"Bruce B [Obsolete: use HUGI]"@en . "Hugin Formation"@en . "170.9"^^ . "154.8"^^ . "Defined by a downward transition from marine sandstones and siltstones/mudstones, with minor coals, to more frequently coal-bearing, generally non-marine and volcanic strata (Pentland Formation). The boundary is difficult to pick out in wireline logs."@en . . "Mudstone, sandstone and siltstone and trace coal and conglomerate. Stratified bedrock. Occurs offshore. Deposited during the Bajocian Age - to - Oxfordian Age (Jurassic Period) (170.9-154.8 Ma BP)."@en . "Massive Sandstone [Obsolete: use HUGI]"@en . "Bruce Upper Sands [Obsolete: use HUGI]"@en . . "The formation comprises sandstones, siltstones and mudstones with minor coal and conglomerates. It is variably fossiliferous with both non-marine and marine shelly faunas. \r\n\r\nBeryl Embayment: Very fine- to fine-grained sandstone in two main facies: sharp based upward fining, cross-bedded, more or less bioturbated sandstones; uniformly graded rippled, bioturbated and possibly hummocky cross-laminated sandstones. \r\n\r\nSandstones are shelly in places and interbedded with siltstones (which are more common in the lower part of the formation). Lenticular bedded siltstones are present, associated with thin coals and bioturbated, sandy siltstones and thin beds of very fine-grained, burrowed sandstones. Two thin lag conglomerates occur, one at the base and one in the middle part of the formation. \r\n\r\nSouth Viking Graben: Interbedded sandstones and siltstones, often containing bivalve debris. Sandstones are sharp based, fine upwards from medium to fine grained and often bioturbated. Coals occur at some intervals. In Quadrant 16, the formation comprises very fine- to fine-grained, argillaceous, bioturbated, ripple and parallel laminated, upward coarsening sandstones interbedded with upward fining, cross-bedded sandstones, grey mudstones, coals and pebble lag deposits. In the extreme south of the Viking Graben the formation is dominated by sandstones with sporadic thin coal seams."@en . . . . "HUGI"@en . . "stable"@en . "Up to c. 300 m."@en . "Angus Sands [Obsolete: use FLMR, HUGI]"@en . . . . . . "Sand/Shale Unit [Obsolete: use HUGI]"@en . "Fulmar Formation"@en . "The upper boundary is characterised by the downward transition from mudstones and siltstones (Heather Formation) to sandstones with variable amounts of interbedded siltstone and mudstone. The boundary coincides with a down-section decrease in gamma values and an increase in velocity."@en . . . "Hugin Formation"@en . . "Bruce A [Obsolete: use HUGI]"@en . "Young Upper Beryl Sandstone [Obsolete: use HUGI]"@en . . "Upper Beryl Sand [Obsolete: use HUGI]"@en . . "Beryl Formation [Obsolete: use HUGI]"@en .