State | North Dakota |
---|---|
Name | Winnipeg Group |
Geologic age | Ordovician |
Lithologic constituents | Major
Sedimentary > Clastic > Sandstone (Bed)marine nearshore and offshore sediment
Sedimentary > Clastic > Mudstone > Shale (Bed)marine nearshore and offshore sediment
|
References | North Dakota Geological Survey, 2001, Geologic Bedrock Map of North Dakota based on Bluemle, John P., 1983, Geologic and Topographic Bedrock Map of North Dakota, NDGS Miscellaneous Map 25, 1:670,000 scale. |
NGMDB product | |
Counties | Grand Forks |