| Reference Type | Journal (article/letter/editorial) |
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| Title | Uranium and selected trace elements in granites from the Caledonides of East Greenland |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Steenfelt, Agnete | Author |
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| Year | 1982 (June) | Volume | 46 |
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| Issue | 339 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_46/46-339-201.pdf+ |
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| DOI | doi:10.1180/minmag.1982.046.339.06Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3384 | Long-form Identifier | mindat:1:5:3384:2 |
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| GUID | 0 |
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| Full Reference | Steenfelt, Agnete (1982) Uranium and selected trace elements in granites from the Caledonides of East Greenland. Mineralogical Magazine, 46 (339) 201-210 doi:10.1180/minmag.1982.046.339.06 |
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| Plain Text | Steenfelt, Agnete (1982) Uranium and selected trace elements in granites from the Caledonides of East Greenland. Mineralogical Magazine, 46 (339) 201-210 doi:10.1180/minmag.1982.046.339.06 |
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| In | (1982, June) Mineralogical Magazine Vol. 46 (339) Mineralogical Society |
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| Abstract/Notes | AbstractThe Caledonian fold belt of East Greenland contains calc-alkaline granite (sensu lato) intrusions with ages ranging from c.2000 Ma to c.350 Ma. The Proterozoic granites have low U contents and the pre-Devonian Caledonian granites contents of U corresponding to the clarke value for U in granites. Some aspects of the geochemistry of U are discussed using U-K/Rb, U-Sr, U-Zr, and U-Th diagrams. Secondary enrichment and mineralization occurs in fractured and hydrothermally altered granites and rhyolites situated in or near a major NNE fault zone. The U is associated with iron oxides or hydrocarbons. It is suggested that the source of the mineralization was Devonian acid magma, which also acted as a heat source for circulating hydrothermal fluids. |
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