EARLY AND MIDDLE PLEISTOCENE POLLEN STRATIGRAPHY FROM BRITISH-GEOLOGICAL-SURVEY BOREHOLE 81 26, FLADEN GROUND, CENTRAL NORTH-SEA/

Eight pollen assemblage zones are identified in a 200 m deep borehole (BH 81/26) from the Fladen Ground in the North Sea (British sector). P ollen stratigraphical data support interpretations of this core based on a previous multidisciplinary study (Sejrup et al., 1987). Pollen zo nes II to IV, which occur below the Bruhnes/Matuyama boundary, may cor relate with the Bavelian complex and possibly include two interglacial stages, while pollen zones V to VIII indicate predominantly cold cond itions.