K-Ar age of the late Pleistocene eruption of Toba, north Sumatra
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 Information
Publication Year | 1978 |
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Title | K-Ar age of the late Pleistocene eruption of Toba, north Sumatra |
DOI | 10.1038/276574a0 |
Authors | D. Ninkovich, N. J. Shackleton, A. A. Abdel-Monem, J.D. Obradovich, G. Izett |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Nature |
Index ID | 70012548 |
Record Source | USGS Publications Warehouse |