The BGS Lexicon of Named Rock Units — Result Details
Far House Member
Computer Code: | FARH | Preferred Map Code: | notEntered |
---|---|---|---|
Status Code: | Full | ||
Age range: | Telychian Age (ST) — Telychian Age (ST) | ||
Lithological Description: | Pale grey mudstone, massive. | ||
Definition of Lower Boundary: | At the top of the last red mudstone of the Hebblethwaite Member or (where this Member is absent) where laminated mudstone gives way to massive mudstone. | ||
Definition of Upper Boundary: | At the base of the lowest unit of thinly laminated silty mudstone of the Brathay Formation. | ||
Thickness: | About 8m in the Howgill Fells, 2-10m regionally. | ||
Geographical Limits: | Across the Howgill Fells and Lake District. | ||
Parent Unit: | Browgill Formation (BRW) | ||
Previous Name(s): | Grey Beds
(GRY)
Grey Beds (GRY) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | Stream section 300 m north of Hollin Bank Farm. | ||
Reference(s): | |||
Kneller, B C, Scott R W, Soper N J, Johnson E W and Allen P M, 1994. Lithostratigraphy of the Windermere Supergroup, Northern England. Geological Journal, Vol. 29, 219-240. | |||
Scott, R W and Kneller, B C, 1990. A report on the Ashgill and Llandovery age rocks of Sheet 38 (Ambleside). British Geological Survey Technical Report WA/90/63. | |||
Rickards, R B, 1964. The graptolitic mudstone and associated facies in the Silurian strata of the Howgill Fells. Geological Magazine, Vol.101, 435-445. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
none recorded or not applicable |