Loch Ness Supergroup | |
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Stratigraphic range: 900–850 Ma | |
![]() Vertically banded rocks of the Glenfinnan Group | |
Type | Geological supergroup |
Sub-units | Loch Eil Group, Glenfinnan Group, Badenoch Group |
Underlies | Dalradian Supergroup |
Overlies | Wester Ross Supergroup with tectonic contact |
Area | Northwestern Scotland |
Thickness | 6–9 km |
Lithology | |
Primary | Semi-pelite, Pelite, Psammite |
Other | Quartzite |
Type section | |
Named for | Loch Ness |
The Loch Ness Supergroup is one of the subdivisions of the Neoproterozoic sequence of sedimentary rocks (or their metamorphic equivalents) in the Scottish Highlands.[1] It is found everywhere in tectonic contact above the older Wester Ross Supergroup. It is thought to be unconformably overlain by the Cryogenian to Cambrian Dalradian Supergroup.[2]