Abstract
IT has been already reported by us1 that the reverse thermo-remanent magnetism of the Haruna rocks is due to magnetic interaction between two different constituents of very small size in ferromagnetic mineral grains, which are mainly composed of ilmenite-hæmatite solid solutions. The production of reverse thermo-remanent magnetization of the Haruna and the similar rocks can be intensified by suitable heat treatment of the samples. This is illustrated in the upper and middle diagrams in Fig. 1.
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References
Nagata, T., Nature, 169, 704 (1951); 172, 850 (1953). Nagata, T., et al., Nature, 172, 630 (1953).
Uyeda, S., J. Geomag. Geoelect., 7, 9 (1955).
Nagata, T., and Uyeda, S., Nature, 175, 35 (1955).
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NAGATA, T., UYEDA, S. Production of Self-Reversal of Thermo-remanent Magnetism by Heat Treatment of Ferromagnetic Minerals. Nature 177, 179–180 (1956). https://doi.org/10.1038/177179a0
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DOI: https://doi.org/10.1038/177179a0
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