HR: 16:30h
AN: GP22B-03    [PDF]
TI: Microwave archaeointensity results from Egyptian ceramics
AU: * Shaw, J
EM: shaw@liv.ac.uk
AF: University of Liverpool, Geomagnetism Laboratory, Liverpool, L69 7ZE United Kingdom
AU: Odah, H
EM: hatemodah@yahoo.com
AF: National Research Institute of Astronomy and Geophysics, Department of Geomagnetism, Helwan, 11722 Egypt
AU: Walton, D
EM: waltond@mcmail.CIS.McMaster.CA
AF: McMaster University, Department of Physics and Astronomy, Hamilton, ONT L8S 4M1 Canada
AU: Hill, M
EM: mimi@liv.ac.uk
AF: University of Liverpool, Geomagnetism Laboratory, Liverpool, L69 7ZE United Kingdom
AU: Yang, S
AF: University of Liverpool, Geomagnetism Laboratory, Liverpool, L69 7ZE United Kingdom
AB: Using microwave power in place of temperature in a Thellier palaeointensity experiment we can avoid laboratory induced thermal alteration and improve the quality of palaeointensity determinations (Hill, Gratton and Shaw, 2002). In the present study we apply the microwave palaeointensity technique to a collection of Egyptian ceramics covering the time interval 3100 BC to 900 AD. We aligned the TRM field to be in the same direction as the NRM direction to avoid the effects of magnetic anisotropy. The new microwave results will be presented and compared to previous results obtained using conventional heating (Odah et al. 1995).
UR: http://www.liv.ac.uk/geomagnetism
DE: 1503 Archeomagnetism
DE: 1521 Paleointensity
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2003 Fall Meeting