SUMMARY

Descriptions and interpretations of two previously unrecorded slope-foot debris accumulations in the Skiddaw upland of the northern Lake District are presented. Debris ridges below Ling Thrang Crags in the River Caldew valley are considered to be part of a terminal moraine constructed by a Loch Lomond Stadial (LLS) (11-10 k 14C years BP) glacier. Acceptance of a glacial origin increases the number of identified glaciers and area covered by LLS ice in this part of the Lake District. Immediately west of the glacier site there are periglacial boulder accumulations, regarded as contemporary with the glacier. A debris bench in Grainsgill valley is interpreted as a composite feature consisting of alluvial valley-fill sediments and debris supplied from the flanking hillside. Later, fluvial incision also helped to shape the bench. Construction of the bench followed removal of Dimlington Stadial ice (by 14.5-13.5 k 14C years BP) and probably continued throughout the Windermere Interstadial (14-11 k 14C years BP) and LLS. The bench is regarded as a paraglacial phenomenon. Similar composite forms have yet to be reported from elsewhere in the uplands of the British Isles, although the bench is unlikely to be unique.

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