|
USA | |
| Rocks & Min. Vol. 73 (1998) |
- Upper Mississippi Valley Mining District
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Heyl, A., Agnew, A., Lyons, E. & Behre C. JR, (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309: 219-220. |
- Ladysmith-Rhinelander Metavolcanic Complex
| DeMatties, T. A. (2018). Effects of paleoweathering and supergene activity on volcanogenic massive sulfide (VMS) mineralization in the Penokean Volcanic Belt, northern Wisconsin, Michigan and east-central Minnesota, USA: Implications for future exploration. Ore Geology Reviews, 95, 216-237. |
| 55TH INSTITUTE ON LAKE SUPERIOR GEOLOGY (2009) PROCEEDINGS VOLUME 55 p. 7 |