Abstract
Bugry and Shaw direct attention to interference of the widely used boron line at 2497.73 Å by an iron line at 2497.82 Å. They clearly demonstrate that iron interference seriously compromises results obtained from samples rich in iron (8 per cent Fe2O3) and low in boron (∼ 30 p.p.m. boron). They suggest that iron correlates positively with K2O (and hence illite) in shales; and conclude that many published boron determinations might be in error and that iron interference might explain the observed positive correlation between K2O and boron in argillaceous materials.
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References
Frederickson, A. F., and Reynolds, R. C., Clays and Clay Minerals, Proc Eighth Nat. Conf., 202 (1960).
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Walker, C. T., and Price, N. B., Bull. Amer. Assoc. Pet. Geologists, 47, 833 (1963).
Reynolds, R. C., Geochim. Cosmochim. Acta, 27, 1097 (1963).
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REYNOLDS, R. Unreliable Boron Analyses in Palæosalinity Investigations. Nature 201, 1315–1316 (1964). https://doi.org/10.1038/2011315a0
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DOI: https://doi.org/10.1038/2011315a0
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