The BGS Lexicon of Named Rock Units — Result Details

Birstall Rock

Computer Code: BRSR Preferred Map Code: notEntered
Status Code: Index Level
Age range: Langsettian Substage (CA) — Langsettian Substage (CA)
Lithological Description: The Birstall Rock is a fine-grained, thickly bedded, cross bedded sandstone with common pebbles of ironstone, coal sandstone and mudstone, and common streaks of shaly coal.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: To c.30m
Geographical Limits: West Yorkshire area [Birstall, Yorkshire].
Parent Unit: Pennine Lower Coal Measures Formation (PLCM)
Previous Name(s): Cropper Gate Rock [Obsolete Name and Code: Use BRSR] (-3242)
Alternative Name(s): Park Gate Rock
Stratotypes:
none recorded or not applicable
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E077 E078