| Abstract: | Relatively unoxidized black uranium ores from sandstone deposits in the western United States show deviations in the uranium-235 to uranium-234 ratio throughout a range from 40 percent excess uranium-234 to 40 percent deficient uranium-234 with respect to a reference uranium-235 to uranium-234 ratio. The deficient uranium-234 is leached preferentially to uranium-238 and the excess uranium-234 is believed to result from deposition of uranium-234 enriched in solutions from leached deposits. |
| Genre: | Article |
| ProdID: | 70010842 |
| Citation Author: | Rosholt, J. N.; Shields, W. R.; Garner, E. L. |
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| Citation End Page: | 226 |
| Citation Issue: | 3551 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 3 |
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| Citation Search Results Text: | Isotopic fractionation of uranium in sandstone; 1963; Article; Journal; Science; Rosholt, J. N.; Shields, W. R.; Garner, E. L. |
| Citation Start Page: | 224 |
| Citation Volume: | 139 |
| Citation Year: | 1963 |
| Type: | citation/reference |
| Text: | Isotopic fractionation of uranium in sandstone; 1963; Article; Journal; Science; Rosholt, J. N.; Shields, W. R.; Garner, E. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1963 00:00 -0600 |
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