The BGS Lexicon of Named Rock Units — Result Details
Wadbister Ness Formation
| Computer Code: | WAD | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ) | ||
| Lithological Description: | Alternating bands of flaggy, micaceous psammite and semipelite with bands of calc-silicate rock and impure marble as well as some bands of hornblende schist. | ||
| Definition of Lower Boundary: | Drawn at base of psammite of the Wadbister Ness Formation where it rests conformably on the Girlsta Limestone. | ||
| Definition of Upper Boundary: | Drawn at conformable upward passage from semi-pelite of the Wadbister Ness Formation to the Laxfirth Limestone. | ||
| Thickness: | Approximately 1000 m. | ||
| Geographical Limits: | Shetlands, Scotland. | ||
| Parent Unit: | Whiteness 'Division' (DWH) | ||
| Previous Name(s): | Wadbister Ness Group [Obsolete Name and Code: Use WAD]
(-4385)
Mica-Psammite Of Wadbister Ness Group [Obsolete Name And Code: See WAD] (DBWP) Wadbister Ness Series [Obsolete Name and Code: Use WAD] (-1262) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Wadbister Voe, Shetland, Scotland. | ||
| Reference(s): | |||
| Harris, A L and others, 1973. A correlation of the Pre-Cambrian rocks in the British Isles. Geological Society of London Special Report No 6. | |||
| Mykura W, 1976 British Regional Geology: Orkney and Shetland (HMSO, Edinburgh).] | |||
| Flinn, D, and others, 1972. A revision of the stratigraphic succession of the East Mainland of Shetland. Scottish Journal of Geology, Vol.8, p. 335-343. | |||
| Flinn, D, 1967. The metamorphic rocks of the southern part of the Mainland of Shetland. Geological Journal, Vol.5, p.251-290. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S126 S128 | |||