The BGS Lexicon of Named Rock Units — Result Details
Hibaldstow Limestone [Obsolete: use ULL]
| Computer Code: | HIL | Preferred Map Code: | HiL |
|---|---|---|---|
| Status Code: | Index Level | ||
| Age range: | Bajocian Age (JB) — Bajocian Age (JB) | ||
| Lithological Description: | [Obsolete: use ULL] Limestone, high-energy ooidal and shell bioclastic grainstones, with "non-oolitic limestone containing spar-filled shells" (probably secondarily recrystalized and micritized limestone) at base. | ||
| Definition of Lower Boundary: | More or less disconformable contact with dominantly micritic low-energy limestone, or mudstone of the Lower Lincolnshire Limestone Member (Kirton Cementstone Beds), overlain by ooidal and bioclastic grainstones. | ||
| Definition of Upper Boundary: | Disconformable, commonly markedly eroded and karstified contact between ooidal and bioclastic grainstones and non-calcareous, non-marine sandstone, siltstone and mudstone of the overlying Rutland Formation (Thorncroft Sand Member). | ||
| Thickness: | c. 6 to 13 m. | ||
| Geographical Limits: | BGS 1:50 000 sheets 80 and 89 or (for Hibaldstow Beds) North Lincolnshire, from Lincoln to the Humber. | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Hibaldstow Limestone Member [Obsolete Name and Code: Use HIL]
(-2239)
Hibaldstow Oolite (-959) Hibaldstow Limestones [Obsolete Name and Code: Use HIL] (-4706) Hibaldstow Limestones Member [Obsolete Name and Code: Use HIL, ULL] (-4707) |
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| Alternative Name(s): | Upper Lincolnshire Limestone Member |
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| Stratotypes: | |||
| Reference Section | Hibaldstow Airfield No 1 Borehole. (SE90SE/67) 15.24 to 25.33m depth. Gaunt et al. 1992. Fig.20. | ||
| Type Area | Hibaldstow, North Lincolnshire. Gaunt et al., 1992. | ||
| Reference(s): | |||
| Kent, P E. 1966. A review of the correlation of the Lincolnshire Limestone (Inferior Oolite). Transactions of the Leicester Literary and Philosophical Society, Vol.60, 57-69. | |||
| Ussher W A E, Fox-Strangways, C, Cameron, A C G, Reid, C and Jukes-Browne, A J. 1890. The Geology of parts of Lincolnshire and South Yorkshire. Memoir of the Geological Survey of Great Britain, Old series Sheet 86. (England and Wales). | |||
| 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 E089 | |||