The BGS Lexicon of Named Rock Units — Result Details

Laverton Sandstone

Computer Code: LVS Preferred Map Code: LvS
Status Code: Index Level
Age range: Yeadonian Substage (CY) — Yeadonian Substage (CY)
Lithological Description: A medium to thickly bedded, grey, medium-to coarse-grained, cross-bedded sandstone with beds of grey siltstone and a lingula band in parts.
Definition of Lower Boundary: A sharp upward change in a comformable succession from predominatly grey mudstone to sandstone, at the base of the first sandstone above the Cancelloceras cumbriense (G1b1) Marine Band.
Definition of Upper Boundary: A sharp upward change in a conformable succession from sandstone to predomantly mudstone to top of the last sandstone below the subcrenatum Marine Band (where recognised) or below the Winkesley Sandstone.
Thickness: From 10 - 25 m thick.
Geographical Limits: The pennine foothills between Masham, Kirkby Malzeard Moor and Winksley, North Yorkshire.
Parent Unit: Millstone Grit Group [See Also MIGR] (MG)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Reference Section  Sporadic exposures in the River Laver to the west of Winksley, North Yorkshire. Wilson and Thompson, 1965 
Reference Section  Well exposed in section in Stock Beck, a tributary of the River Laver, 5km west of Kirkby Malzeard, North Yorkshire: base not seen. Wilson and Thompson, 1965. 
Wilson, A A and Thompson, A T. 1965. The Carboniferous section in the Kirkby Malzeard area, Yorkshire. Proceedings of the Yorkshire Geological Society. Vol 35, 203-227. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: