Archaeomagnetic database from Bulgaria: the last 8000 years

In 1992 (Kovacheva, 1992) we published the updated archaeomagnetic results from Bulgaria for the last 2000 years where it was mentioned that the compilation of data is a continuous process of accumulation of new data and revision of the previous ones. This is especially true for the old intensity studies considering the newly obtained experimental results of rock magnetic studies of Ozdemir and Dunlop (Ozdemir, O., Dunlop, D., 1993. Chemical remanent magnetisation during gammaFeOOH phase transformations. J. Geophys. Res. 98 (B3), 4191-4198) and new insights about the reliability of the archaeointensity data (reference cited below). Another uncertainty comes from the age estimates of the studied localities. This paper presents a new synthesis of the Bulgarian archaeomagnetic data for the last 2000 years along with newly revised age and an extent of the database to 8000 years before present. (C) 1997 Elsevier Science B.V.