The paper represents the results of longstanding archaeomagnetic studies in the Palaeomagnetic laboratory of Geophysical Institute, BAS. These studies are the only way of discovering the past geomagnetic field behaviour and they play an important role for contemporary geomagnetic field models. Revealing the geomagnetic secular variations and their spatial distribution over the Earth’s globe is also of interest for the dynamics of geomagnetic field. The searched characteristics are: declination (D) and inclination (I) given in degrees and the absolute value of the geomagnetic field intensity F, given in μT. The Bulgarian data set covers mostly fully the last 8000 years and represents the longest set of archaeomagnetic determinations in the world. The accumulation of data is a long process requiring the addition of new sites, revision and refinement. We have sampled also some archaeological sites from former Yugoslavia, the data of which are included in our database. These data are the result of a fruitful collaboration between Geomagnetic Institute in Grocka and the Geophysical Institute in Sofia in the area of paleo- and archaeomagnetism some 40 years ago. The highest achievement of the study is that it is brought to practical application for dating in archaeology. Example is given.


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