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Plate tectonics and Earth’s magnetism: a personal viewpoint

Abstract

This is a brief description of the theory of Plate Tectonics, a new method of looking at Earth’s geological evolution developed in the 1960s. The observations that led to the concepts of plate tectonics, sea floor spreading and continental drift are reviewed, with emphasis on studies of the Earth’s magnetic field and its reversal properties. Data on seismology, topography of the ocean floor, the nature of the oceanic crust, and the loss of heat from the ocean floor are also discussed.

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Acknowledgements

I thank Mike Fuller, John Sclater and an anonymous reviewer for important suggestions. I thank Ralf Weger for technical advice, and Keir Becker for stimulating discussions. I also thank students at UC San Diego for inviting me to their conference on the start of plate tectonics, and for Enrico Bonatti for encouragement to seek this method of revealing the history of the start of Plate Tectonics.

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Correspondence to Christopher G. A. Harrison.

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Harrison, C.G.A. Plate tectonics and Earth’s magnetism: a personal viewpoint. Riv. Nuovo Cim. (2021). https://doi.org/10.1007/s40766-021-00013-y

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Keywords

  • Plate tectonics
  • Earth magnetism
  • Seafloor spreading