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Figure 4. Values of
34S and
18O of residual sulfate at Sites 975 (down to 47 mbsf), 976, 977, and 979 as a function of the natural logarithm of the residual sulfate fraction of original sulfate remaining (F). Numbers are sulfur isotope fractionation factors calculated from the regression lines (see text).
![](images/29_f04.jpg)
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