"0.0"^^ . "The Gourock Sand Member of the Clydebank Clay Formation rests, possibly by passage, on the underlying Erskine Formation where developed, and with angular unconformity on older Quaternary sediments or bedrock."@en . "Gourock Sand Member"@en . "GOSA"@en . . "Gourock Sand Formation [Obsolete: use GOSA]"@en . . . . "Ranges from a thin veneer to more than 5m."@en . . "stable"@en . . "Gourock Formation [Obsolete: use GOSA]"@en . . "The Gourock Sand Member of the Clydebank Clay Formation is exposed at surface in the lower Clyde valley and in lower Strathendrick."@en . "Sand with subsidiary clay, gravel and silt and trace peat. Stratified superficial deposits. Occurs onshore. Formed during the Holocene Epoch (Quaternary Period) (.0118-0 Ma BP)."@en . "0.0118"^^ . . "Gourock Sand Member"@en . . "The parent Clydebank Clay Formation consists of four members (qv): from oldest to youngest, the Buchanan Clay, Longhaugh Sand and Gravel, Erskine Clay and Gourock Sand. The Gourock Sand Member is named from Gourock No.2 Borehole [NS 244 777] in the inner Firth of Clyde. Here, the main lithology is grey, fine- to coarse-grained sand. In the Bridgeton Borehole in east Glasgow (Browne and McMillan, 1989a, Figure 18), the uppermost metre consists of brown silt and clay with thin bands and wisps of peat. The basal part is of sandy fine gravel. At Shieldhall [NS 536 664] (ibid, Figure 19), temporary sections showed trough and parallel cross-bedded sands with gravel units. Dark coloured beds rich in organic detritus were about 50cm thick. The lithological association is compatible with an estuarine origin, the range varying from fluvial processes in the east to almost fully marine in the west. The sediments were deposited along very shallow channels probably linked in a anastomosing pattern isolating low lying islands and forming a complex with extensive intertidal flats in the estuary. The stratigraphical relationships and its geographical distribution are illustrated in ibid (Figure 2f, and 3A, B, and C)."@en . .