The BGS Lexicon of Named Rock Units — Result Details
Beacon Hill Flags
Computer Code: | BHF | Preferred Map Code: | notEntered |
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Status Code: | Index Level | ||
Age range: | Marsdenian Substage (CZ) — Marsdenian Substage (CZ) | ||
Lithological Description: | Thinly laminated flaggy sandstones. | ||
Definition of Lower Boundary: | none recorded or not applicable | ||
Definition of Upper Boundary: | none recorded or not applicable | ||
Thickness: | c.10m | ||
Geographical Limits: | West Yorkshire [Beacon Hill, south of Ripponden, Yorkshire]. | ||
Parent Unit: | Millstone Grit Group [See Also MIGR] (MG) | ||
Previous Name(s): | Beacon Hill Tuff Formation [Obsolete Name and Code: Use BHF, CMBH]
(-3212)
Beaconsfield Flags (-695) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
none recorded or not applicable | |||
Reference(s): | |||
Wray, D A et al, 1930. Geology of the country around Huddersfield and Halifax. Memoir of the Geological Survey of Great Britain. | |||
Green, A H and others, 1878. Yorkshire Coalfield. Memoirs of the Geological Survey of Great Britain, p.27-33. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E086 E077 |