| State | Wisconsin |
|---|---|
| Name | Granophyre |
| Geologic age | Middle Proterozoic |
| Lithologic constituents | Major
Igneous > Plutonic > Graniticgranophyre
|
| Comments | Associated with Amnicon pluton and the Mellen complex |
| References | Zartman and others, 1997, U-Th-Pb zircon ages of some Keweenawan Supergroup rocks from the south shore of Lake Superior: Canadian Journal of Earth Sciences, v. 34, p. 549-561.Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 1999), scale 1:500,000.https://pubs.er.usgs.gov/publication/ofr97455 |
| NGMDB product | |
| Counties | Ashland - Bayfield - Douglas - Iron |