Sandstone, siltstone, and local conglomerate

Sandstone, siltstone, and local conglomerate. Includes the Hinckley Sandstone and Fond du Lac (youngest detrital zircons ~1,000 Ma) and Solar Church Formations; deposition in eolian, fluvial, and lacustrine environments.
State Minnesota
Name Sandstone, siltstone, and local conglomerate
Geologic age Mesoproterozoic
Lithologic constituents
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Comments Part of the Keweenawan Supergroup and Midcontinent Rift Intrusive Supersuite.

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 Aitkin - Carlton - Chisago - Crow Wing - Isanti - Kanabec - McLeod - Mille Lacs - Pine - Saint Louis - Scott - Sherburne - Sibley - Wright