Deposit with commodities niobium, rare-earth elements, thorium, uranium
More information at and near this site: Nb-CO00019
| Feature ID | Nb-Mo00852 |
|---|---|
| Geographic coordinates | -107.071, 38.2599 |
| Point definition | Same location as the Iron Hill carbonatite stock deposit (Mo00853) |
| Reference | Hedlund and Olson (1975); Map GQ-1178 Date: 1975; Scale: Medium (1:24,000-1:250,000)
|
| Remarks | (1) Staatz and others (1980) |
| Commodities | niobium; rare-earth elements; thorium; uranium |
|---|---|
| Valuable materials | bastnaesite; chalcopyrite; columbite; galena; monazite; parisite; pyrochlore; rhabdophane; sphalerite; synchysite; thorite; thorogummite; xenotime |
| Associated materials | aegirite; alkali feldspar; ankerite; apatite; barite; biotite; calcite; diopside; dolomite; fluorite; garnet; goethite; hematite; idocrase; iron oxide minerals; melilite; orthoclase; phlogopite; pyrite; quartz; siderite; sodic amphibole; zeolite |
| Mineralization style | dikes; veins |
| Age of mineralization | 510 Ma (1) |
| Host rock age | Cambrian or Neoproterozoic |
| Host unit name | Carbonatite (2) |
| Host lithologies | ankeritic carbonatite (2); calcitic carbonatite (2); carbonatite; dolomitic carbonatite (2); sideritic carbonatite (2) |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| Additional references | (1) Van Gosen and Lowers (2007); (2) Hedlund and Olson (1975) |
“Several hundred carbonatite dikes intruding mainly pyroxenite of the complex at Iron Hill…They radiate outward from the carbonatite stock at Iron Hill, but do not appear to intrude it. The carbonatite dikes are typically 3-5 feet thick but a maximum thickness of 150 feet has been noted. Some dikes can be traced discontinuously for 300-600 feet along strike. All carbonatite dikes recognized to date are found within 1 mile of the alkalic complex at Iron Hill.”
Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p.
| Type | Model | Reference |
|---|---|---|
| Deposit model | Carbonatite-hosted REE deposits | Verplanck, P.L., Van Gosen, B.S., Seal, R.R, and McCafferty, A.E., 2014, A deposit model for carbonatite and peralkaline intrusion-related rare earth element deposits: U.S. Geological Survey Scientific Investigations Report 2010–5070-J, 58 p., http://dx.doi.org/10.3133/sir20105070J. |
| Geoenvironmental model | Carbonatite deposits | Modreski, P.J., Armbrustmacher, T.J., and Hoover, D.B., 1995, Carbonatite deposits, in du Bray, E.A., eds., Preliminary compilation of descriptive geoenvironmental mineral deposit models: U.S. Geological Survey Open-File Report 95-831, p. 47–49, https://doi.org/10.3133/ofr95831. |
| Date | Description | Class | Type | Material | Contained | Units |
|---|---|---|---|---|---|---|
| 1980 | Reserves | Unclassified | commodity | thorium oxide (ThO2) | 763 | short tons |
| 1980 | Reserves | Unclassified | commodity | total rare-earth oxide (TREO) | 21,000 | tons |
| 1980 | Resources | Probable Potential | commodity | thorium oxide (ThO2) | 4,240 | tons |
| 1980 | Reserves | Unclassified | commodity | uranium oxide (U3O8) | 57 | tons |
| 1980 | Reserves | Unclassified | commodity | niobium oxide (Nb2O5) | 1,330 | tons |
| 1980 | Resources | Probable Potential | commodity | niobium oxide (Nb2O5) | 6,590 | tons |
| 1980 | Resources | Probable Potential | commodity | uranium oxide (U3O8) | 287 | tons |
| 1980 | Resources | Probable Potential | commodity | total rare-earth oxide (TREO) | 106,000 | tons |
| 1980: Reserves, Unclassified | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Reserves |
| Resource classification | Unclassified |
| Material | thorium oxide (ThO2) |
| Material type | commodity |
| Material amount | 763 |
| Amount units | short tons |
| Contained commodity | 763 |
| Contained commodity units | short tons |
| Material amount SI | 608(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 608(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | Th |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Reserves, Unclassified | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Reserves |
| Resource classification | Unclassified |
| Material | total rare-earth oxide (TREO) |
| Material type | commodity |
| Material amount | 21,000 |
| Amount units | tons |
| Contained commodity | 21,000 |
| Contained commodity units | tons |
| Material amount SI | 19,000(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 19,000(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | TREO |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Resources, Probable Potential | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Resources |
| Resource classification | Probable Potential |
| Material | thorium oxide (ThO2) |
| Material type | commodity |
| Material amount | 4,240 |
| Amount units | tons |
| Contained commodity | 4,240 |
| Contained commodity units | tons |
| Material amount SI | 3,380(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 3,380(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | Th |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Reserves, Unclassified | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Reserves |
| Resource classification | Unclassified |
| Material | uranium oxide (U3O8) |
| Material type | commodity |
| Material amount | 57 |
| Amount units | tons |
| Contained commodity | 57 |
| Contained commodity units | tons |
| Material amount SI | 44(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 44(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | U |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Reserves, Unclassified | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Reserves |
| Resource classification | Unclassified |
| Material | niobium oxide (Nb2O5) |
| Material type | commodity |
| Material amount | 1,330 |
| Amount units | tons |
| Contained commodity | 1,330 |
| Contained commodity units | tons |
| Material amount SI | 843(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 843(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | Nb |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Resources, Probable Potential | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Resources |
| Resource classification | Probable Potential |
| Material | niobium oxide (Nb2O5) |
| Material type | commodity |
| Material amount | 6,590 |
| Amount units | tons |
| Contained commodity | 6,590 |
| Contained commodity units | tons |
| Material amount SI | 4,180(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 4,180(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | Nb |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Resources, Probable Potential | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Resources |
| Resource classification | Probable Potential |
| Material | uranium oxide (U3O8) |
| Material type | commodity |
| Material amount | 287 |
| Amount units | tons |
| Contained commodity | 287 |
| Contained commodity units | tons |
| Material amount SI | 221(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 221(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | U |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
| 1980: Resources, Probable Potential | |
|---|---|
| Year of estimate | 1980 |
| Resource description | Resources |
| Resource classification | Probable Potential |
| Material | total rare-earth oxide (TREO) |
| Material type | commodity |
| Material amount | 106,000 |
| Amount units | tons |
| Contained commodity | 106,000 |
| Contained commodity units | tons |
| Material amount SI | 96,200(calculated) |
| Material amount SI units | metric tons |
| Contained commodity SI | 96,200(calculated) |
| Contained commodity SI units | metric tons |
| Contained commodity element | TREO |
| Remarks | Record represents 13 carbonatite dikes with exposed length of 150–1200 feet |
| Short reference | Staatz and others (1980)Page 24 |
| Reference | Staatz, M.H., Hall, R.B., Macke, D.L., Armbrustmacher, T.J., and Brownfield, I.K., 1980, Thorium resources of selected regions in the United States: U.S. Geological Survey Circular 824, 32 p. |
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| Geologic map unit | -107.071, 38.2599 |
|---|---|
| Nearby scientific data | Find additional scientific data near this location |