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Hydrothermal Phase Relations Among Uranyl Minerals at the Nopal I Analog Site

Published online by Cambridge University Press:  19 October 2011

William M. Murphy*
Affiliation:
wmurphy@csuchico.edu, California State University, Chico, Geological and Environmental Sciences, zip 205, Chico, CA, 95929-0205, United States
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Abstract

Uranyl mineral paragenesis at Nopal I is an analog of spent fuel alteration at Yucca Mountain. Petrographic studies suggest a variety of possible hydrothermal conditions for uranium mineralization at Nopal I. Calculated equilibrium phase relations among uranyl minerals show uranophane stability over a broad range of realistic conditions and indicate that uranyl mineral variety is a consequence of chemical potential heterogeneity.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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References

REFERENCES

1. Murphy, W.M., Pearcy, E.C. and C., P. in Fourth Natural Analogue Working Group Meeting and Poços de Caldas Project Final Workshop edited by Come, B. and Chapman, N.A. (CEC EUR 13014 EN, 1991) pp. 267–276.Google Scholar
2. Murphy, W.M. and E.C. Pearcy in Scientific Basis for Nuclear Waste Management XV edited by Sombret, C.G. (Mater. Res. Soc. Proc. 257, Pittsburgh, PA, 1992) pp. 521527.Google Scholar
3. Pearcy, E.C., Prikryl, J.D., Murphy, W.M. and Leslie, B.W., App. Geochem. 9, 713732 (1994).Google Scholar
4. Murphy, W.M. and Codell, R.C. in Scientific Basis for Nuclear Waste Management XXII edited by Wronkiewicz, D.J. and Lee, J.H. (Mater. Res. Soc. Proc. 556, Warrendale, PA, 1999) pp. 551558.Google Scholar
5. Finch, R.J. in Scientific Basis for Nuclear Waste Management XX edited by Gray, W.J. and Triay, I.R. (Mater. Res. Soc. Proc. 257, Pittsburgh, PA, 1997) pp. 11851192.Google Scholar
6. Murphy, W.M. in Scientific Basis for Nuclear Waste Management XX edited by Gray, W.J. and Triay, I.R. (Mater. Res. Soc. Proc. 257, Pittsburgh, PA, 1997) pp. 713720.Google Scholar
7. Murphy, W.M., Prikryl, J. and Pickett, D.A., GSA Abs. Prog. 37, 197 (2005).Google Scholar
8. Calas, G., Sci. Géol. Bull. 30, 338 (1977).Google Scholar
9. Goodell, P.C. in Uranium in Volcanic and Volcanoclastic Rocks edited by Goodell, P.C. and Waters, A.C. (AAPG Studies in Geology 13, 1981) pp. 275–291.Google Scholar
10. George-Aniel, B., Leroy, J. and Poty, B. in Uranium Deposits in Volcanic Rocks (IAEA-TC-490/8, 1985) pp. 175186.Google Scholar
11. Ildefonse, P., Muller, J.-P., Clozel, B. and Calas, G., Engin. Geol. 29, 413439 (1990).Google Scholar
12. Murphy, W.M., Pearcy, E.C. and D.A. Pickett in Seventh EC Natural Analogue Working Group Meeting edited by von Maravic, H. and J. Smellie (CEC EUR 17851 EN, 1997) pp. 105112.Google Scholar
13. Fayek, et al., IHLRWM 2006, Las Vegas, NV, April 30-May 4, pp. 55–62.Google Scholar
14. Murphy, W.M. in Scientific Basis for Nuclear Waste Management XXIII edited by Smith, R.W. and Shoesmith, D.W. (Mater. Res. Soc. Proc. 608, Warrendale, PA, 2000) pp. 533544.Google Scholar
15. Murphy, W.M. and Pearcy, E.C. in Fifth CEC Natural Analogue Working Group Meeting and Alligator Rivers Analogue Project (ARAP) Final Workshop edited by von Maravic, H. and Smellie, J. (CEC EUR 15176 EN, 1994) pp. 219–224.Google Scholar
16. Leslie, B.W., Pearcy, E.C. and Prikryl, J.D. in Scientific Basis for Nuclear Waste Management XVI edited by Interrante, C.B. and Pabalan, R.T. (Mater. Res. Soc. Proc. 294, Pittsburgh, PA, 1993) pp. 505512.Google Scholar
17. Wronkiewicz, D.J. and Buck, E.C. in Uranium: Mineralogy, Geochemistry and the Environment edited by Burns, P.C. and Finch, R. (Min. Soc. Am. Rev. Min. 38, 1999) pp. 475497.Google Scholar
18. Grenthe, I. et al. Thermodynamics of Uranium (North-Holland, 1992) 656 p.Google Scholar
19. R. Guillaumont et al. Update on the Chemical Thermodynamics of Uranium, Neptunium, Plutonium, Americium and Technetium (Elsevier, 2003) 919 p.Google Scholar
20. Giammar, D.E. and Hering, J.G., Geochim. Cosmochim. Acta 66, 32353245 (2002).Google Scholar
21. Nguyen, S.N., Silva, R.J., Weed, H.C. and Andrews, J. E. Jr, J. Chem. Thermo. 24, 359.Google Scholar
22. Prikryl, J.D., in preparation (2006); Prikryl, J.D. andMurphy, W.M. in Scientific Basis for Nuclear Waste Management XXVIII edited by Hanchar, J.M., Stroes-Gascoyne, S. and Browning, L. (Mater. Res. Soc. Proc. 824, Warrendale, PA, 2004) pp. 189–194.Google Scholar
23. Chen, F., Ewing, R.C. and Clark, S.B., Amer. Min. 84, 650–664 (1999).Google Scholar
24. Chermak, J.A. and Rimstidt, J.D., Amer. Min. 74, 1023–1031 (1989).Google Scholar
25. Gorman-Lewis, D., Mazeina, L., Fein, J.B., Szymanowski, J.E.S., Burns, P. and Navrotsky, A., J. Chem. Thermo. 39, 568–575 (2007).Google Scholar
26. Pickett, D.A. and Murphy, W.M. in Seventh EC Natural Analogue Working Group Meeting edited by von Maravic, H. and Smellie, J. (CEC EUR 17851 EN, 1997) pp. 113–122.Google Scholar