Flood basalts such as those found in the Columbia Plateau and the Deccan region are associated with
A) subduction zones.
B) superplumes.
C) mid ocean ridges.
D) rifts.

Question

Quizplus · Accepted Answer

Flood basalts such as those found in the Columbia Plateau and the Deccan region are associated with superplumes, which are large and long-lived mantle plumes that can lead to massive volcanic eruptions, such as flood basalts. Subduction zones are associated with volcanic arcs, mid ocean ridges are associated with seafloor spreading, and rifts are associated with divergent boundaries and can lead to volcanic activity, but they are not typically associated with flood basalts.

Flood Basalts Such as Those Found in the Columbia Plateau