Pokegama Quartzite

Includes conglomerate and siliceous mudstone.
State Minnesota
Name Pokegama Quartzite
Geologic age Paleoproterozoic
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Sedimentary > Clastic > Mudstone (Bed)siliceous mudstone
Sedimentary > Clastic > Conglomerate (Bed)
Comments Part of the Animikie Group. Part of the Geon 18 intrusions and supracrustal rocks (syn- to late Penokean orogenesis).

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 Cass - Crow Wing - Itasca - Morrison - Saint Louis