Undifferentiated mafic to felsic lava flows

Undifferentiated mafic to felsic lava flows. Includes the Lakeside, Lakewood, and Cross River lavas.
State Minnesota
Name Undifferentiated mafic to felsic lava flows
Geologic age Mesoproterozoic
Lithologic constituents
Major
Igneous > Volcanic (Flow)Undifferentiated mafic to felsic lava flows
Comments Part of the North Shore Volcanic Group - upper sequence, normal 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 - Lake - Saint Louis