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  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. 
Reference Section  Sporadic exposures in the River Laver to the west of Winksley, North Yorkshire. 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: