Combines aspects of geomagnetism, such as archeomagnetism, tectonics, paleomagnetism, and dynamo theory, in an integrated framework, highlighting their interrelationships. Discusses the development and analysis of geomagnetic reversals in detail, emphasizing the role of geomagnetism in studies of the Earth's deep interior, with chapters on the history of the subject, the present geomagnetic field, the time- averaged paleomagnetic field, processes and properties of the Earth's deep interior, and the magnetic fields of the sun, moon, and planets. Includes examples of synthesis of various theories, and mathematical appendices. For observationalists and theoreticians in the field. Annotation c. by Book News, Inc., Portland, Or.