The BGS Lexicon of Named Rock Units — Result Details
Brennand Grit
Computer Code: | BRNG | Preferred Map Code: | BrG |
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Status Code: | Full | ||
Age range: | Pendleian Substage (CE) — Pendleian Substage (CE) | ||
Lithological Description: | Very coarse, pebbly to medium-grained cross-bedded feldspathic sandstone with minor siltstone beds. | ||
Definition of Lower Boundary: | Sharp and erosional on massive bedded sandstone and siltstone of the Pendle Grit Member. | ||
Definition of Upper Boundary: | Typically sharp at top of rootlet bed beneath base of grey micaceous siltstone and sandstone of the Roeburndale Member. | ||
Thickness: | 0 to 330m | ||
Geographical Limits: | South-eastern Lancaster Fells; also western Settle area. | ||
Parent Unit: | Pendleton Formation (PENDL) | ||
Previous Name(s): | Brennand Grits
(-85)
Brennand Grits Formation [Obsolete Name and Code: Use BRNG] (-2021) |
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Alternative Name(s): | Grassington Grit [Obsolete: use PENDL] |
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Stratotypes: | |||
Reference Section | Sapling Crag, Burn Fell, Brennand Fell area. 1750m east-south-east of Woolfhole Crag. | ||
Type Section | Brennand River, Brennand Fell area. All formation except upper boundary exposed. Section commences 300m west of Tooth Hill and 2300m upstream of Brennand Farm. | ||
Reference(s): | |||
Arthurton, R S, Johnson, E W, and Mundy, D J C. 1988. Geology of the country around Settle. Memoir of the British Geological Survey, Sheet 60 (England and Wales). | |||
Moseley, F, 1954. The Namurian of the Lancaster Fells. Quarterly Journal of the Geological Society of London, Vol.109, 423-454. | |||
Waters, C N, Waters, R A, Barclay, W J, and Davies, J R. 2009. Lithostratigraphical framework for Carboniferous successions of Southern Great Britain (Onshore). British Geological Survey Research Report, RR/09/01. 184pp. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E067 E060 |