| Sunblood Formation | |
| Type: | Formation |
| Period: | Ordovician |
| Region: | Northwest Territories |
| Country: | Canada |
| Overlies: |
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The Sunblood Formation is a geologic formation in Northwest Territories. It preserves fossils dating back to the Ordovician period. It comprises dolomite, sandstones and limestones, locally silty (giving rise to a vivid colouration through weathering).[1]