Why most “dry” rocks should cool “wet”, by M.J. Kohn (vol. 84, 570–580, 1999)

In comparing plots of oxygen isotope diffusivities vs. temperature in Kohn (1999) vs. Peck et al. (2003; also Watson and Cherniak 1997), it was realized that the tabulated pre-exponential terms for oxygen diffusion rates in zircon for wet and buffered conditions were systematically too high by 2 orders of magnitude in Kohn (1999).


The correct table for zircon should read:

Note that this correction reconciles much of the difference inferred by Peck et al. between their empirical diffusion rates, and the buffered model...

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