Remanent Magnetization of Ancient Bricks

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Abstract

IT has recently been suggested that, in the values of remanent magnetization of clay bricks fired in ancient times, there exists evidence of a secular decrease in the strength of the Earth's magnetic field1,2. It has been further suggested that the effect of such a change in magnetic field on the intensity of cosmic radiation incident upon the Earth would tend to falsify radiocarbon dating procedures based on an assumed constant intensity of cosmic radiation3.

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References

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    Thellier, E., C.R. Acad. Sci., Paris, 222, 905 (1946).

  2. 2

    Thellier, E., C.R. Acad. Sci., Paris, 212, 281 (1941).

  3. 3

    Elsasser, W., Ney, E. P., and Winckler, J. R., Nature, 178, 1226 (1956).

  4. 4

    Thellier, E., C.R. Acad. Sci., Paris, 214, 382 (1942).

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    Thellier, E., C.R. Acad. Sci., Paris, 204, 184 (1937).

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ATWATER, H., ELLICKSON, R. Remanent Magnetization of Ancient Bricks. Nature 181, 404 (1958) doi:10.1038/181404a0

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