publication . Article . 2007

The remanent magnetization of ancient struck coins

L. P. Goulpeau; Philippe Lanos; L. Langouet;
Restricted English
  • Published: 23 Aug 2007
  • Publisher: HAL CCSD
  • Country: France
Magnetic and other measurements are reported for the Guehenno II Gallo-Roman hoard (56-France) which, amongst several thousand Tetricus antoniniani, contains 275 coins struck with the same dies. The orientation of the remanent magnetization is systematically directed outwards from the obverse confirming the identity of the anvil die with the obverse. The magnetization vector is statistically distributed around the vertical axis giving no indication of the geomagnetic inclination at the time of striking. Consequently ancient struck coins cannot be used for dating. The origin of the remanent magnetization was also investigated.
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free text keywords: archeomagnetism, coins, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, Archaeology, History, remanent magnetization, [ SHS.ARCHEO ] Humanities and Social Sciences/Archaeology and Prehistory, Vertical axis, Remanence, Archaeology, Geology, Hoard, Magnetization, Geophysics, Earth's magnetic field
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