New Techniques for Stable Isotope Analysis of Ultra-small Samples  

Zircons Are Forever

The Earliest Piece of the Earth A Cool Early Earth UW-Madison Stable Isotope Lab UW-Madison Geoscience
Kita NT, Takayuki Ushikubo, Bin Fu and John W. Valley (2009) High Precision SIMS Oxygen Isotope Analyses and the Effect of Sample Topography, Chemical Geology, doi:10.1016/j.chemgeo.2009.02.012. 264: 43-57. View pdf

Valley JW and Kita NT (2009) In situ Oxygen Isotope Geochemistry by Ion Microprobe, In: Fayek M. (ed) MAC Short Course: Secondary Ion Mass Spectrometry in the Earth Sciences, v 41, 19-63. View pdf

Page F. Zeb, Ushikubo, Taka, Kita, Noriko T, Riciputi, Lee R., Valley, John W. (2007) High precision oxygen isotope analysis of picogram samples reveals 2-mm gradients and slow diffusion in zircon. American. Mineralogist. 92:1772-1775. View pdf

Spicuzza, Michael J., Day James M.D., Taylor, Lawrence A., Valley, John W. (2007) Oxygen Isotope constraints on the origin and differentiation of the Moon. Earth Planetary Science Letters 253:254-265. View pdf

Kita, N.T., Ikeda, Y., Togashi, S., Liu, Y.Z., Morishita, Y. and Weisberg, M.K. (2004) Origin of ureilites inferred from a SIMS oxygen isotopic and trace element study of clasts in the Dar al Gani 319 polymict ureilite. Geochim. Cosmochim. Acta. 68, 4213-4235. View pdf

Valley, J.W., Graham, Colin M., Harte, Ben, Eiler, John M., and Kinny, Peter D. (1998) Ion Microprobe Analysis of Oxygen, Carbon, and Hydrogen Isotope ratios. In: Applications of Microanalytical Techniques to Understanding Mineralizing Processes, McKibben, M.A., Shanks,  W.C., III, and Ridley, W.I. (eds.). S.E.G. Review in Economic Geology, v. 7, p. 73-97.

Eiler, John M., Graham, Colin, Valley, John W. (1997) SIMS analysis of oxygen isotopes: matrix effects in complex minerals and glasses. Chemical Geology, v. 138, pp. 221-244.
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Valley, John W. and Graham, Colin, M. (1991) Ion microprobe analysis of oxygen isotope ratios in granulite facies magnetites: diffusive exchange as a guide to cooling history. Contributions to Mineralogy and Petrology, v. 109, p. 38-52.

Valley, John W., Kitchen, Nami, Kohn, Matthew J., Niendorf, Christopher R., and Spicizza, Michael J. (1995) UWG-2, a garnet standard for oxygen isotope ratios: Strategies for high precision and accuracy with laser heating. Geochimica et Cosmochimica Acta, v. 59, n. 24, p. 5523-5531.

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Spicuzza, M.J., Valley, J.W., Kohn, M.J., Girard, J.P. and Fouillac, A.M. (1998) The rapid heating, defocused beam technique: a CO2-laser-based method for highly precise and accurate determination of δ
18O values of quartz. Chemical Geology, v. 144, p. 195-203.
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Crowe, Douglas, E., Valley, John W., and Baker, Kevin L. (1990) Micro-analysis of sulfur-isotope ratios and zonation by laser microprobe. Geochimica et Cosmochimica Acta, v. 54, p. 2075-2092

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