Limestone pavement, glacier boulder field & Farleton Knott
Looking across a well-developed limestone pavement at Holme Park Fell, South Cumbria to the spectacularly inclined limestone pavement of Farleton Knott (far right), with glacial erratic boulders scattered across the landscape.
On Farleton Knott and the surrounding Holme Park Fell, the erratic boulders are of the same material as the limestone pavements on which they sit. They were transported some distance by a glacier during the last Ice Age, smoothed and rounded by the ice before being deposited on another limestone outcrop.
Limestone pavements were formed during the last Ice Age in the Pleistocene period when moving glaciers scoured bare the surface of the underlying limestone bedrock. The classic pattern of clints (blocks) and grikes (fissures) was produced by the erosive action of overlying soil - such as the moraine deposited by the glacier - and the rainwater that permeated it, enlarging the natural faults in the limestone rock.
Date taken: 24 September 2014.