| Staffin Bay Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Hebrides Basin |
| Sub-units | Upper Ostrea Member, Belemnite Sands Member |
| Underlies | Staffin Shale Formation |
| Overlies | Skudiburgh Formation |
| Thickness | up to 19 metres (60 ft) |
| Lithology | |
| Primary | Mudstone, Sandstone, Siltstone |
| Other | Limestone |
| Location | |
| Region | Europe |
| Country | Scotland |
| Extent | Inner Hebrides |
| Type section | |
| Named for | Staffin Bay |
| Location | Coastal exposure near Dunan |
| Thickness at type section | 15.95 m |
The Staffin Bay Formation is a geologic formation in Scotland that preserves fossils dating back to the Callovian stage of the Middle Jurassic. It composed of two members: the lower Upper Ostrea Member, which features of dark grey, fissile mudstone with a shelly limestone bed, along with laminated and rippled sandstone; and the upper Belemnite Sands Member, which consists of medium-grained calcareous sandstones and siltstones.
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