Balder Formation
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| Balder Formation | |
|---|---|
| Stratigraphic range: Earliest Eocene ~ | |
| Type | Formation |
| Unit of | Moray Group |
| Underlies | Horda, Mousa or Tay Formation |
| Overlies | Sele or Dornoch Formation, Montrose Group |
| Thickness | 30–300 m (98–984 ft) |
| Lithology | |
| Primary | Mudstone, tuff |
| Other | Sandstone |
| Location | |
| Region | Offshore; subsurface |
| Country | United Kingdom Norway Denmark |
| Extent | Central and northern North Sea, Faroe-Shetland Basin |
| Type section | |
| Named for | Balder, Norse deity |
The Balder Formation is a geological formation of lowermost Eocene in age, found in the Central and Northern North Sea and Faroe-Shetland Basin.[1] The formation is named after Balder, a god from Norse mythology. Layers of tuff are found, particularly at the base of the unit, deposited by airfall from volcanoes associated with the North Atlantic Igneous Province.[2]