Pollen chronology of the Glen Roy-Loch Laggan proglacial lake drainage

Abstract

Synopsis Palynological evidence confirms that the Glen Roy-Loch Laggan proglacial lakes were impounded by ice of the Loch Lomond (Late Devensian) readvance. The highest stage of the lakes persisted until the time of the juniper pollen zone; the lowest stage had disappeared by the time of the beginning of the birch pollen zone. Drainage from the Pattack basin continued to discharge eastward through the Feagour, the lowest of the lake overflow channels, until the time of the birch-hazel pollen zone.