An upper limit on the spontaneous fission decay constant of 232Th derived from xenon in monazites with extremely high Th/U ratios

Geophysical Research Letters

Volumn 26, Issue 1, 1999, Pages 107-110

  Wieler, Rainer ^b   Eikenberg, Jost ^a  

^a PAUL SCHERRER INSTITUTE   (Switzerland)

^b ETH ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

MONAZITE; THORIUM; URANIUM SERIES DATING; XENON;

LEAD DEPOSITS; ORE DEPOSITS; PHOSPHATE MINERALS;

BAYAN OBO; ISOCHRON AGE; SPONTANEOUS FISSION; SPONTANEOUS FISSION DECAY CONSTANT; UPPER LIMITS;

MONAZITE;

EID: 0032923645     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/1998GL900262     Document Type: Article

References (26)

1. Bair, J. K., and J. Gomez del Campo, Neutron yields from alpha-particle bombardment, Nucl. Sci.Engin., 71, 18-28, 1979.
2. Basford, J. R., J.C. Dragon, R.O. Pepin, M.R. Coscio, and V.R. Murthy, Krypton and xenon in lunar fines, Proc. Lunar Sci. Conf. 4th, 1915-1955, 1973.
3. Eikenberg, J., Vergleichende Datierung von Uranmineralien mit den U-Xe, U-Kr and U-Pb Systemen, sowie Untersuchungen der Produktion von Ne und Ar durch Kernprozesse, PhD-Thesis, 220pp., ETH-Zürich Nr. 8522, 1988.
4. Eikenberg, J., P. Signer, and R. Wieler, U-Xe, U-Kr and U-Pb systematics for dating uranium minerals and investigations of the production of nucleogenic neon and argon, Geochim. Cosmochim. Acta, 57, 1053-1069, 1993.
5. 232Th, Nucl. Instr. and Methods, B 128, 355-357, 1975.
6. th edition), Wiley Sons, New York.
7. Flerov, G. N., D. S. Klochikov, V. S. Skobkin, and V. V. Terent'ev, (in Russian), Sov. Phys. Doklady, 3, 79, 1958.
8. Gebauer, D., and M. Grünenfelder, U-Th-Pb dating of minerals, in Lectures in Isotope Geology, edited by E. Jäger, and J. C. Hunziker, Springer, Berlin - New York, pp. 105-131, 1979.
9. Hebeda, E. H., L. Schultz, and M. Freudel, Radiogenic, fissiogenic and nucleogenic noble gases in zircons, Earth Planet. Sci. Lett., 85, 79-90, 1987.
10. Hoffman, D. C., and M. R. Lane, Spontaneous fission, Radiochim. Acta, 70/71, 135-145, 1995.
11. Holden, N. E., and D. C. Hoffman, Spontaneous fission half-lives for ground state nuclides, Brookhaven National Laboratory Rpt. BNL-46463, 1991.
12. Khlopin, V. G., E. K. Gerling, and N. V. Baranovskaya, New method for age determination of minerals. Doklady USSR Academy of Sciences, 61, 297-303, 1948.
13. Podgurskaya, A. V., V. I. Kalashnikova, G. A. Stoliarov, E. D. Vorob'ev, and G. N. Flerov, The spontaneous fission of Thorium, J. Exper. Theoret. Phys. USSR (Soviet Physics), 28, 503-505, 1955.
14. 238U, Earth Planet. Sci. Lett., 128, 653-670, 1994.
15. Rubbia, C. J., A. Rubio, S. Buono, F. Carminati, N. Fiétier, J. Galvez, C. Gelès, Y. Kachi, R. Klapisch, P. Mandrillon, J. P. Revol, and Ch. Roche, Conceptual design of a fast neutron operated high power energy amplifier, CERN |AT| 95-44(ET), Sept. 1995
16. Segrè, E., Spontaneous fission, Phys. Rev. 86, 21-28, 1952.
17. Shukoljukov, J., T. Kirsten, and E. K. Jessberger, The Xe-Xe spectrum technique, a new dating method, Earth Planet. Sci. Lett., 24, 271-281, 1974.
18. Shukolyukov, Yu. A., and S. L. Mirkina, Determination of the ages of monazites by the xenon method, Geochem. Int. 1, 729-731, 1963.
19. 238U spontaneous fission using Xe accumulated in U-bearing minerals, Soviet Atomic Energy, 25, 428-429, 1968.
20. Spandavecchia, A., and B. Hahn, Die Rotationskammer und einige Anwendungen, Helv. Phys. Acta, 40, 1063-1079, 1967.
21. Steiger, R.H., and E. Jäger, Subcommission on Geochronology: convention on the use of decay constants in geo-and cosmochronology, Earth Planet. Sci. Lett. 36, 359-362, 1977.
22. Von Gunten R., Distribution of mass in spontaneous and neutron induced fission, Actinide Rev. 1, 295-298, 1969.
23. 208Pb chronology of fine grained monazite: age of the Bayan Obo REE-Fe-Nb ore deposit, China, Geochim. Cosmochim Acta, 58, 3155-3169, 1994.
24. Wetherill, G. W., Spontaneous fission yields from uranium and thorium, Phys. Rev., 92, 907-912, 1953.
25. 238U spontaneous fission, Can. J. Phys. 38, 1-10, 1960.
26. Zehnder, H. J., P. Kopp, J. Eikenberg, U. Feller, and J. J. Oertli, Uptake and transport of radioactive Cs and Sr into grapevines after leaf contamination, Radial. Phys. Chem, 46 (1), 61-69, 1995.