Publication Abstracts

Rampino and Stothers 1988

Rampino, M.R., and R.B. Stothers, 1988: Flood basalt volcanism during the past 250 million years. Science, 241, 663-668, doi:10.1126/science.241.4866.663.

A chronology of the initiation dates of major continental flood basalt volcanism is establshed from published potassium-argon (K-Ar) and argon-argon (Ar-Ar) ages of basaltic rocks and related basic intrusions. The dating is therefore independent of the biostratigraphic and paleomagnetic timescales. Estimated errors of the initiation dates of the volcanic episodes determined from the distributions of the radiometric ages are, approximately, plus or minus 4 percent. There were 11 distinct episodes during the past 250 million years. Sometimes appearing in pairs, the episodes have occurred quasi-periodically with a mean cycle time of 32±1 (estimated error of the mean) million years. The initiation dates of the episodes are close to the estimated dates of mass extinctions of marine organisms. Showers of impacting comets may be the cause.

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BibTeX Citation

@article{ra02000x,
  author={Rampino, M. R. and Stothers, R. B.},
  title={Flood basalt volcanism during the past 250 million years},
  year={1988},
  journal={Science},
  volume={241},
  pages={663--668},
  doi={10.1126/science.241.4866.663},
}

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RIS Citation

TY  - JOUR
ID  - ra02000x
AU  - Rampino, M. R.
AU  - Stothers, R. B.
PY  - 1988
TI  - Flood basalt volcanism during the past 250 million years
JA  - Science
VL  - 241
SP  - 663
EP  - 668
DO  - 10.1126/science.241.4866.663
ER  -

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