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Uranium and selected trace elements in granites from the Caledonides of East Greenland

Published online by Cambridge University Press:  05 July 2018

Agnete Steenfelt
Agnete Steenfelt*
Affiliation:
Geological Survey of Greenland, Øster Voldgade 10, DK-1350 København K, Denmark
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Abstract

The 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.

Type
Research Article
Information
Mineralogical Magazine , Volume 46 , Issue 339 , June 1982 , pp. 201 - 210
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

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References

Alexander-Marrack, P. D., and Friend, P. F. (1976 Meddr. Gronland, 206, 3, 122 pp.Google Scholar
Bailey, J. C. (1979 Geochemistry of igneous rocks. Copenhagen: Institute of Petrology, Univ. of Copenhagen.Google Scholar
Bain, J. H. C. (1977 BMR J. Austral. Geol. Geophys. 2, 137-47.Google Scholar
Beddoe-Stephens, B., and Secher, K. (1982 Mineral. Mag. 46, 130-2.CrossRefGoogle Scholar
Bowie, S. M. U., Simpson, P. R., and Rice, C. M. (1973 In Geochemical exploration, Jones, M. J. (ed.). London: Institution of Mining and Metallurgy.Google Scholar
Biitler, H. (1954 Meddr. Gronland, 116, 7, 126 pp.Google Scholar
Gallagher, M. J., Michie, U. McL., Smith, R. T., and Haynes, L. (1971 Trans. Inst. Min. Metall. 80, B 150-73.Google Scholar
Graeter, P. (1957 Meddr. Grønland, 155, 3, 102 pp.Google Scholar
Hailer, J. (1970 Ibid. 171, 5, 286 pp.Google Scholar
Hailer, J. (1971 Geology of the East Greenland Caledonides. New York: Interscience Publishers. 413 pp.Google Scholar
Hansen, B. T., and Tembush, H. (1979 Rapp. Grønlands Geol. Unders. 95, 96-101Google Scholar
Higgins, A. K., and Bär, M.-T. (1978 Bull. Geol. Soc. Denmark, 27, 55-62Google Scholar
Henriksen, N., and Higgins, A. K. (1976 In Geology of Greenland. A., Escher and W. S., Watt (eds.). Copenhagen: Geol. Surv. Greenland 182–246.Google Scholar
Higgins, A. K. (1976 J. Geol. Soc. Lond. 132, 289-305CrossRefGoogle Scholar
Phillips, W. E. A. (1979 In The Caledonides of the British Isles—-reviewed. Harris, A. L., Holland, C. M., and Leake, B. E. (eds.). Geol. Soc. Lond. Publ. 19–32.Google Scholar
Kunzendorf, H. (1979 Risø Rep. 407, 24 pp.Google Scholar
Friedrich, G. H. W., Koensler, W., and Steenfelt, A. (1978 Ibid. 375, 39 pp.Google Scholar
Moreau, M. (1976 In Geology, mining and extractive pro¬cessing of uranium, 83-102.Google Scholar
Jones, M. J. (ed.). London: Institution of Mining and Metallurgy.Google Scholar
Nielsen, B. L., and Løvborg, L. (1976 Rapp. Gr∼nlands Geol. Unders. 76, 44 pp.Google Scholar
Steenfelt, A. (1977 In Recognition and evaluation of uraniferous areas. Int. Atomic Energy Agency, Vienna (IAEA-TC-25/3) 87–105.Google Scholar
Noe-Nygaard, A. (1937 Meddr. Gr∼nland, 118, 6,153 pp.Google Scholar
Plant, J., Brown, G. C., Simpson, P. R., and Smith, R. T. (1980 Trans. Inst. Min. Metall. 89, B, 198-210Google Scholar
Rex, D. C., Gledhill, A. R., and Higgins, A. K. (1976 Rapp. Grønlands Geol. Unders. 80, 127-133Google Scholar
Rogers, J. J. W., Ragland, P. C., Nishimori, R. K., Green-berg, J. K., and Hauck, S. A. (1978 Econ. Geol. 73, 1539-55.CrossRefGoogle Scholar
Secher, K., Nielsen, B. L., and Steenfelt, A. (1976 Rapp. Grønlands Geol. Unders. 80, 112-15.Google Scholar
Simpson, P. R., Plant, J., and Cope, M. J. (1976 In Geology, mining and extractive processing of uranium. Jones, M. J. (ed.). London: Institution of Mining and Metallurgy. 126-39.Google Scholar
Brown, G. C., Plant, J., and Ostle, D. (1979 Phil. Trans. R. Soc. Lond. A, 291, 385-412Google Scholar
Steenfelt, A. (1976 Rapp. Grønlands Geol. Unders. 80, 110-11.Google Scholar
Kunzendoff, H. (1979 In Geochemical Exploration 1978. Watterson, J. R. and Theobald, P. K. (eds.). Colorado: Association of Exploration Geochemists.Google Scholar
Steenfelt, A., Nielsen, B. L. (1978 Rapp. Grønlands Geol. Unders. 90, 89-93Google Scholar
Steiger, R. H., Hansen, B. T., Schuler, C., Bär, M.-T., and Henriksen, N. (1979 J. Geol. 87, 475-95.Google Scholar
Stuckless, J. S., Bunker, C. M., Bush, C. A., Doering, W. T., and Scott, J. H. (1977 J. Res. U.S. Geol. Surv. 5, 61-81Google Scholar
Surlyk, F. (1978 Nature, Lond. 274, 130-3.CrossRefGoogle Scholar
Taylor, S. R. (1964 Geochim. Cosmochim. Acta, 28, 1273-85.CrossRefGoogle Scholar
Watson, J., and Plant, J. (1979 Phil. Trans. R. Soc. Lond. A, 291, 321-38.Google Scholar
Wilson, M. R., and Åkerblom, G. (1980 Sver. Geol. Unders., Rapp. Medd. 16, 42 pp.Google Scholar
Wollenberg, H. (1971 Risø Report, 228, 40 pp.Google Scholar