Gabbroic cumulates

Gabbroic cumulates. Includes the Poplar Lake (formerly Nathan's layered series) and Crocodile Lake intrusions (~1,107 Ma).
State Minnesota
Name Gabbroic cumulates
Geologic age Mesoproterozoic
Lithologic constituents
Major
Igneous > Plutonic > Gabbroic > GabbroGabbroic cumulates
Comments Part of the Duluth Complex - early gabbro series. 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