B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)

Medzihradszky, Zsófia: Holocene vegetation history and human activity in the Kis-Balaton area, Western Hungary

Table 1. Radiocarbon data of Keszthely-Usztatómajor. lab. code depth/cm conv. radiocarbon age (BP) calibrated radiocarbon age (BC) deb-5036 90-100 3730+58 2295-1949 deb-5038 135-150 4073+67 2783-2468 deb-5083 190-200 5559±74 4546-4314 deb-5082 240-250 7154+70 6113-5871 deb-5061 290-300 8021+107 7190-6643 deb-5044 340-350 8864+161 8305-7583 deb-5085 390-400 10657+128 11052-10341 deb-5088 415-430 10239+158 10695-9384 deb-5059 470-485 9574+142 9255-8553 deb-5086 540-550 10380+155 10911-9687 deb-5060 570-580 10835+170 11238-10617 The sedimentation rate in the Holocene period of the profile is 20 yr/cm in average; between 7500 and 2000 BC it is 23 yr/cm, while between 2000-1700 BC the sedimentation is faster, 7 yr/cm deposition speed is observed (Fig. 2). Palynological study For the investigation of anthropogenic influences, according to the archaeological data, the upper 480 cm of the profile was analysed and four local pollen assemblage zones (LPAZ) were determined (Figs 3-4). Table 2. Lithology of Keszthely-Usztatómajor. Depth Description of the sediment 0-50 cm soft black soil 50-90 cm peat with a lot of inorganic material 90-225 cm brown peat with coarse debris 225-270 cm mixed peat with coarse plant remains 270-300 cm peat with very loose structure 300-360 cm dark brown peat with coarse plant remains 360-400 cm peat with fine grey sand and calciferous precipitation 400-480 cm dark brown peat with coarse plant remains