Шетено (Sheteno)

Spore-pollen analysis revealed the regional features of the vegetation communities for­ming. The percentages of all the AP and NAP taxa have been calculated of the total pollen sum AP+NAP (AP = pollen sum of trees and shrubs; NAP = pollen sum of upland herbs). The percentages of the pteridophytes and aqu­atics have been calculated of the total pollen sum. Indication of the pollen zones has been fulfilled according to the scheme of Makhnach et al. (1981) with some corrections based on more recent investigations.

DESCRIPTION OF THE POLLEN ZONES

MURAVIAN (=EEMIAN, MIKULINSKI) INTERGLACIAL

mr3 — Pinus-Betula-Quercus I Pinus-Betula-Carpinus

In general, a domination of Pinus and Betu­la as well as a significant participation of the NAP at the background of the permanent Quercetum mixtum occurrence are charac­teristic of this zone. In the Sheteno section (southern Belarus) increased values of Pinus are recorded.

mr4 — Quercus-Pinus-Corylus

Maximum of Quercus along with an increas­ing percentages of Corylus and decreasing participation of Pinus is a common feature of this zone over the whole study area. In Sheteno, an increased Pinus content and signi­ficant amount of Alnus are fixed. The proportion of Corylus increases from the southeast to the west.

mr5 — Corylus-Tilia-Alnus

Arboreal species dominate while the herb plants are few. Synchronous maxima of Tilia and Alnus, preceded by the maximum of Corylus are characteristic of this zone. In most sections these events take place against a background of an increasing role of Carpinus. In Sheteno this zone is thin, the maximum of Tilia is not distinct and synchron­ous to the decline of Pinus and growing role of Carpinus.

mr6 — Carpinus

The principal feature of this zone is the maximum of Carpinus, the presence of Picea and, increase of its percentage by the end of the zone. In Sheteno, Alnus, Corylus, Pinus and Quercus are continuously present, the role of Tilia falls and of Picea increases.

mr7 — Pinus-Carpinus-Corylus I Pinus-Corylus-Quercus-Carpinus

This zone is characterized by the maximum of Pinus and by the second (small) peak of Carpinus. In Sheteno, Betula, Picea, Corylus and Alnus are present, sporadic grains of Quercus and Ulmus are recorded, and an appearance of the NAP (Poaceae) is observed. Sphagnum and Polypo­diaceae dominate among spores.

Shalaboda V.L. Characteristic features of Muravian (Eemian) pollen succession from various regions of Belarus // Acta Paleobotanica. 41(1). 2001. Pp. 27-41.