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Sekwi Formation
From Wikipedia, the free encyclopedia
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The Sekwi Formation is a geologic formation in Northwest Territories, Canada, which preserves fossils dating back to the Cambrian period.
The formation principally comprises shallow water carbonates, but deepens to include mid-shelf mudstones, both calcareous and siliciclastic.[2]
It dates from c. 525-510 Ma, the Nevadella / Bonnia-Olenellus trilobite zones.[3]
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