Troctolite, augite troctolite, and troctolitic gabbro of the Houghtaling Creek troctolite

Troctolite, augite troctolite, and troctolitic gabbro of the Houghtaling Creek troctolite (~1,099 Ma).
State Minnesota
Name Troctolite, augite troctolite, and troctolitic gabbro of the Houghtaling Creek troctolite
Geologic age Mesoproterozoic
Lithologic constituents
Major
Igneous > Plutonic > Gabbroic > Gabbrotroctolitic gabbro
Igneous > Plutonic > Gabbroic > Gabbro > TroctoliteTroctolite, augite troctolite, and troctolitic gabbro
Comments Part of the Beaver Bay Complex and other hypabyssal intrusions. 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