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flood basalt
(redirected from Flood volcanism)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
flood basalt
n
(Earth Sciences / Geological Science) a very extensive lava flow of basaltic composition that has issued from a fissure, often to be found as part of a series of such flows one on top of another, forming a plateau See fissure eruption


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Unlike the Cretaceous-Tertiary event, the combination of the Logoisk impact and the Afro-Arabain flood volcanism does not seem to have caused an extinction event.
Finally, the environmental consequences of accelerated volcanism are well known historically from Iceland, and the related effects were undoubtedly massive during critical periods of flood volcanism in the geological past.
Unlike the Cretaceous-Tertiary event, the combination of the Logoisk impact and the Afro-Arabain flood volcanism does not seem to have caused an extinction event.
 
 
 
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