Redeposited pollen in recent and Holocene sediments of the Caucasus mountains

Abstract

A detailed investigation of Holocene sediments of various facies has revealed some regularities in the distribution of redeposited pollen for various periods of the Holocene. The greatest amount of redeposited pollen is observed in the boreal and sub-boreal sediments of the Black Sea shelf. Smaller quantities of redeposited pollen are found in the abyssal parts of the sea and in alluvial formations. Single taxa are noticeable in Holocene peat bogs and lakes of the Colchis lowland, in the lowlands of East Georgia. Redeposition is scarcely noticeable in lagoons, buried soils, raised bogs and zoogenic formations. It is necessary to distinguish between primary and redeposited pollen in order to avoid mistakes when reconstructing vegetation of the past epochs in mountainous regions. © 1996 Taylor & Francis Group, LLC.