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What caused the mass extinction? A volcanic eruption - PubMed

What caused the mass extinction? A volcanic eruption

V E Courtillot. Sci Am. 1990 Oct.

No abstract available

An extraterrestrial impact (accumulating evidence suggests an asteroid or comet caused the Cretaceous extinction).
Alvarez W, Asaro F. Alvarez W, et al. Sci Am. 1990 Oct;263(4):78-84. Sci Am. 1990. PMID: 11536473 No abstract available.
Geological record and reconstruction of the late Pliocene impact of the Eltanin asteroid in the Southern Ocean.
Gersonde R, Kyte FT, Bleil U, Diekmann B, Flores JA, Gohl K, Grahl G, Hagen R, Kuhn G, Sierro FJ, Volker D, Abelmann A, Bostwick JA. Gersonde R, et al. Nature. 1997 Nov 27;390(6658):357-63. doi: 10.1038/37044. Nature. 1997. PMID: 11536816
Inquiring into indicators and origin of catastrophic events at stratigraphic boundaries.
Zhang Q, Xu D. Zhang Q, et al. J Southeast Asian Earth Sci. 1996 Mar-May;13(3-5):373-8. doi: 10.1016/0743-9547(96)00043-8. J Southeast Asian Earth Sci. 1996. PMID: 12747349
Impact process: an important geological phenomenon.
Skala R. Skala R. Sb Nar Muz Praze Rada B. 1996;52(1-4):111-56. Sb Nar Muz Praze Rada B. 1996. PMID: 11541230 Review.
The role of extraterrestrial phenomena in extinction.
Raup DM. Raup DM. Rev Esp Paleontol. 1988;1988(Extraordinario):99-106. Rev Esp Paleontol. 1988. PMID: 11542144 Review.