Thorium and rare earths in the United States, exclusive of Alaska and Hawaii
Mineral Investigations Resource Map
28
By: J.C. Olson and J. W. Adams
Compiled by: Jerry C. Olson and J. W. Adams
Links
- Document: Report (pdf)
- Plate: Plate 1 (pdf)
- NGMDB Index Page: National Geologic Map Database Index Page (html)
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Abstract
The accompanying map shows the location of the principal deposits of thorium and rare-earth minerals in the United States (excluding Alaska and Hawaii). Symbols of different shapes are used to depict deposits of different geologic types, and sizes of symbols denote the relative importance of the deposits. Because of scale limitations a symbol may represent groups of deposits too closely spaced to permit them to be distinguished separately. Some districts of considerable extent arc shown by a shaded pattern.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Thorium and rare earths in the United States, exclusive of Alaska and Hawaii |
| Series title | Mineral Investigations Resource Map |
| Series number | 28 |
| DOI | 10.3133/mr28 |
| Year Published | 1962 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | Report: 16 p.; 1 Plate: 63.96 × 40.50 inches |
| Country | United States |
| Other Geospatial | Conterminous United States |
| Scale | 3168000 |