Field Geophysics

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ISBN: 9780470749845 | 0470749849
Cover: Paperback
Copyright: 2/28/2011

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This handy pocketsized field guide provides practical information and assistance to anyone engaged in smallscale surveys on the ground. Fully revised and updated throughout, the Fourth Edition includes comprehensive updates on the use of GPS and new sections on surface wave seismics, borehole geophysics and towed array systems. This has become the standard text in this area for use in the field and the experience of the two authors will ensure the book retains its place as one of the most popular handbooks in applied geophysics. Fully revised and updated to incorporate new developments in the field Focus on quality control of the acquisition of data and basic field interpretation Userfriendly, accessible writing style

John Milsom is the author of Field Geophysics, 4th Edition, published by Wiley. Asger Eriksen is the author of Field Geophysics, 4th Edition, published by Wiley.

Preface to the First Edition	p. ix
Preface to the Second Edition	p. x
Preface to the Third Edition	p. xii
Preface to the Fourth Edition	p. xiv
Introduction	p. 1
What Geophysics Measures	p. 1
Fields	p. 1
Geophysical Survey Design	p. 9
Geophysical Fieldwork	p. 14
Geophysical Data	p. 19
Bases and Base Networks	p. 29
Real-Time Profiling	p. 32
Gravity Method	p. 39
Physical Basis of the Gravity Method	p. 39
Gravity Meters	p. 41
Gravity Reductions	p. 49
Gravity Surveys	p. 52
Field Interpretation	p. 61
Magnetic Method	p. 65
Magnetic Properties	p. 65
The Magnetic Field of the Earth	p. 67
Magnetic Instruments	p. 72
Magnetic Surveys	p. 75
Simple Magnetic Interpretation	p. 81
Radiometric Surveys	p. 85
Natural Radiation	p. 85
Radiation Detectors	p. 90
Radiometric Surveys	p. 92
Electric Current Methods: General Considerations	p. 97
Resistivity and Conductivity	p. 97
Varying Currents	p. 102
Resistivity Methods	p. 109
DC Survey Fundamentals	p. 109
DC Practicalities	p. 117
Resistivity Profiling	p. 122
Resistivity Depth-Sounding	p. 125
Electrical Resistivity Imaging (ERI)	p. 128
Capacitive Coupling	p. 133
SP and IP	p. 137
SP Surveys	p. 137
Polarisation Fundamentals	p. 140
Time-Domain IP Surveys	p. 143
Frequency-Domain Surveys	p. 144
IP Data	p. 146
Electromagnetic Methods	p. 149
Two-Coil CW Systems	p. 149
CWEM Conductivity Mapping	p. 158
Fixed-Source Methods	p. 161
Transient Electromagnetics	p. 165
Remote-Source Electromagnetics	p. 171
Natural Electromagnetic Radiation	p. 171
Controlled-Source Audio-Magnetotellurics (CSAMT)	p. 180
Ground Penetrating Radar	p. 185
Radar Fundamentals	p. 185
GPR Surveys	p. 199
Data Processing	p. 205
Siesmic Methods: General Considerations	p. 211
Seismic Waves	p. 211
Seismic Sources	p. 216
Detection of Seismic Waves	p. 222
Recording Seismic Signals	p. 226
Seismic Reflection	p. 229
Reflection Theory	p. 229
Reflection Surveys	p. 233
Seismic Refraction	p. 241
Refraction Surveys	p. 241
Interpretation	p. 247
Limitations of the Refraction Method	p. 257
Seismic Surface Wave Methods	p. 261
Surface Wave Surveys	p. 261
Data Processing	p. 266
Limitations of the Method	p. 270
Maps, Mapping and GPS	p. 273
Maps and Mapping	p. 273
Satellite Navigation	p. 276
Appendix: Terrain Corrections for Hammer Zones B to M	p. 281
Index	p. 283
Table of Contents provided by Ingram. All Rights Reserved.

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Field Geophysics

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