Elgol Sandstone Formation
Stratigraphic range:
Bajocian–Bathonian

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Sandstones of the Elgol Sandstone Formation, exposed in the cliff behind Elgol school

Type| Geological formation
Unit of| Great Estuarine Group
Underlies| Lealt Shale Formation
Overlies| Cullaidh Shale Formation
Thickness| up to 32 metres (100 ft)
Lithology
Primary| Sandstone
Other| Mudstone
Location
Region| Europe
Country|  Scotland
Extent| Inner Hebrides
Type section
Named for| Elgol
Named by| Harris and Hudson
Location| Port Na Cullaidh
Year defined| 1980
Thickness at type section| 22 metres (70 ft)

The Elgol Sandstone Formation is a geological formation in Scotland, part of the Great Estuarine Group. It spans the transition between the Bajocian and Bathonian stages of the Middle Jurassic. The lithology consists of clay rich sandstone interbedded with silty fissile mudstone. [1]

## References

1. ↑ "BGS Lexicon of Named Rock Units - Result Details". https://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=ESA.

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