Achaeometrical Research in Hungary II., 1988

PROSPECTING and DATING - Péter MÁRTON: Magnetic directional data for Hungary and their application for archaeomagnetic dating

The average direction from the four data is: D = 12.0+4.9 °, I = 59.4+2.5 °, к = 1405. If it is correct to assume that these features are of approximately the same age, then they can be dated by using the average archaeomagnetic direction of which the declination points to an age before AD 1350, whilst the inclination indicates an age around AD 1200, so the most probable age of these ovens is AD 1200 ± 100 у

. 3./ Oven from Óbuda, 38-42 Bécsi Street. Excavation by P. Bertin, Aquincum Museum, 1996. Estimated age: end of the AD 1

st century - beginning of A. D. 2

nd century (P. В.). Floor samples. Following cleaning by AF and thermal methods the same results were obtained. In particular, thermal cleaning after 420°C yielded: N = 9, D =-8.2+4.0°, 1=63.2+1.8°, k = 812. This example was chosen to show that the technique can fail in time windows within which the definition of the model S V is poor due to the paucity of the reference results. The Roman Period represents such a gap in the Hungarian record, which is still to be filled with well dated data, such as this one, for improving our knowledge about the SV, which will enhance the dating capability of the archaeomagnetic method. Acknowledgements This work was partially supported by OTKA (National Fund for Scientific Research). Title of the project: Archaeomagnetic Dating, no. T 019282. References Fisher, R.A. 1953. Dispersion on a sphere. Proc. R. Soc. London, Ser. A. 217, 295-305. Márton, P. 1995. Variations of the direction of the geomagnetic field in Hungary as revealed by archaeomagnetic measurements (in Hungarian). Magyar Geofizika, 36. 121-124. 73