Rapid Eruption of the Siberian Traps Flood Basalts at the Permo-Triassic Boundary

@article{Renne1991RapidEO,
  title={Rapid Eruption of the Siberian Traps Flood Basalts at the Permo-Triassic Boundary},
  author={Paul R. Renne and Asish R. Basu},
  journal={Science},
  year={1991},
  volume={253},
  pages={176 - 179}
}
The Siberian Traps represent one of the most voluminous flood basalt provinces on Earth. Laser-heating 40Ar/39Ar data indicate that the bulk of these basalts was erupted over an extremely short time interval (900,000 � 800,000 years) beginning at about 248 million years ago at mean eruption rates of greater than 1.3 cubic kilometers per year. Such rates are consistent with a mantle plume origin. Magmatism was not associated with significant lithospheric rifting; thus, mantle decompression… 
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TLDR
The results are consistent with the hypothesis that the P-Tr extinction was caused by the Siberian basaltic flood volcanism and may have been caused by a combination of acid rain and global cooling as well as rapid and extreme changes in sea level resulting from expansion of the polar ice cap.
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High-3He Plume Origin and Temporal-Spatial Evolution of the Siberian Flood Basalts
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Geochemical data from the 250-million-year-old volcanic rocks higher up in the sequence indicate interaction of this high-3He SFBP plume with a suboceanic-type upper mantle beneath Siberia.
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There were 11 distinct episodes of major continental flood basalt volcanism during the past 250 million years, and the initiation dates of the episodes are close to the estimated dates of mass extinctions of marine organisms.
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    Proceedings of the National Academy of Sciences of the United States of America
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TLDR
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