Achaeometrical Research in Hungary II., 1988

PROSPECTING and DATING - Balázs ERDÉLYI: Data to the chronology of the history of a settlement: thermoluminescent dating of Tapolca chuchill

The burnt clay fraction of Sample 6 was excavated from the northern (No. 2) lime-pit (Square 16). This sample provided the opportunity to test the synchroneity of the two lime-pits. Samples 7-8-9 were taken from the excavated neolithic layer of the vicarage-garden. (See. ERDÉLYI-KÁSA 1990: 131.) The preparation, the radiation and measuring of the samples were carried out by a procedure adopted from our previous tests (ERDÉLYI, KÁSA, BURILLO and KIRÁLY, 1989: 29) The annual beta dose affecting the matrix, as well as the gamma and cosmic radiations, were established by implanting CaS0

4

:Dy TL dosimeters at the site. Table 1 Archaeological and annual doses Sample ED 0 Y+K Dt GT 1 1.185 2.415 0.86 3.275 7.5 2 5.43 2.144 0.86 3.004 7.45 3 2.71 1.914 0.86 2.774 7.39 4 5.72 2.354 0.86 3.214 7.51 5 0.803 2.283 0.86 3.143 7.49 6 0.975 2.113 0.86 2.973 7.45 7 8 20.95 2.12 1.03 3.15 7.34 9 19.09 2.12 1.03 3.15 7.34 Note: as we did not have to perform a supralinear correction ED=AD namely the equivalent dose corresponds to the archaeological dose. The value of ED is defined in „Gy", the beta, gamma, cosmic as well as the total annual dose are given in mGy, while the total error (ÔT) in percent (%). Table 2 TL age and estimated date Sample Age (year) Date of year 1 362 A.D. 1626+27 2 1808 A.D. 181 + 135 977 A.D.1012+72 4 1780 A.D. 209+134 5 256 A.D. 1733+19 6 328 A.D. 1661±25 7 not evaluated 8 6651 4662±488 B.C. 9 6060 4071+445 B.C. Based on the results measured we can link three age-data with the layers of the Tapolca-Churchill that can be written by the formula determined by Fleming as follows: 58