The metal ores that are found in veins within plutons typically occur ________.
A) by themselves as pure mineral assemblages
B) together with other ores but no other minerals
C) alongside abundant calcite
D) alongside abundant quartz

Question

Quizplus · Accepted Answer

Plutonic rocks are rich in silica, which is favorable for the formation of quartz. Therefore, metal ores found in veins within plutons typically occur alongside abundant quartz.

The Metal Ores That Are Found in Veins Within Plutons