The BGS Lexicon of Named Rock Units — Result Details
Ellerker Limestone [Obsolete: use LLL]
Computer Code: | ELL | Preferred Map Code: | notEntered |
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Status Code: | Full | ||
Age range: | Bajocian Age (JB) — Bajocian Age (JB) | ||
Lithological Description: | [Obsolete: use LLL] Limestone, hard, porcellanous, silty, with fine-grained shell debris (silty, shell fragmental wackestone). | ||
Definition of Lower Boundary: | Quasi-conformable contact between predominantly calcareous mudstone and siltstone of underlying part of Raventhorpe Beds and porcellanous limestone of this informal Bed. | ||
Definition of Upper Boundary: | Quasi-conformable contact between porcellanous limestone of this informal Bed and predominantly calcareous mudstone and siltstone of the overlying part of the Raventhorpe Beds. | ||
Thickness: | 0 to c. 1 m. | ||
Geographical Limits: | BGS 1:50 000 sheets 80, 89; northernmost Lincolnshire (the Humber area), northwards to the Market Weighton area. | ||
Parent Unit: | none recorded or not applicable | ||
Previous Name(s): | Hydraulic Limestones [Obsolete Name And Code: See SMD, BNT, ELL]
(HYDL)
Ellerker Limestone Member [Obsolete Name and Code: Use ELL] (-230) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | Section at waterfall in Ellerker Beck, Ellerker, near South Cave, East Riding of Yorkshire. ?field notes, BGS archive (designated by Gaunt et al., 1992, p.48, but no description given). | ||
Reference Section | BGS Cockle Pits Borehole near South Cave, East Riding of Yorkshire. SE92NW/60. 10.67 to 11.61m depth. | ||
Type Area | Ellerker, near South Cave, East Riding of Yorkshire. | ||
Reference(s): | |||
Gaunt, G D, Ivimey-Cook, H C, Penn, I E and Cox, B M. 1980. Mesozoic rocks proved by the Institute of Geological Sciences boreholes in the Humber and Acklam areas. Report of the Institute of Geological Sciences, No. 79/13. | |||
Gaunt, G D, Fletcher, T P and Wood, C J. 1992. Geology of the country around Kingston upon Hull and Brigg. Memoir of the British Geological Survey, sheets 80 and 89 (England and Wales). 172pp. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E080 |