Author Question: At convergent plate boundaries, more viscous magmas, usually of felsic composition, are emplaced as ... (Read 77 times)

WhattoUnderstand · **on:** Jul 13, 2018

At convergent plate boundaries, more viscous magmas, usually of felsic composition, are emplaced as ____, thus accounting for the explosive eruptions that typically occur there.
A)supervolcanoes
B)plutons
C)fissures
D)lava domes
E)cinder cones

Question 2

Each of the major continents at the beginning of the Paleozoic had two major components. These were a(n) ____.
A)trough and a range
B)craton and a mobile belt
C)immobile belt and a rift margin
D)craton and a ocean basin
E)volcano and a desert