Plateau Basalt

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.