productivity at this time. The occurrence of such a sequence is not considered to be due to any stratigraphical discontinuities as there is no change in sediment lithology, but is thought to represent a significant change in the local vegetation communities
with the disappearance of Juniperus and Empetrum. It is suggested that the sequence is comparable to that found by Walker at Corrydon in Glenshee (1977) and may represent the Bolling-Older Dryas-Allerod chronozones. The vegetation record of the later Loch Lomond Stadial