. . "Mudstone and sandstone with subsidiary basalt, calcareous mudstone, coal, dolostone, lapilli-tuff, lava, limestone and sapropelite. Stratified bedrock. Occurs onshore. Deposited during the Asbian Substage - to - Brigantian Substage (Carboniferous Period) (337-330.3 Ma BP)."@en . "Average thickness is approximately 830m in the Lothians (Cameron and McAdam, 1978, Fig.2)."@en . "The top of this generally non-cyclic unit is defined at the base of the Hurlet Limestone, this marine limestone forming the base of the marine-dominated cyclic successions of the overlying Lower Limestone Formation (Clackmannan Group). The Hurlet Coal is the topmost named bed in the member in West Lothian."@en . . "330.3"^^ . . . . "HON"@en . . "Hopetoun Member"@en . . . "337.0"^^ . . . . . . . . . "Hopetoun Member"@en . "A sequence of black to grey mudstones, grey siltstones, white, grey and pink sandstones and white to pale-greenish grey calcareous mudstones (\"marl\") with thin beds of black to grey oil-shales, coals (Hurlet, Two Foot and Houston seams), grey to white, pure to argillaceous limestones and dolostones that comprise the upper part of the West Lothian Oil-Shale Formation. Some lapilli-tuff beds and thin coal seams are present. The strata are not generally disposed in readily recognizable sedimentary cycles and almost all are of lacustrine and fluvial origins. The member includes the Camps, Under Dunnet, Dunnet, Broxburn, Fells, Grey, Mungle, Raeburn and Fraser shales (oil-shales), and the Dunnet and Binny sandstones that were worked in the past for dimension stone. The limited number of thin marine bands include the Dunnet, Raeburn and Fraser Shell Beds (fossiliferous mudstone beds with a marine fauna) and the Under or Gilmerton Bone Bed Limestone. Lacustrine limestones are present, such as the Barracks Limestone with the regionally important and thick Burdiehouse Limestone at the base of the member. The Bathgate Hills Volcanic Formation (Bathgate Group) basaltic lavas and tuffs are interbedded near the top in the West Lothian and Falkirk areas."@en . . . . . . . . . . . . . . "Upper Oil Shale Group [Obsolete: use SYG]"@en . . . . . . . "stable"@en . . . "Drawn at the base of the Burdiehouse Limestone (Mitchell and Mykura, 1962 p67), resting on strata of the Calders Member. This distinctive limestone is a lacustrine deposit, commonly 6-9m thick, containing abundant fossilised ostracod, plant and fish remains."@en . .