"Calcareous mudstone, sandstone and siltstone with subsidiary basalt, basaltic tuff, coal, dolomitic limestone, gypsum-stone, ironstone, limestone, pebbly (gravelly) sandstone, sapropelite, seat-earth sandstone and volcaniclastic rocks (both pyroclastic and reworked volcanic rocks) and trace anhydrite-stone, mugearite, olivine-clinopyroxene-macrophyric basaltic-rock, plagioclase-macrophyric basaltic-rock, plagioclase-olivine-clinopyroxene-macrophyric basalt, plagioclase-olivine-clinopyroxene-macrophyric basaltic-rock, trachybasalt, trachytic-rock and tuff. Bedrock. Occurs onshore. Formed during the Tournaisian Age - to - Visean Age (Carboniferous Period) (359.3-330.3 Ma BP)."@en . "Ballagan Formation, Clyde Sandstone Formation, Strathclyde Group and Lower Limestone Formation (Undifferentiated)"@en . . . . "359.3"^^ . . "330.3"^^ . "Ballagan Formation, Clyde Sandstone Formation, Strathclyde Group and Lower Limestone Formation (Undifferentiated)"@en . "stable"@en . . "BCSL"@en .