| Computer Code: |
RHNC |
Preferred Map Code: |
RHNC |
| Status Code: |
Full |
| 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: |
Rhynie Outlier, Grampian Highlands, Scotland. |
| 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
|
| Stratotypes: |
| Type Area |
40 metres south-south-west of Windyfield, near Rhynie, Sheet 76W, Scotland. |
| Reference(s): |
| Stephenson, D and Gould, D. 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey.) |
| 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: |
|
S076
|
