The late Pleistocene eruption of Toba is the largest magnitude explosive eruption documented from the Quaternary. K-Ar dating of the uppermost unit of the Toba Tuff gives an age of [~amp]sim; 75,000 yr. A chemically and petrographically equivalent ash layer in deep-sea cores helps calibrate the Stage 4-5 boundary of the standard oxygen isotope stratigraphy. A similar ash in Malaya that overlies finds of Tampan Palaeolithic tools indicates that they are older than 75,000 yr. © 1978 Nature Publishing Group.
CITATION STYLE
Ninkovich, D., Shackleton, N. J., Abdel-Monem, A. A., Obradovich, J. D., & Izett, G. (1978). K-Ar age of the late Pleistocene eruption of Toba, north Sumatra. Nature, 276(5688), 574–577. https://doi.org/10.1038/276574a0
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