| State | South Dakota |
|---|---|
| Name | Corson Diabase |
| Geologic age | Lower Proterozoic |
| Lithologic constituents | Major
Igneous > Hypabyssal > Mafic-hypabyssal (Diabase)Black, intermediate- to coarse-grained diabase composed of plagioclase, pyroxene, and olivine.
|
| References | Tomhave, D.W., and Schulz, L.D., 2004, Bedrock Geologic Map Showing Configuration of the Bedrock Surface in South Dakota East of the Missouri River, South Dakota Geological Survey, GM 9, scale 1:500,000. |
| NGMDB product | |
| Counties | Minnehaha |