Archaeomagnetic study and rehydroxylation dating of fired-clay ceramics
- 213 Downloads
Archaeomagnetic study and rehydroxylation dating of fired-clay ceramics from Great Britain, Spain, and the Black Sea region is carried out in order to refine the dating of the material from the archaeological monuments used in the archaeomagnetic research for determination of the elements of the main magnetic field during the past few millennia. The archaeomagnetic analysis revealed the factors responsible for deviations of the rehydroxylation dating from the true values. They include the processes of weathering (magnetite transformation into hydroxides) and secondary magnetization (e.g., magnetization in a fire). In order to bring the dating closer to the true values, corrections for the influence of the distorting factors are suggested. The data on the geomagnetic field intensity derived from the magnetization of the studied material are used as independent criteria to validate the dating of the field.
When applied to the fired clay material with reliable dating, the rehydroxylation method provides the estimates of the temperature in the region of archaeological monuments during the past.
KeywordsMagnetite Solid Earth Archaeological Material Geomagnetic Intensity Geomagnetic Field Intensity
Unable to display preview. Download preview PDF.
- Burakov, K.S., Determination of Ancient Geomagnetic Field from Magnetically Anisotropic Samples, Izv. AN SSSR, Fiz. Zemli, 1981, no. 11, pp. 116–120.Google Scholar
- Burakov, K.S. and Nachasova, I.E., Correction for Chemical Variations during Heating at Determination of Intensity of Ancient Geomagnetic Field, Izv. AN SSSR. Fiz. Zemli, 1985, no. 10, pp. 93–96.Google Scholar
- Burakov, K.S., Nachasova, I.E., and Petrova, G.N., The Geomagnetic Field Intensity in the Baikal Region during the Last Millennia, Geomagn. Aeron., 2000, vol. 40, no. 2, pp. 219–224.Google Scholar
- Burakov, K.S., Nachasova, I.E., Na-jeira, T., Molina, F., and Camara, J.A., Geomagnetic Intensity in Spain in the Second Millennium BC, Izv. Phys. Earth, 2005, vol. 41, no. 8, pp. 622–633.Google Scholar
- Nachasova, I.E and Burakov, K.S., The Variations in the Geomagnetic Field in Central Asia during Two Last Millennia. The Analysis of the World Data, Geomagn. Aeron., 1995, vol. 30, no. 6, pp. 150–157.Google Scholar
- Nachasova, I.E., Characterization of Variations in the Intensity of Geomagnetic Field from Archaeomagnetic Data, Doctoral (Phys.-Math.) Dissertation, Moscow: Schmidt Inst. Phys. Earth, Rus. Acad. Sci., 1998.Google Scholar
- Nachasova, I.E., Burakov, K.S., and Bernabey, J., Geomagnetic Field Intensity Variation in Spain, Izv. Phys. Earth, 2002, vol. 38, no. 5, pp. 371–376.Google Scholar
- Thellier, E. and Thellier, O., Geomagnetic Intensity in the Historical and Geological Past, Izv. AN SSSR, Ser. Geofiz., 1959, no. 9, pp. 1296–1331.Google Scholar
- Wilson, M.A., Carter, M.A., Hall, C., Hoff, W.D., Ince, C., Savage, S.D., McKay, B., and Betts, I.M., Dating Fired-Clay Ceramics Using Long-Term Power Law Rehydroxylation Kinetics, Proc. R. Soc. A., 2009, pp. 1–9. doi: 10.1098/rspa.2009.0117Google Scholar