| Thermochemical remanent magnetization and thermal remanent magnetization: comparison in a basalt. | |
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MedLine Citation:
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PMID: 17799299 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Recent studies have shown that the remanent magnetization carried by an extrusive igneous rock may not be entirely thermal remanent magnetization (TRM). Some may be thermochemical remanent magnetization (TCRM) acquired by the rock at temperatures at least as low as 300 degrees C during oxidation of the contained titanomagnetite grains. Results from a study of a set of basaltic samples from one locality indicate that the intensity of TCRM acquired by a sample in a known magnetic field is equal to that of TRM subsequently produced in the same sample in the same field. On the assumption that the samples we studied are not magnetically unique, we tentatively conclude that paleointensity studies are valid in spite of the presence of TCRM, as long as the rock acquired the magnetization during the initial cooling. |
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Authors:
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K Kellogg; E E Larson; D E Watson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 170 ISSN: 0036-8075 ISO Abbreviation: Science Publication Date: 1970 Nov |
Date Detail:
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Created Date: 2010-06-07 Completed Date: 2010-07-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 628-30 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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