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Synchronism of the Siberian Traps and the Permian-Triassic Boundary
Abstract
Uranium-lead ages from an ion probe were taken for zircons from the ore-bearing Noril'sk I intrusion that is comagmatic with, and intrusive to, the Siberian Traps. These values match, within an experimental error of ±4 million years, the dates for zircons extracted from a tuff at the Permian-Triassic (P-Tr) boundary. The results are consistent with the hypothesis that the P-Tr extinction was caused by the Siberian basaltic flood volcanism. It is likely that the eruption of these magmas was accompanied by the injection of large amounts of sulfur dioxide into the upper atmosphere, which may have led to global cooling and to expansion of the polar ice cap. The P-Tr extinction event 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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Cited by
Large igneous provinces: Crustal structure, dimensions, and external consequences
Coffin, M. F., & Eldholm, O. (1994) · Reviews of Geophysics · doi:10.1029/93rg02508 · Cited by 1,544
On causal links between flood basalts and continental breakup
Courtillot, V, Jaupart, C., Manighetti, I., Tapponnier, P., & Besse, J. (1999) · Earth and Planetary Science Letters · doi:10.1016/s0012-821x(98)00282-9 · Cited by 769
On the ages of flood basalt events
Courtillot, V. E., & Renne, P. R. (2003) · Comptes Rendus. Géoscience · doi:10.1016/s1631-0713(03)00006-3 · Cited by 727
Pattern of Marine Mass Extinction Near the Permian-Triassic Boundary in South China
Jin, Y. G., Wang, Y., Wang, W., Shang, Q. H., Cao, C. Q., & Erwin, D. H. (2000) · Science · doi:10.1126/science.289.5478.432 · Cited by 664
Zhou, M.-F., Malpas, J., Song, X.-Y., Robinson, P. T., Sun, M., Kennedy, A. K., Lesher, C. M., & Keays, R. R. (2002) · Earth and Planetary Science Letters · doi:10.1016/s0012-821x(01)00608-2 · Cited by 620
Metadata
- Authors
- Campbell, I. H., Czamanske, G. K., Fedorenko, V. A., Hill, R. I., & Stepanov, V.
- Venue
- Science
- Published
- 1992-12-11
- Volume
- 258
- Issue
- 5089
- Pages
- 1760-1763
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1973305248
- Cited by
- 413
- References
- 0
- FWCI
- 10.68
- Type
- journal article
- Language
- en
- Open access
- closed
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- Campbell, I. H., Czamanske, G. K., Fedorenko, V. A., Hill, R. I., & Stepanov, V. (1992). Synchronism of the Siberian Traps and the Permian-Triassic Boundary. Science. https://doi.org/10.1126/science.258.5089.1760
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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