The BGS Lexicon of Named Rock Units — Result Details

Burwardsley Hill Bed

Computer Code: BRWH Preferred Map Code: notEntered
Status Code: Full
Age range: Anisian Age (TA) — Anisian Age (TA)
Lithological Description: Conglomerates, pebbly sandstones and sandstones, cross-bedded and coarse-grained. Pebbles are mainly of quartz and quartzite, up to 5 cm in diameter.
Definition of Lower Boundary: The lower boundary is placed at the downward change from conglomerate and pebbly sandstone to red-brown, fine- to coarse-grained sandstones with thin beds of red-brown mudstone, of the underlying Wilmslow Sandstone Formation.
Definition of Upper Boundary: At the upward change from mainly conglomerates to sandstones and pebbly sandstones in the Helsby Sandstone Formation.
Thickness: 0 to 11 m.
Geographical Limits: From just south of the village of Penley [SJ 41 39], Cheshire, to near the village of Beeston [SJ 54 58], Cheshire.
Parent Unit: Helsby Sandstone Formation (HEY)
Previous Name(s): Keuper Sandstone Conglomerate [Obsolete Name And Code] (KSC)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Burwardsley Hill, Cheshire (Earp and Taylor, 1986). The bed is well-exposed at the type section on Burwardsley Hill, and there are scattered quarry exposures in that area. 
Reference(s):
Earp, J R and Taylor, B J, 1986. Geology of the country around Chester and Winsford. Memoir of the British Geological Survey, Sheet 109 (England and Wales). 
Poole, E G, and Whiteman, A J. 1966. Geology of the country around Nantwich and Whitchurch. Memoir of the Geological Survey of Great Britain, Sheet 122 (England and Wales). 
Ambrose, K, Hough, E, Smith, N J P, and Warrington, G. 2014. Lithostratigraphy of the Sherwood Sandstone Group of England, Wales and south-west Scotland. British Geological Survey Research Report, RR/14/01. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable