The BGS Lexicon of Named Rock Units — Result Details

Kibblestone Member

Computer Code: KBN Preferred Map Code: KBN
Status Code: Full
Age range: Early Triassic Epoch (TE) — Anisian Age (TA)
Lithological Description: Sandstone, grey-ochreous mostly medium-grained, dune-bedded, cross-stratified with "pin-stripe" lamination. Well sorted, non-pebbly, mica very rare.
Definition of Lower Boundary: Interpreted to be disconformable at the base of the lowest sandstone with aeolian characteristics lying above pebbly, more poorly sorted (water-laid) sandstones/siltstones of Kidderminster Formation.
Definition of Upper Boundary: Conformable at base of lowest siltstone/mudstone of the overlying Maer Formation.
Thickness: c. 15-30m.
Geographical Limits: South of Swynnerton Fault in the Moddershall-Stone area, Staffordshire.
Parent Unit: Helsby Sandstone Formation (HEY)
Previous Name(s): Kibblestone Formation [Obsolete name and code, use KBN) (-5137)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Cliff behind watermill, Kibblestone Scout Camp, Staffordshire. 
Partial Type Section  Road cutting, Vanity Lane, Oulton, Staffordshire. 
Partial Type Section  Road cutting, Stoke-on-Trent to Stone road, Staffordshire. 
Reference(s):
Rees, J G and Wilson, A A. 1998. Geology of the country around Stoke-on-Trent. Memoir of the British Geological Survey, Sheet 123 (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:
E123