NS3679 : Traces of ancient mud cracks

taken 7 years ago, near to Renton, West Dunbartonshire, Great Britain

Traces of ancient mud cracks
Traces of ancient mud cracks
For context, see NS3679 : Carman Quarry, in which this large stone appears below the centre of the image.

The upper part of the stone, displaying this unusual pattern, measures about 1.3 metres from side to side, and about 1 metre from its lower to its upper end. Its surface here would originally have been smooth, as in the lower left section of the photograph, but some layers have fallen off, exposing a network of ridges.

This rock was formed by the deposition of sand on mud cracks; it has therefore preserved, in the form of a natural cast, the shape of those cracks. A larger and more impressive example can be seen, lying flat, not far away: see NS3678 : Traces of ancient mud cracks.

I have not encountered any reports of these features elsewhere, but they are an interesting geological curiosity.
The former Fairy Knowe Quarry :: NS3779
Red sandstone was quarried here. The site was formerly a small hill called Fairy Knowe, but it became a quarry at the end of the nineteenth century; later maps call it Carman Quarry. It has long been disused. See LinkExternal link for an annotated satellite view putting this site in its geological context. The name "Fairy Knowe" perhaps alludes to the same superstitions as were associated with Havoc Cave: LinkExternal link
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NS3679, 44 images   (more nearby )
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Date Taken
Thursday, 17 March, 2011   (more nearby)
Monday, 4 April, 2011
Geographical Context
Geological interest 
Image Buckets ?
Near (from Tags)
Carman Muir  Carman Hill 
Geological feature   (more nearby)
Subject Location
OSGB36: geotagged! NS 3692 7901 [10m precision]
WGS84: 55:58.5774N 4:36.9030W
Camera Location
OSGB36: geotagged! NS 3695 7902
View Direction
South-southwest (about 202 degrees)
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