DescriptionDalradian Metasediments near Ormsary in Scotland 1.jpg
English: Dalradian metasediments near Ormsary in Scotland. The rocks show intermittent cleavage. In this sea-washed and eroded outcrop of Dalradian metamorphosed sedimentary rock the layers of finely-bedded sandstone are well displayed. Layers which were more muddy, and of finer-grain have developed a cleavage at a steep angle to the bedding during dynamic metamorphism. The coarser sandstones have a less-reactive composition and have not developed a foliation due to orientated mineral growth to the same degree, and are also more resistant to erosion, resulting in the cleaved layers being more rapidly cut back.
The rocks are of Neoproterozoic age and are part of the Ardrishaig Phyllite Formation, which is part of the Easdale Subgroup of the Argyll Group.
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Jonathan Wilkins and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.