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By measuring the direction and intensity of magnetism in rocks of different ages, a record of the Earth's magnetic field in the past can be obtained. This 1994 book deals with the particular case of reversals of the Earth's magnetic field. These have played a major role in the d…
General physical properties of the earth -- Origin of the core -- Thermal regime of the earth's core -- Earth's magnetic field -- Constitution of the core -- Cores of other planets.