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Plate reconstruction is the process of reconstructing the positions of tectonic plates relative to each other (relative motion) or to other reference frames, such as the Earth's magnetic field or groups of hotspots, in the geological past.
Magnetochemistry – Study of magnetic properties of chemical compounds; Paleoclimatology – Study of changes in ancient climate; Plate reconstruction – Process of reconstructing the positions of tectonic plates in the geological past; Rock magnetism – The study of magnetism in rocks
The geometric fit between continents, such as between west Africa and South America is still an important part of plate reconstruction. Magnetic stripe patterns provide a reliable guide to relative plate motions going back into the Jurassic period. [89]
Geomagnetism – study of the Earth's magnetic field, including its origin, telluric currents driven by the magnetic field, the Van Allen belts, and the interaction between the magnetosphere and the solar wind. Mathematical geophysics – development and applications of mathematical methods and techniques for the solution of geophysical problems.
The observed magnetic profile for the seafloor around a mid-oceanic ridge agrees closely with the profile predicted by the Vine–Matthews–Morley hypothesis. The Vine–Matthews–Morley hypothesis , also known as the Morley–Vine–Matthews hypothesis , was the first key scientific test of the seafloor spreading theory of continental drift ...
Rock magnetic methods are used to get a more detailed picture of the source of the distinctive striped pattern in marine magnetic anomalies that provides important information on plate tectonics. They are also used to interpret terrestrial magnetic anomalies in magnetic surveys as well as the strong crustal magnetism on Mars.
A crew works to repair damaged power lines in the River Arts District in Asheville, North Carolina, on September 30, 2024. - Loren Elliott/The New York Times/Redux Stein’s victory coattails will ...
Nevertheless, the magnetic poles rarely stray far from the geographic poles of the planet; rather they tend to follow true polar wander. Therefore, the concept of apparent polar wander is useful in plate tectonics, since it can retrace the relative motion of continents, as well as the formation and break-up of supercontinents.