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Antiphase domains and reverse thermoremanent magnetism in ilmenite-hematite minerals

January 1, 1981

Examination of synthetic ilmenite-hematite samples by transmission electron microscopy has for the first time revealed the presence of well-defined antiphase domains and antiphase domain boundaries in this mineral system. Samples quenched from 1300??C have a high density of domain boundaries, whereas samples quenched from 900??C have a much lower density. Only the high-temperature samples acquire reverse thermoremanent magnetism when cooled in an applied magnetic field. The presence of a high density of domain boundaries seems to be a necessary condition for the acquisition of reverse thermoremanent magnetism.

Publication Year 1981
Title Antiphase domains and reverse thermoremanent magnetism in ilmenite-hematite minerals
Authors C.A. Lawson, G.L. Nord, Eric Dowty, R.B. Hargraves
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Index ID 70011940
Record Source USGS Publications Warehouse
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