The BGS Lexicon of Named Rock Units — Result Details
Lower Leintwardine Formation and Upper Leintwardine Formation (undifferentiated)
Computer Code: | LULT | Preferred Map Code: | Lut |
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Status Code: | Index Level | ||
Age range: | Ludfordian Age (SD) — Ludfordian Age (SD) | ||
Lithological Description: | See the Lithology descriptions for the component formations. | ||
Definition of Lower Boundary: | none recorded or not applicable | ||
Definition of Upper Boundary: | none recorded or not applicable | ||
Thickness: | none recorded or not applicable | ||
Geographical Limits: | none recorded or not applicable | ||
Parent Unit: | Not Entered (?) | ||
Previous Name(s): | Leintwardine Beds [Obsolete Name and Code: Use LULT]
(-1050)
Leintwardine Group (LTB) Lower Leintwardine Formation (LLT) Upper Leintwardine Beds [Obsolete Name and Code: Use LULT, LTB] (-2925) Lower Leintwardine Beds [Obsolete Name and Code: Use LULT] (-2927) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
none recorded or not applicable | |||
Reference(s): | |||
Holland, C H, Lawson, J D, Walmsley, V G and White, D E. 1980. Ludlow stages. Silurian Series and stages decisions concerning chronostratigraphy. Lethaia, Vol.13, p.238, 268. | |||
Holland, C H, Lawson, J D and Walmsley, V G, 1963. The Silurian Rocks of the Ludlow District, Shropshire. Bulletin of the British Museum (Natural History), Geology Series. (London: British Museum (Natural History)). 93-171. | |||
Cocks, L R M, Holland, C H and Rickards, B. 1992. A revised correlation of Silurian rocks in the British Isles. Geological Society of London Special Report. No.21, 32pp. | |||
Holland, C H, Lawson, J D and Walmsley, V G, 1959. A revised classification of the Ludlovian succession at Ludlow. Nature, London, 1037-1039. | |||
Lawson, J D and White, D E, 1989. The Ludlow Series in the Ludlow area, 73-90 in A global standard for the Silurian system. Holland, C H and Bassett, M G (editors). (Cardiff: National Museum of Wales). | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E181 |