LITHOSPHERE, 2002, No. 16, p. 58

Sediments from the sublittoral zone of the lakes Teklits and Okono were studied using the palynological method. The pollen analysis has shown that the basal layers of the lakes were deposited in the Late Dryas (10,900-10,200 yrs. BP) and Allerod (11,800-10,900 yrs. BP). The stratigraphic division was based on the cor-relation of the above sediment with well-dated neighbouring cores. The vegetation evolution and palaeoclimatic conditions in the Upper-Berezina glaciofluial plain have been reconstructed since the Late Glaciation till nowa-days. Pollen species reflecting the human impact and occurring from ca 4,200 yrs. BP permit a conclusion about the economic activities of ancient tribes in the Neolithic and Early Bronze ages, that was mainly based on "slash-and-burn" agriculture, the cattle breeding being of much smaller importance. Hunting, fishing and gathering were also, in common practice.

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