The BGS Lexicon of Named Rock Units — Result Details

Rhynie Chert Member

Computer Code: RHNC Preferred Map Code: RHNC
Status Code: Pending Upgrade
Age range: Pragian Age (DP) — Pragian Age (DP)
Lithological Description: Chert with plant remains, with minor interbedded cherty sandstones.
Definition of Lower Boundary: Lower boundary is where cherty material overlies weathered shales.
Definition of Upper Boundary: Upper boundary where succeeded by argillaceous and arenaceous rocks.
Thickness: 2.23 metres in Trench No.3; 2.36 metres in Trench No.1.
Geographical Limits: Not defined.
Parent Unit: Dryden Flags Formation (DRY)
Previous Name(s): Rhynie Chert Formation [Obsolete Name And Code: See RHNC] (RCF)
Alternative Name(s): none recorded or not applicable
Type Area  40 metres south-south-west of Windyfield, near Rhynie, Sheet 76W, Scotland. 
Mackie, W. 1914. The rock series of Craigbeg and Ord Hill, Rhynie, Aberdeenshire. Transactions of the Geological Society of Edinburgh, Vol. 10, p. 205-236. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: