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The Physical Principles of Rock Magnetism
- 1st Edition - November 12, 2012
- Editor: Frank Stacey
- Language: English
- Paperback ISBN:9 7 8 - 0 - 4 4 4 - 5 6 9 7 3 - 8
- eBook ISBN:9 7 8 - 0 - 4 4 4 - 6 0 1 7 8 - 0
Developments in Solid Earth Geophysics 5: The Physical Principles of Rock Magnetism explores the physical principles of rock magnetism, with emphasis on the properties of finely… Read more
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Request a sales quoteDevelopments in Solid Earth Geophysics 5: The Physical Principles of Rock Magnetism explores the physical principles of rock magnetism, with emphasis on the properties of finely divided magnetic materials. It discusses the origin and stability of rock magnetizations, the role of remanent magnetism in interpreting magnetic surveys, magnetic anisotropy as an indicator of rock fabric, and the relationship between piezomagnetic changes and seismic activity. Organized into 13 chapters, this volume discusses the properties of solids, magnetite and hematite grains, and rocks with magnetite grains. It also explains various theories and equations in studying rock magnetism. Different types of magnetization are discussed, including their occurrence, significance, and effects. Some of the types include depositional and chemical remanent and thermoremanent magnetization. In addition, this book explains the thermal activation and Piezomagnetic effects, as well as the reversals of remanent magnetism. This reference contains appendices with tables of relevant functions, such as Langevin Function. This book is a valuable source of information for physicists and geologists.
Preface
Chapter 1. Magnetic Properties of Solids
1.1 Introduction
1.2 The spontaneous magnetization of ferromagnetics
1.3 Exchange interactions
1.4 Antiferromagnetism and ferrimagnetism
1.5 The origin of anisotropy and magnetostriction
Chapter 2. Magnetic Minerals
2.1 Ferrimagnetism of magnetite
2.2 Properties of titanomagnetites
2.3 Maghemite
2.4 Oxidized titanomagnetites
2.5 Weak ferromagnetism in hematite
2.6 Titanohematites
2.7 Minor magnetic minerals
Chapter 3. Ferromagnetic Domain Theory
3.1 Magnetostatic energy
3.2 Anisotropy energy
3.3 Magnetostrictive strain energy
3.4 Domain walls
3.5 Single domains and multidomains
3.6 Domain wall moments and Barkhausen discreteness
3.7 Lamellar intergrowths
Chapter 4. Properties of Magnetite Grains and of Rocks containing them
4.1 Coercive force and grain size
4.2 Susceptibility of magnetite grains
4.3 Anisotropy in magnetite-bearing rocks
4.4 Saturation remanence and coercivity of remanence
4.5 Deflection of magnetization in a strongly magnetic layer
Chapter 5. Properties of Hematite Grains
5.1 Anisotropy and coercivity
5.2 Susceptibility of nematite
5.3 Anisotropy and rotational hysteresis in hematite-bearing rocks
5.4 Titanohematites
5.5 The maghemite-to-hematite transition
Chapter 6. Thermal Activation Effects
6.1 The concept of blocking temperature
6.2 Magnetic viscosity and paleomagnetic stability
6.3 Superparamagnetism and superantiferromagnetism
Chapter 7. Thermoremanent Magnetization (TRM)
7.1 Introduction
7.2 Neel's (1955) theory of TRM in single domain grains
7.3 TRM in large multidomains
7.4 The pseudo single domain (grain surface) effect
7.5 Total thermoremanence
7.6 The Koenigsberger ratios
7.7 Partial thermoremanences and the law of additivity
7.8 Thermoremanence in anisotropic rock
Chapter 8. Depositional Remanent Magnetization (DRM)
8.1 The occurrence of DRM
8.2 The detrital magnetization process
8.3 Demagnetization and stability of detrital remanence
8.4 Inclination errors, water flow and other extraneous effects
Chapter 9. Chemical Remanent Magnetization (DRM)
9.1 The paleomagnetic significance of CRM
9.2 The process of chemical magnetization
9.3 The stability of chemical remanence
Chapter 10. Alternating Field Demagnetization and Anhysteretic Magnetization
10.1 The demagnetization method
10.2 Magnetostatic forces in the demagnetization process
10.3 Anhysteretic remanent magnetization (ARM)
Chapter 11. Piezomagnetic Effects
11.1 Effect of stress on susceptibility
11.2 Effects of stress upon remanence
11.3 Magnetostriction and paleomagnetism
11.4 The seismomagnetic and volcanomagnetic effects
Chapter 12. Reversals of Remanent Magnetization
12.1 Evidence for reversals of the geomagnetic field
12.2 Self-reversal mechanisms
Chapter 13. Magnetism in Meteorites
13.1 Meteorite types and meteoritic iron
13.2 Natural remanence in chondritic meteorites
APPENDIX 1. Table of the function F' (α) = 1∫0 x tanh (αx) dx
APPENDIX 2. Table of the function F(α) = 1∫0 1∫0xy tanh (αxy) dx dy
APPENDIX 3. Table of the Langevin Function, L(α) = coth(α) - 1/?αAPPENDIX 4. Table of the function F"(α) = 1/α 1n (sinh α/α)
Bibliography
Name index
Subject Index
- No. of pages: 206
- Language: English
- Edition: 1
- Published: November 12, 2012
- Imprint: Elsevier
- Paperback ISBN: 9780444569738
- eBook ISBN: 9780444601780
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