Hackley Bay Photo
Billion-year-old coastal rocks, Hackley Bay
Dist:0.2km
As per the British Geological Society interactive map: Collieston formation (pelite, semipelite And psammite): metamorphic bedrock formed approximately 541 to 1000 million years ago. Originally sedimentary rocks formed in deep seas and later altered by low-grade metamorphism.
© Bill Harrison and licensed for reuse under this Creative Commons Licence
Taken at: Hackley Bay, North Scotland
Date taken / added: 6th Oct 2019