Facies analysis of the Greywacke Conglomerate Formation, Glenbuck, Scotland

The early Devonian Greywacke Conglomerate Formation of the Lanark Basin, southwestern Midland Valley Scotland, has been exposed by a new road cut in Glenbuck area, East Ayrshire, enabling high-resolution sedimentological analysis this unusually high-quality section. This study provides facies sedimentary rocks and comparison with contemporaneous bedrock sections from across Basin adjacent Southern Upland High. Eleven lithofacies are identified, grouped into five associations: aggradational talus cone, progradational debris flow lobe, fan surface aqueous-alluvial deposits, gravel barform deposits. These comprise medial proximal alluvial controlled autogenic scour avulsion along general progradation. Contemporaneous sediments present around Silurian inliers regions Whilst deposits genetically similar, High preserve distinctly more angular clast assemblage, indicating textural immaturity relative to those Basin.