title: Sekwi Formation
text: # Sekwi Formation
  
  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.
  
  It dates from c. 525-510 Ma, the Nevadella / Bonnia-Olenellus trilobite zones.
  
  