Sawatch Formation

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Sawatch Formation
Stratigraphic range: Cambrian
Type Formation
Location
Region Colorado
Country United States

The Sawatch Formation is a geologic formation in eastern Colorado. It is a sedimentary sequence formed approximately 530 million years ago during a marine transgression. It preserves fossils dating back to the Cambrian period. It is composed of glauconitic and quartz-rich sandstone.

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References

    https://pubs.usgs.gov/of/1992/0718/report.pdf