| 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). |
| 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. |
| 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). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
