Publication Abstracts

Stothers 1993

Stothers, R.B., 1993: Flood basalts and extinction events. Geophys. Res. Lett., 20, 1399-1402, doi:10.1029/93GL01381.

The largest known effusive eruptions during the Cenozoic and Mesozoic Eras, the voluminous flood basalts, have long been suspected as being associated with major extinctions of biotic species. Despite the possible errors attached to the dates in both time series of events, the significance level of the suspected correlation is found here, by an objective, direct method, to be 1% to 4%. Statistically, extinctions lag eruptions by a mean time interval that is indistinguishable from zero, being much less than the average residual derived from the correlation analysis. Oceanic flood basalts, however, must have a different biological impact, which is still uncertain owing to the small number of known examples and differing physical factors. Although not all continental flood basalts can have produced major extinction events, the non-correlating eruptions (including most or all of the oceanic flood basalts) may have led to smaller marine extinction events that terminated at least some of the less catastrophically ending geologic stages. Consequently, the 26 Myr quasiperiodicity seen in major marine extinctions may be only a sampling effect, rather than a manifestation of underlying periodicity.

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BibTeX Citation

  author={Stothers, R. B.},
  title={Flood basalts and extinction events},
  journal={Geophysical Research Letters},

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RIS Citation

ID  - st02700w
AU  - Stothers, R. B.
PY  - 1993
TI  - Flood basalts and extinction events
JA  - Geophys. Res. Lett.
JO  - Geophysical Research Letters
VL  - 20
SP  - 1399
EP  - 1402
DO  - 10.1029/93GL01381
ER  -

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