ИСТИНА

This work is a continuation of arheomagnetic studies of ceramics of archaeological complex Veksa in order to obtain data about the geomagnetic field intensity in the Neolithic in the center of the Russian Plain. The archeological complex Veksa is located about 20 km north-east of Vologda town (59.2o N, 39.9o E). The thickness of the cultural layers is about 50 m. 41 samples of ceramics were investigated. Burned materials are fragments of pottery, whose color varies from light brown to dark brown. The age of fragments of pottery was determined from C14 method [Nedomolkina, 2004]. Laboratory studies were carried out using the modified double heating Tellier method [Thellier, Thellier, 1959; Coe, 1978] with the control of possible changes in the ability of the sample to acquire a thermal remanent magnetization by measuring the so-called pTRM check-points and pTRM tail-checks. We used for paleointensity estimations only that points, when difference between tail-check and NRM was less than or equal 10% and when difference between check-point and pTRM was less than or equal 10 %. As a result of the studies data about the change of the geomagnetic field intensity recorded in the fragments of ceramics of the archeological complex Veksa in the ~6200-2000 yr BC were obtained. The geomagnetic field intensity in this time interval varies in the range of ̴20-65 μT and reached the highest values in the last quarter of the V millennium B.C. The obtained data are in good agreement with the data obtained in archaeological monument Sakhtysh.