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Science 23 April 1999:
Vol. 284. no. 5414, pp. 604 - 605
DOI: 10.1126/science.284.5414.604
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Perspectives

Also see the archival list of Science's Compass: Enhanced Perspectives

GEOSCIENCE:
Enhanced: Giant Lava Flows, Mass Extinctions, and Mantle Plumes

Paul E. Olsen

A number of immense volcanic events throughout the history of Earth may have influenced the movement of continents, past global climate, and the mass extinction of species. In his Perspective, Olsen discusses work reported in the same issue by Marzoli et al. on what may be the largest such volcanic episode, the result of which is known as the Central Atlantic Magmatic Province. The lava flows of this event, thought to have occurred some 200 million years ago, cover more than 7 million square kilometers. As Olsen describes, everything about these large magmatic events is controversial, but Marzoli et al. have found evidence that the formation of the CAMP coincided with a mass extinction at the Triassic-Jurassic boundary.

The author is at the Lamont Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA. E-mail: polsen{at}ldeo.columbia.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Gas Fluxes from Flood Basalt Eruptions.
S. Self, T. Thordarson, and M. Widdowson (2005)
Elements 1, 283-287
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Geochemistry of the Early Jurassic Messejana-Plasencia dyke (Portugal-Spain); Implications on the Origin of the Central Atlantic Magmatic Province.
J. M. CEBRIA, J. LOPEZ-RUIZ, M. DOBLAS, L. T. MARTINS, and J. MUNHA (2003)
J. Petrology 44, 547-568
   Abstract »    Full Text »    PDF »
Africa's petroleum systems: four tectonic 'Aces' in the past 600 million years.
K. Burke, D. S. MacGregor, and N. R. Cameron (2003)
Geological Society, London, Special Publications 207, 21-60
   Abstract »    PDF »


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