed at random or on a regular grid on the map space; and the neighbouring surveys join smoothly.

The book focuses on application of this new technique which has been demonstrated in different fields, such as hydrocarbon, minerals and groundwater, structural studies, earthquake and engineering studies and impact structures.

 

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Contents

Introduction
1
Regional and Residual Gravity Anomalies The Existing Issues
9
New Computational Schemes
19
Applications to Geological and Environmental Problems Hydrocarbon
36
Applications to Geological and Environmental Problems Minerals
68
Gravity Method in Structural Studies
133
Isostatic Studies and Vertical Crustal Movements
160
Earthquake Studies and Engineering Applications
203
Gravity Studies on Impact Structures
232
Fortran Program for RegionalResidual Separation by Finite Element Method
259
C++ Program for RegionalResidual Separation by Finite Element Method
262
References
267
Index
285
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