Archaeomagnetic evidence for the age of a Roman pottery kiln from Calahorra (Spain)

The first report of a palaeomagnetic study of a Roman pottery kiln is presented. Individual bricks from the walls of the heating chamber have been sampled and measured in order to determine their palaeomagnetic directions. the measurements indicate that the innermost part of the structure was heated well above the Curie point of haematite, enabling the use of the palaeomagnetic declination and inclination, after the axial dipole correction and fitting to the Paris I(t) curve, to infer the age of the last heating event.