Puckwunge and Nopeming Sandstones

Puckwunge and Nopeming Sandstones.
State Minnesota
Name Puckwunge and Nopeming Sandstones
Geologic age Mesoproterozoic
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Comments Part of the North Shore Volcanic Group - lower sequence, reversed and unknown polarity. Part of the Keweenawan Supergroup and Midcontinent Rift Intrusive Supersuite.
References

Jirsa, Mark A., Boerboom, Terrence J., Chandler, Val W., Mossler, John H., Runkel, Anthony C., and Setterholm, Dale R., 2011, S-21 Geologic Map of Minnesota-Bedrock Geology; Minnesota Geological Survey, State Map Series S-21. Scale 1:500,000.

NGMDB product
Counties Cook - Saint Louis