Multiple Choice
The huge volume of mafic magma that erupted to form the Columbia plateau basalts of Washington and Oregon are attributed to ___.
A) sea floor spreading
B) a hot mantle plume
C) subduction
D) magma mixing
E) meteorite impact
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q34: Mafic magma generated in the _ rises
Q35: _ is the predominant igneous rock of
Q36: Diorite and andesite are composed of similar
Q37: The melting point of a rock decreases
Q38: What is the process through which magma
Q40: A dike is a discordant intrusive igneous
Q41: The most common minerals in a granite
Q42: _ rocks have coarse crystals in a
Q43: The term mafic comes from the terms
Q44: Igneous rocks may be either _ if