Uranium in the Upper Cambrian black shale of Sweden
Trace Elements Investigations
495
This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission
By: Vincent Ellis McKelvey
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Abstract
The Peltura zone of the Upper Cambrian black shales of Sweden contains about 0.02 percent uranium. Maximum amounts are present in rocks deposited in an embayment in the sea and in rocks in or closely adjacent to that part of the vertical sequence that contains maximum amounts of distillable oil, total organic matter, pyrite, and a black highly uraniferous kerogen called "kolm". Available data suggest that the precipitation of uranium is favored by a low redox potential and that the uranium in the shale matrix may be in fine-grained kolm.
Suggested Citation
McKelvey, V.E., 1955, Uranium in the Upper Cambrian black shale of Sweden: U.S. Geological Survey Trace Elements Investigations 495, 20 p., https://doi.org/10.3133/tei495.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Uranium in the Upper Cambrian black shale of Sweden |
| Series title | Trace Elements Investigations |
| Series number | 495 |
| DOI | 10.3133/tei495 |
| Year Published | 1955 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 20 p. |
| Country | Sweden |