. "419.0"^^ . "Conglomerate with subsidiary pebbly (gravelly) sandstone and sandstone. Stratified bedrock. Occurs onshore. Deposited during the Early Devonian Epoch (Devonian Period) (419-394.3 Ma BP)."@en . "394.3"^^ . "A poorly sorted, matrix supported, planar bedded, conglomerate with clasts of quartzite, quartz and igneous lithologies."@en . "A sharp contact with the Cromlix Mudstone Formation, which comprises a poorly sorted silty sandstone around Gartartan, commonly with a thin conglomerate bed 30 - 40 m above the junction. North-eastwards, basal Cromlix beds exhibit a transition to a fine-grained, massive, well-sorted sandstone, eg; at Over Shannochil [NS 5428 9930]."@en . . . . "GACO"@en . "Gartartan Conglomerate Member"@en . . "A sharp contact with the purple and reddish-grey, sublithic sandstone of the undivided Ruchill Flagstone Formation."@en . . "From 20 - 25 m between Gartmore House and Shannochill, increasing to 100 m thickness at Lochan Balloch [NN 592 043]."@en . . "stable"@en . . "Gartartan Conglomerate Member"@en .