B. Papp szerk.: Studia Botanica Hungarica 35. 2004 (Budapest, 2004)
Medzihradszky, Zsófia: Palynological investigation of a late Holocene sequence from Southwestern Hungary
Description of the sediment The core was described first in the field. Later in the laboratory, using microscope, we confirmed our determinations of minerogenic size classes and the organic content of the layers. Depth Sediment 0-120 cm loess with clay 120-150 cm muddy sand 150-200 cm brownish gray clay 200-260 cm gray clay 260-350 cm sandy clay 350^20 cm coarse sand, organic remains 420-450 cm muddy sand 450-520 cm mud, occasional macrofossils 520-560 cm muddy sand 560 cm coarse sand with pebbles, high water content The upper 120 cm layer of the sequence sedimented recently, which is verified by the constant and significant presence of neophyte Ambrosia pollen grains. The relatively high sedimentation rate is interprétable by the erosion of the cultivated hillside. Between 120 and 140 cm depth the samples are sterile for pollen, but the high value of the microscopic charcoal content indicates burning in the area. Constant pollen accumulation is detectable from the 140-350 cm depth with low charcoal content. The preservation of pollen is good, in the lower part of this unit the pollen concentration is extremely high. A 70 cm thick layer below 350 cm was rich in organic remains but sterile for pollen. Between 420 and 560 cm the pollen concentration is low, but constant. In some cases macrofossils of Fagus were identified from the samples. Dating The samples were poor in organic remains, only the sample from 465-485 cm depth contained enough macrofossil for absolute, AMS dating. The measure was made in the Poznan Radiocarbon Laboratory. Laboratory code is Poz-4494 and the result of dating is 3,495+30 l4 C yr BP, 1880-1740 cal BC.
