Which of the magma systems shown is likely to contain mostly basalt?
A)A
B)B
C)C
D)all of the locations
E)locations A and B only

Question

Which of the magma systems shown is likely to contain mostly basalt? 
A)A 
B)B 
C)C 
D)all of the locations 
E)locations A and B only

Quizplus · Accepted Answer

Locations A and B are both connected to oceanic crust, which is typically associated with basaltic magma. Locations C and D are connected to continental crust, which can produce more felsic magmas such as rhyolite. Therefore, the magma systems at locations A and B are most likely to contain mostly basalt.

Which of the Magma Systems Shown Is Likely to Contain