'Donkey Rock', Broughton-in-Furness
Introduction
The photograph on this page of 'Donkey Rock', Broughton-in-Furness by Humphrey Bolton as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
'Donkey Rock', Broughton-in-Furness
Image: © Humphrey Bolton Taken: 26 Jan 2004
By the roadside at SD210867, Bush Green Quarry has a cliff-face 70m across and 10m high that shows 'sole structures' in the almost vertically bedded turbidite sandstones and mudstones (Coniston Grits) of Silurian age, about 400 million years old. These are knobbly lumps on the surface of the rock, formed by the deposition of hard material on the sea-bed by deep-water currents, and there are more than 1800 of them, mainly types known as flute and load casts, covering six bedding planes (see www.ougsnw.org.uk/photo_gallery/Geoscenes/ Foxfield.html). Further information see Moseley 1978 Geology of the Lake District, p 143, Yorkshire Geological Society.
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
54.268107
Longitude
-3.206819