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paleomagnetism
[ pey-lee-oh-mag-ni-tiz-uhm or, especially British, pal-ee- ]
/ ˌpeɪ li oʊˈmæg nɪˌtɪz əm or, especially British, ˌpæl i- /
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noun
Geology. magnetic polarization acquired by the minerals in a rock at the time the rock was deposited or solidified.
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Compare remanent magnetism.
OTHER WORDS FROM paleomagnetism
pa·le·o·mag·net·ic [pey-lee-oh-mag-net-ik or, especially British, pal-ee-], /ˌpeɪ li oʊ mægˈnɛt ɪk or, especially British, ˌpæl i-/, adjectiveWords nearby paleomagnetism
paleolimnology, paleolith, Paleolithic, Paleolithic man, paleology, paleomagnetism, paleon., paleontol., paleontologist, paleontology, paleopathology
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Scientific definitions for paleomagnetism
paleomagnetism
[ pā′lē-ō-măg′nĭ-tĭz′əm ]
The fixed orientation of a rock's magnetic minerals as originally aligned at the time of the rock's formation. Paleomagnetism is usually the result of thermoremanent magnetization (magnetization that occurs in igneous rocks as they cool). Examination of the paleomagnetism of the Earth's ocean floors revolutionized the field of geology by providing evidence for the existence and movement of tectonic plates. See Note at magnetic reversal.
The scientific study of such magnetic remanence.
The American Heritage® Science Dictionary
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