The BGS Lexicon of Named Rock Units — Result Details
Nant Hir Formation [Obsolete: use CSW]
| Computer Code: | NAH | Preferred Map Code: | NAH |
|---|---|---|---|
| Status Code: | Index Level | ||
| Age range: | Costonian Substage (OO) — Soudleyan Substage (OY) | ||
| Lithological Description: | [Obsolete: use CSW] | ||
| Definition of Lower Boundary: | none recorded or not applicable | ||
| Definition of Upper Boundary: | none recorded or not applicable | ||
| Thickness: | none recorded or not applicable | ||
| Geographical Limits: | none recorded or not applicable | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Nant Hir Shales [Obsolete Name and Code: Use NAH]
(-4214)
Nant-Hir Shales [Obsolete Name And Code: Use NAH] (NSH) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| Lockley, M G. 1980. The geology of the Llanuwchllyn to Llanmawddwy area, south Gwynedd, North Wales. Geological Journal, Vol.15, 21-41. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E120 E136 | |||