Author Question: Which process is thought to generate most felsic magmas? A) Decompression melting in a ... (Read 67 times)

kwoodring · **on:** Jul 16, 2018

Which process is thought to generate most felsic magmas?

A) Decompression melting in a continental rift zone
B) Crystal settling during magmatic differentiation
C) Heat from basaltic magma partially melting overlying crust
D) Friction along the crust in a convergent plate boundary

Question 2

A ________ is a tabular, concordant pluton that is nearly horizontal and forms when magma exploits a weakness between sedimentary layers.

A) dike
B) sill
C) batholith
D) laccolith