Glass from the Cretaceous/Tertiary boundary in Haiti

Haraldur Sigurdsson, Steven D'Hondt, Michael Allan Arthur, Timothy Bralower, James C. Zachos, Mickey Van Fossen, James E.T. Channel

Research output: Contribution to journalArticle

154 Citations (Scopus)

Abstract

Tektite-like glasses preserved at the Cretaceous/Tertiary boundary at Beloc in Haiti provide clear evidence of an impact event. The glass composition suggests that the impact occurred on a continental shelf region, generating a silica-rich glass with chemical composition that reflects the melting of continental crustal rocks, and a calcium-rich glass produced by the fusion of marl sediments. These findings indicate that catastrophic release to the atmosphere of 1015 moles of C02 from vaporized marl occurred during the impact.

Original languageEnglish (US)
Pages (from-to)482-487
Number of pages6
JournalNature
Volume349
Issue number6309
DOIs
StatePublished - Jan 1 1991

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glass
marl
tektite
continental shelf
melting
silica
calcium
chemical composition
atmosphere
rock
sediment

All Science Journal Classification (ASJC) codes

  • General

Cite this

Sigurdsson, H., D'Hondt, S., Arthur, M. A., Bralower, T., Zachos, J. C., Van Fossen, M., & Channel, J. E. T. (1991). Glass from the Cretaceous/Tertiary boundary in Haiti. Nature, 349(6309), 482-487. https://doi.org/10.1038/349482a0
Sigurdsson, Haraldur ; D'Hondt, Steven ; Arthur, Michael Allan ; Bralower, Timothy ; Zachos, James C. ; Van Fossen, Mickey ; Channel, James E.T. / Glass from the Cretaceous/Tertiary boundary in Haiti. In: Nature. 1991 ; Vol. 349, No. 6309. pp. 482-487.
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Sigurdsson, H, D'Hondt, S, Arthur, MA, Bralower, T, Zachos, JC, Van Fossen, M & Channel, JET 1991, 'Glass from the Cretaceous/Tertiary boundary in Haiti', Nature, vol. 349, no. 6309, pp. 482-487. https://doi.org/10.1038/349482a0

Glass from the Cretaceous/Tertiary boundary in Haiti. / Sigurdsson, Haraldur; D'Hondt, Steven; Arthur, Michael Allan; Bralower, Timothy; Zachos, James C.; Van Fossen, Mickey; Channel, James E.T.

In: Nature, Vol. 349, No. 6309, 01.01.1991, p. 482-487.

Research output: Contribution to journalArticle

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Sigurdsson H, D'Hondt S, Arthur MA, Bralower T, Zachos JC, Van Fossen M et al. Glass from the Cretaceous/Tertiary boundary in Haiti. Nature. 1991 Jan 1;349(6309):482-487. https://doi.org/10.1038/349482a0