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Comparison of Granite, Tuff, and Basalt as Geologic Media for Long-Term Storage of High-Level Nuclear Waste

  • D. E. Grandstaff (a1), V. J. Grassi (a1), A. C. Lee and G. C. Ulmer (a1)

Abstract

Systematic differences in pH, cation/proton ion activity ratios, and redox have been observed between solutions produced in rock-water hydrothermal experiments with tuff, granite, and basalt. Stable pH values in tuff-water experiments may be as much as 1.5 pH units more acidic than basalt-water experiments at the same temperature and ionic strength. Redox (log fO2) values in 300°C tuff experiments are 4–7 orders of magnitude more oxidizing than basalt experiments and ca. 4 log units more oxidizing than the magnetite-hematite buffer. Such fluid differences could significantly affect the performance of a high-level nuclear waste repository and should be considered in repository design and siting.

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1. Arnórsson, S., Gunnlaugsson, E., and Svavarsson, H.. Geochim. Cosmochim. Acta 47, 547, (1983).
2. Kacandes, G. H. and Grandstaff, D. E.. Geochim. Cosmochim. Acta 53, 343 (1989).
3. Grandstaff, D.E., Ulmer, G.C., and Kacandes, G.H., in Nuclear Waste Management III: Ceramic Transactions, Vol. 9, edited by Mellinger, G.B. (Amer. Ceramic Soc., Westerville, OH 1990) pp. 347362.
4. Moore, E.L., Ulmer, G.C., and Grandstaff, D.E., Chem. Geol., 49, 53 (1985).
5. Seyfried, W.E. Jr., Janecky, D.R., and Berndt, M.E., in Hydrothermal Experimental Techniques, edited by Ulmer, G.C. and Barnes, H.L. (Wiley and Sons, New York, 1987).
6. Kishima, N. and Sakai, H.. Geochem J., 18, 19 (1984).
7. Kacandes, G.H., Ulmer, G.C., and Grandstaff, D.E., in Proceedings of the 6th International Water-rock Interaction Symposium, edited by Miles, D. (Balkema, Amsterdam 1989), p. 353356.
8. Oversby, V.M.. UCRL-53629, 26 p. (1985).
9. Knauss, K.G., Beiriger, W.J., and Peifer, D.W.. UCRL-53630 (1985).
10. Knauss, K.G. and Peifer, D.W.. UCRL-53795, 39p. (1986).
11. Lee, A. C., unpublished M.A. Thesis, Temple University 1990;
Lee, A. C., Ulmer, G.C., Grandstaff, D.E., Trans. Am. Geophys. Union 71, 663 (1990).
12. Savage, D., Cave, M.R., Milodowski, A.E., and George, I.. Contr. Min. Pet., 96, 391, (1987).
13. Savage, D.. Chem. Geol., 54, 81, (1986).
14. Korn, R., Ulmer, G.C., and Grandstaff, D.E., in Proceedings of the Fifth International Symposium on Water-Rock Interactions (Orkustofnun, Reykjavik 1986) pp. 333336.
15. Lane, D.L., Apted, M.J., Allen, C.C., Myers, J., in Scientific Basis for Nuclear Waste Management VII, edited by McVay, G.L. (North-Holland, New York 1984), pp. 95103.
16. Allen, C.C. and Rawson, S-A., unpublished manuscript.
17. Guven, N., in Hydrous Phyllosilicates (exclusive of micas), edited by Bailey, S.W. (Mineral. Soc. Amer., Washington, DC 1988), pp. 497552.
18. Allen, C.C. and Strope, M.B., Hanford Document: RHO-BW-SA-924P, (1983).
19. Hoag, R.B. and Stewart, G.W.. U.S. ERDA. Doc No. COO-2720–1 (1977).

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Comparison of Granite, Tuff, and Basalt as Geologic Media for Long-Term Storage of High-Level Nuclear Waste

  • D. E. Grandstaff (a1), V. J. Grassi (a1), A. C. Lee and G. C. Ulmer (a1)

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