The BGS Lexicon of Named Rock Units — Result Details

Openshaw Sandstone

Computer Code: OPS Preferred Map Code: notEntered
Status Code: Full
Age range: Bolsovian Substage (CC) — Bolsovian Substage (CC)
Lithological Description: A dark reddish brown sandstone and subordinate mudstone.
Definition of Lower Boundary: The lower boundary is taken at the base of a sandstone-dominated unit directly overlying the Openshaw Coal.
Definition of Upper Boundary: The upper boundary is taken at the base of the mudstone-dominated succession of the Pennine Upper Coal Measures Formation above the sandstones of the Openshaw Sandstone.
Thickness: 24 m thick.
Geographical Limits: The Bradford district of East Manchester [SJ864 988].
Parent Unit: Pennine Upper Coal Measures Formation (PUCM)
Previous Name(s): Aqueduct Rock (-1105)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Former sewer section, Rochdale Road/Eggington Street, Manchester, which exposed a section through the whole unit, but is no longer accessible. Tonks et al., 1931. 
Type Area  The Bradford district of East Manchester (not presently exposed). Tonks et al., 1931. 
Reference(s):
Tonks, L H, Jones, R C B, Lloyd, W and Sherlock, R L, 1931. The geology of Manchester and the south-east Lancashire Coalfield. Memoir of the Geological Survey of England and Wales. 
Binney, E W. 1841. Observations on the Lancashire and Cheshire Coal Field, with a section. Transactions of the Manchester Geological Society, Vol I, 67-79. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E085