Precise determination of the open ocean 234U/238U composition

Geochemistry, Geophysics, Geosystems

Volumn 11, Issue 12, 2010, Pages

  Andersen, M B ^a,b   Stirling, C H ^a,c   Zimmermann, B ^a   Halliday, A N ^a,d  

^a ETH ZURICH   (Switzerland)

^b UNIVERSITY OF BRISTOL   (United Kingdom)

^c UNIVERSITY OF OTAGO   (New Zealand)

^d UNIVERSITY OF OXFORD   (United Kingdom)

Author keywords

geochemistry; marine; uranium isotopes

Indexed keywords

GEOCHEMISTRY; NUCLEAR FUELS; OCEANOGRAPHY; SEAWATER;

MARINE; MARINE CARBONATES; PALEOCLIMATE RESEARCH; PRECISE DETERMINATIONS; PRECISE MEASUREMENTS; REPRODUCIBILITIES; SECULAR EQUILIBRIUM; URANIUM ISOTOPES;

DELTA WING AIRCRAFT;

CHEMICAL COMPOSITION; HYDROGEOCHEMISTRY; MEASUREMENT METHOD; OPEN OCEAN; PRECISION; SEAWATER; URANIUM ISOTOPE; VERTICAL MIXING;

EID: 78650289176     PISSN: 15252027     EISSN: 15252027     Source Type: Journal    
DOI: 10.1029/2010GC003318     Document Type: Article

References (23)

