|
USA | |
- Prince of Wales-Hyder Census Area
- Ketchikan Mining District
| (2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey |
|
| (2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey |
|
| Berger, Vladimir I., Singer, Donald A., Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. U.S. Geological Survey doi:10.3133/ofr20091139 |
|
| Henry Barwood - unpublished (2010) |
- Clark Mts (Clark Mountain Range)
| USGS Bulletin 2160 |
- Torrington (Wolcottville)
| Field observations July 2020 |
|
| Verplanck, P. l., Farmer, G. l., Kettler, R. M., Lowers, H. A., Koenig, A. E. and Blessington, M. J. (2014), Rare Earth Element Enrichments in the Elk Creek Carbonatite. Acta Geologica Sinica, 88: 466–467.
USGS Open File report 2010-5220 |
|
| Randy Becker Collection |
|
| Rocks and Minerals, (1987) 62:188-195 |
Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA