The BGS Lexicon of Named Rock Units — Result Details
Bay Member
| Computer Code: | BAY | Preferred Map Code: | BAY |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Streffordian Stage (OX) — Streffordian Stage (OX) | ||
| Lithological Description: | Sandstone and dark grey graptolitic shale. | ||
| Definition of Lower Boundary: | Distinguished from the rest of the Ardwell Farm Formation below, by the incoming of dark grey graptolite-bearing shale. | ||
| Definition of Upper Boundary: | Overlain by the South Shore Formation of the Whitehouse Subgroup. | ||
| Thickness: | At least 45m | ||
| Geographical Limits: | The Girvan area of southwest Scotland. | ||
| Parent Unit: | Ardwell Farm Formation (ARD) | ||
| Previous Name(s): | Whitehouse Beds [Obsolete Name and Code: Use WHE, BAY]
(-1331)
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| Alternative Name(s): | Cascade Member Ardwell Flags Formation (Topmost Beds) |
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| Stratotypes: | |||
| Type Section | The northwest side of Ardwell Bay, 4km southwest of Girvan. Ingham. In: Lawson and Weedon, 1992, p.399. | ||
| Reference(s): | |||
| Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W, Parkes, M A, Rushton, A W A and Woodcock, N H. 2000. A revised correlation of Ordovician rocks in the British Isles. Geological Society Special Report, No.24. | |||
| Ingham, J K. 1992. Excursion 30: Girvan Foreshore. 396-416 in Lawson, J D and Weedon, D S (editors), Geological Excursions around Glasgow and Girvan. Geological Society of Glasgow. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||