1. Andersen, M. B., C. H. Stirling, E. K. Potter, and A. N. Halliday (2004), Toward epsilon levels of measurement precision on 234U/238U by using MC-ICPMS, Int. J. Mass Spectrom., 237(2-3), 107-118, doi:10.1016/j.ijms.2004.07.004.
2. Andersen, M. B., C. H. Stirling, D. Porcelli, A. H. Halliday, P. S. Andersson, and M. Baskaran (2007), The tracing of riverine U in Arctic seawater with very precise 234U/238U measurements, Earth Planet. Sci. Lett., 259, 171-185, doi:10.1016/j.epsl.2007.04.051. (Pubitemid 46947902)
3. Andersen, M. B., C. H. Stirling, E. K. Potter, A. N. Halliday, S. G. Blake, M. T. McCulloch, B. F. Ayling, and M. O'Leary (2008), High-precision U-series measurements of more than 500,000 year old fossil corals, Earth Planet. Sci. Lett., 265, 229-245, doi:10.1016/j.epsl.2007.10.010. (Pubitemid 350227246)
4. Chabaux, F., J. Riotte, and O. Dequincey (2003), U-Th-Ra fractionation during weathering and river transport, in Uranium- Series Geochemistry, Rev. in Mineral. and Geochem., vol. 52, pp. 533-576, doi:10.2113/0520533, Mineral. Soc. of Am., Washington, D. C.
5. Chen, J. H., R. L. Edwards, and G. J. Wasserburg (1986), 238U, 234U and 232Th in seawater, Earth Planet. Sci. Lett., 80(3-4), 241-251, doi:10.1016/0012-821X(86)90108-1.
6. Cheng, H., J. Adkins, R. L. Edwards, and E. A. Boyle (2000a), U-Th dating of deep-sea corals, Geochim. Cosmochim. Acta, 64(14), 2401-2416, doi:10.1016/S0016-7037(99)00422-6. (Pubitemid 30483822)
7. Cheng, H., R. L. Edwards, J. Hoff, C. D. Gallup, D. A. Richards, and Y. Asmerom (2000b), The half-lives of uranium-234 and thorium-230, Chem. Geol., 169(1-2), 17-33, doi:10.1016/ S0009-2541(99)00157-6.
8. Condon, D. J., N. McLean, S. R. Noble, and S. A. Bowring (2010), Isotopic composition (235U/238U) of some commonly used uranium reference materials, Geochim. Cosmochim. Acta, 74, 7127-7143.
9. Delanghe, D., E. Bard, and B. Hamelin (2002), New TIMS constraints on the uranium-238 and uranium-234 in seawaters from the main ocean basins and the Mediterranean Sea, Mar. Chem., 80(1), 79-93.
10. Edwards, R. L., C. D. Gallup, and H. Cheng (2003), Uraniumseries dating of marine and lacustrine carbonates, in Uranium- Series Geochemistry, Rev. in Mineral. and Geochem., vol. 52, pp. 363-405, doi:10.2113/0520363, Mineral. Soc. of Am., Washington, D. C.
11. Hart, S. R., and A. Zindler (1989), Isotope fractionation laws: A test using calcium, Int. J. Mass Spectrom. Ion Processes, 89(2-3), 287-301, doi:10.1016/0168-1176(89)83065-4.
12. Jaffey, A., K. Flynn, L. Glendenin, W. Bentley, and A. Essling (1971), Precision measurement of half-lives and specific activities of 235U and 238U, Phys. Rev. C, 4, 1889-1906, doi:10.1103/PhysRevC.4.1889.
13. Ku, T. L., K. G. Knauss, and G. G. Mathieu (1977), Uranium in open ocean: Concentration and isotopic composition, Deep Sea Res., 24(11), 1005-1017, doi:10.1016/0146-6291 (77)90571-9.
14. Potter, E. K., C. H. Stirling, M. B. Andersen, and A. N. Halliday (2005), High precision Faraday collector MC-ICPMS thorium isotope ratio determination, Int. J. Mass Spectrom., 247(1-3), 10-17, doi:10.1016/j.ijms.2005.08.017. (Pubitemid 41735486)
15. Reynolds, B. C., M. Frank, and A. N. Halliday (2006), Silicon isotope fractionation during nutrient utilization in the North Pacific, Earth Planet. Sci. Lett., 244(1-2), 431-443, doi:10.1016/j.epsl.2006.02.002.
16. Richter, S., R. Eykens, H. Kuhn, Y. Aregbe, A. Verbruggen, and S. Weyer (2010), New average values for the n(238U)/n(235U) isotope ratios of natural uranium standards, Int. J. Mass Spectrom., 295, 94-97, doi:10.1016/j.ijms.2010. 06.004.
17. Robinson, L. F., N. S. Belshaw, and G. M. Henderson (2004), U and Th concentrations and isotope ratios in modern carbonates and waters from the Bahamas, Geochim. Cosmochim. Acta, 68(8), 1777-1789, doi:10.1016/j.gca.2003.10. 005. (Pubitemid 38463107)
18. Steiger, R. H., and E. Jager (1977), Subcommission on geochronology: Convention on use of decay constants in geochronology and cosmochronology, Earth Planet. Sci. Lett., 36(3), 359-362, doi:10.1016/0012-821X(77)90060-7.
19. Stirling, C. H., and M. B. Andersen (2009), Uranium-series dating of fossil coral reefs: Extending the sea-level record beyond the last glacial cycle, Earth Planet. Sci. Lett., 284(3-4), 269-283, doi:10.1016/j.epsl.2009.04. 045.
20. Stirling, C. H., M. B. Andersen, E. K. Potter, and A. N. Halliday (2007), Low temperature isotope fractionation of uranium, Earth Planet. Sci. Lett., 264, 208-225, doi:10.1016/j.epsl. 2007.09.019.
21. Swarzenski, P. W., D. Porcelli, P. S. Andersson, and J. M. Smoak (2003), The behavior of U- and Th-series nuclides in the estuarine environment, in Uranium-Series Geochemistry, Rev. in Mineral. and Geochem., vol. 52, pp. 577-606, doi:10.2113/0520577, Mineral. Soc. of Am., Washington, D. C.
22. Weyer, S., A. D. Anbar, A. Gerdes, G. W. Gordon, T. J. Algeo, and E. A. Boyle (2008), Natural fractionation of 238U/235U, Geochim. Cosmochim. Acta, 72(2), 345-359, doi:10.1016/j. gca.2007.11.012.
23. Zimmermann, B., D. Porcelli, M. Frank, J. Rickli, D. C. Leeand, and A. N. Halliday (2009), The hafnium isotope composition of Pacific Ocean water, Geochim. Cosmochim. Acta, 73(1), 91-101, doi:10.1016/j.gca.2008.09.033.