Sekwi Formation

Sekwi Formation
Sekwi Formation
Stratigraphic range: Atdabanian (approx.) PreꞒ Ꞓ O S D C P T J K Pg N ↓ ; Fallotaspis, Nevadella, and Bonnia-Olenellus trilobite zones
Type	Formation
Underlies	Hess River Formation; Rockslide Formation;
Overlies	Vampire Formation; Backbone Ranges Formation; Ingta Formation (where the above are absent);
Thickness	700 m
Location
Region	Northwest Territories
Country	Canada

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]

References

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Sekwi Formation
Stratigraphic range: Atdabanian^[1] (approx.) PreꞒ Ꞓ O S D C P T J K Pg N ↓ ; Fallotaspis, Nevadella, and Bonnia-Olenellus trilobite zones^[2]
Type	Formation
Underlies	Hess River Formation Rockslide Formation
Overlies	Vampire Formation Backbone Ranges Formation Ingta Formation (where the above are absent)^[2]
Thickness	700 m^[2]
Location
Region	Northwest Territories
Country	Canada