Preliminary map of iron provinces in the conterminous United States
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Geology topics
Publications and source records attributed to Harry Klemic.
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Thorium-free brannerite has been identified in Upper Devonian uraniferous sandstone from Penn Haven Junction, Carbon County, Pa. The brannerite was located by a variation of the "Lexan" technique and is associated with galena, uraninite, and clausthalite. The angular thorium-free nature of the brannerite suggests that it formed by metamorphism of uranium-saturated leucoxene. As a result of the metamorphism some uranium may be in less soluble minerals than those found in the uranium deposits of the Western United States. For this reason, in-place leaching of the uranium may be impractical.
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