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Plateau Basalt

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plateau basalt [pla′tō bə′sȯlt]
(geology)
One or a succession of high-temperature basaltic lava flows from fissure eruptions which accumulate to form a plateau. Also known as flood basalt.

Plateau Basalt 

a basalt that forms usually extensive sheets on tectonically stable areas that have not undergone folding. It is assumed that the composition of plateau basalt most fully reflects the composition of abyssal basaltic magmas.



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In chemical composition, the Kerguelen plateau basalts are a rare intermediate between two types of basalt: those that flow out of midocean ridges and those that erupt out of hotspot locations such as Hawaii.
 
 
 
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