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Primary mineral distribution and secondary mobilization of uranium and thorium in radioactive granites

Silver, Leon T. and Woodhead, James A. and Williams, I. S. (1982) Primary mineral distribution and secondary mobilization of uranium and thorium in radioactive granites. In: Proceedings of the Symposium on Uranium Exploration Methods: review of the NEA/IAEA R & D Programme. Nuclear Energy Agency, Organisation for Economic Co-operation and Development , Paris, France, pp. 355-367. ISBN 978-92-64-02350-5. http://resolver.caltech.edu/CaltechAUTHORS:20190214-151508769

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Abstract

Radioactive granites in the southwestern United States tend to form distinct geochemical provinces, for which the resistant mineral zircon provides useful indices of primary igneous endowments. A large fraction of the uranium and thorium in these granites is contained in trace minerals, stoichiometric for the actinides (e.g. brannerite, coffinite, uranothorite), present at levels up to tens of ppm. Secondary mobilization of uranium in radioactive rocks seems most dependent on the geochemical stability of these rare phases, especially after their modification by radiation damage. U-Th-Pb isotope systematics provide several independent indications of the magnitude and timing of uranium transfers (1) within the granitic systems in what we believe are important preparation processes, and (2) to sites outside the granites including potential secondary uranium ore deposits.


Item Type:Book Section
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https://inis.iaea.org/search/search.aspx?orig_q=RN:14767631OrganizationArticle
Additional Information:© 1982 OECD.
Record Number:CaltechAUTHORS:20190214-151508769
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190214-151508769
Official Citation:Silver, L.T., Woodhead, J.A., & Williams, I.S. (1982). Primary mineral distribution and secondary mobilization of uranium and thorium in radioactive granites. Nuclear Energy Agency of the OECD (NEA): OECD. Silver, L.T., Woodhead, J.A., & Williams, I.S. (1982). Primary mineral distribution and secondary mobilization of uranium and thorium in radioactive granites. Nuclear Energy Agency of the OECD (NEA): OECD.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92950
Collection:CaltechAUTHORS
Deposited By: Gail Peretsman Clement
Deposited On:19 Feb 2019 18:55
Last Modified:19 Feb 2019 18:55

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