The Earth's Inner Core
Revealed by Observational Seismology

The first comprehensive review of past and contemporary research on the Earth's inner core from a seismological perspective.

Hrvoje Tkal?i? (Author)

9781107037304, Cambridge University Press

Hardback, published 2 February 2017

234 pages, 59 b/w illus. 24 colour illus.
25.2 x 17.8 x 1.5 cm, 0.7 kg

'… the key points and important results presented in the book can be perceived without a deeper understanding of [the] mathematics, which makes the text appropriate for all interested readers with a scientific approach to the topic. Due to the considerable extent of scientific results presented and referenced, it can also be recommended to students and experts in the field.' Manuel Vogel, Contemporary Physics

The inner core is a planet within a planet: a hot sphere with a mass of one hundred quintillion tons of iron and nickel that lies more than 5000 kilometres beneath our feet. It plays a crucial role in driving outer core fluid motion and the geodynamo, which generates the Earth's magnetic field. This book is the first to provide a comprehensive review of past and contemporary research on the Earth's inner core from a seismological perspective. Chapters cover the collection, processing and interpretation of seismological data, as well as our current knowledge of the structure, anisotropy, attenuation, rotational dynamics, and boundary of the inner core. Reviewing the latest research and suggesting new seismological techniques and future avenues, it is an essential resource for both seismologists and non-seismologists interested in this fascinating field of research. It will also form a useful resource for courses in seismology and deep Earth processes.

Preface
1. On the history of inner core discovery
2. Seismological tools to study the inner core
3. Inner core surface and its interior
4. Inner core anisotropy
5. Inner core rotational dynamics
6. The limitations, the obstacles, and the way forward
Appendix A. Transmission/reflection coefficients for the flat inner core boundary
Appendix B. The angle between PKIKP waves and the rotation axis of the Earth
Appendix C. P-wave velocity in a transversely isotropic inner core
Appendix D. Transdimensional Bayesian inversion
References
Index.

Subject Areas: Geology & the lithosphere [RBG], Volcanology & seismology [RBC], Earth sciences [RB], Geophysics [PHVG]