BGS Linked Open Data

Coral Rag Member (Cleveland Basin)

Coral Rag Member (Cleveland Basin) ['Limestone, coralliferous, variably ooidal, shelly: member typically formed of two beds: a lower shelly, ooidal, bioclastic packstone/wackestone with coral debris, and an upper very fossiliferous calcilutite with many corals \r\nin life position, coral debris and a shelly fauna of bivalves, gastropods and echinoids. This passes laterally in places into a sparsely fossiliferous, laminated limestone facies.'] ['163.5'] ['Coral Rag Member (Cleveland Basin)'] [''] ['Coral Rag Member (Cleveland Basin)'] [''] [''] ['Non sequence or erosional disconformity: generally a poorly to moderately shelly ooid-limestone (Malton Oolite Member, Coralline Oolite Formation) sharply overlain by a moderately to highly fossiliferous, moderately ooidal, lime-muddy, bioclastic limestone (Coral Rag Member); locally boulders of Malton Oolite may be set in Coral Rag limestone (Wright, 1972, p. 241).'] ['CLRG'] ['stable'] ['157.3'] [''] [''] ['Up to 12m: Tabular Hills 1 to 9m, Hambleton Hills 4.5 to 8m, Howardian Hills 0 to at least 12m.'] ['Coral Rag [Obsolete: use CLRG, WYLS]'] [''] [''] ['Non-sequence: rubbly coralliferous shelly limestone (Coral Rag Member) sharply overlain by silty mudstone and fine-grained sandstone (Newbridge Member) or fine-grained calcareous sandstone (Spaunton Sandstone Member) or unfossiliferous fine-grained limestone (North Grimston Cementstone Member) or mudstone (Langton Clay Member) or sandstone (Limekiln Member), all of Upper Calcareous Grit Formation.'] [''] [''] ['Limestone with subsidiary ooid-limestone. Stratified bedrock. Occurs onshore. Deposited during the Oxfordian Age (Jurassic Period) (163.5-157.3 Ma BP).']