Abstract
Fission track ages of pumice from the KBS Tuff have been redetermined using carefully controlled etching and counting procedures. Primary igneous zircons from five pumice samples give a mean age of 1.87 ± 0.04 Myr. The presence of detrital minerals of two different age groups has important implications for the controversy over the age of this tuff.
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Gleadow, A. Fission track age of the KBS Tuff and associated hominid remains in northern Kenya. Nature 284, 225–230 (1980). https://doi.org/10.1038/284225a0
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DOI: https://doi.org/10.1038/284225a0
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