Freda Sandstone

The Freda Sandstone is a geologic formation in Michigan. It dates back to the Proterozoic. Lithologically, the Freda Sandstone is a lithic, red-brown, cyclic sequence of sandstones, mudstones and shales (conglomerates are rare).

Freda Sandstone
Stratigraphic range: Proterozoic
TypeFormation
UnderliesJacobsville Sandstone
OverliesNonesuch Shale
Lithology
Primarysandstone
Othermudstone, shale
Location
RegionMichigan and Wisconsin
Country United States
Freda Sandstone (Pcf, grey) on NPS Apostle Islands geological map

References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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