The BGS Lexicon of Named Rock Units — Result Details
Orkney Sandstone Group [Obsolete: use EDY]
| Computer Code: | OYS | Preferred Map Code: | OyS |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Mid Devonian Epoch (DM) — Late Devonian Epoch (DU) | ||
| Lithological Description: | [Obsolete: use EDY] Fluvial, aeolian and sabkha sediments overlying the lacustrine flagstones of the Caithness Flagstone Group. NOTE: Composite of formational type sections in northern Caithness and Orkney. Various cliff sections in the Orkney Islands. | ||
| Definition of Lower Boundary: | Base of the predominantly fluvial sandstones that cut across the top of the lacustrine flagstones. | ||
| Definition of Upper Boundary: | Uppermost sediments of the Orcadian Old Red Sandstone sequence. (Top everywhere eroded). | ||
| Thickness: | Over 1000m. | ||
| Geographical Limits: | Northern Caithness and Orkney. | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Eday Group
(EDY)
Old Red Sandstone, Upper [Obsolete Name and Code: Use OYS] (-4241) Dunnet Head Sandstone Group [Obsolete Name and Code: Use DUH, OYS] (-4626) [Obsolete Code: Use OYS] (*65) Eday Group (EDY) Hoy Sandstone Group [Obsolete Name and Code: Use HOY, OYS] (-4828) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| Fletcher, T P. 1996, A review of the lithostratigraphy of the Old Red Sandstone Supergroup in Scotland north of a line from Fort William to Aberdeen. BGS Technical Report WA/96/39R. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S117 | |||