The BGS Lexicon of Named Rock Units — Result Details
Westbury Ironstone Member
| Computer Code: | WI | Preferred Map Code: | WI |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Oxfordian Age (JO) — Oxfordian Age (JO) | ||
| Lithological Description: | Ironstone and limonitic oolite, yellowish brown, shelly. | ||
| Definition of Lower Boundary: | Abrupt upward change from limestone of the Clavellata Beds into ferruginous oolite and ironstone. | ||
| Definition of Upper Boundary: | Fairly rapid upward change from ironstone and ferruginous oolite to smooth grey clay of the Kimmeridge Clay. | ||
| Thickness: | 0-5m | ||
| Geographical Limits: | Westbury (mainly) to Steeple Ashton [905 570]. | ||
| Parent Unit: | Sandsfoot Formation (SDT) | ||
| Previous Name(s): | Westbury Iron Ore [Obsolete Name and Code: Use WI]
(-1276)
Iron Ore of Westbury [Obsolete Name and Code: Use WI] (-4977) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Old Westbury Iron Works. | ||
| Reference(s): | |||
| Arkell, W J. 1933. The Jurassic system in Great Britain. (Oxford: Oxford University Press.) | |||
| Blake, J F, and Huddleston, W H. 1877. On the Corallian rocks of England. Quarterly Journal of the Geological Society of London, Vol. 33, 260-405. | |||
| Woodward, H B. 1895. the Jurassic Rocks of Britain. The Middle and Upper Oolitic rocks of England (Yorkshire excepted). Vol.5. Memoir or the Geological Survey of the United Kingdom. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E281 | |||