A ________ is a type of ore deposit that forms when sulfide minerals crystallize in lenses or bands directly from magma.
A) hydrothermal ore
B) placer
C) Mississippi-Valley-Type deposit
D) massive sulfide deposit

Question

Quizplus · Accepted Answer

Massive sulfide deposit forms directly from magma through a process of hydrothermal circulation where the hot fluids in volcanic environments seep into the ocean to crystallize sulfide minerals that form massive deposits.

A ________ Is a Type of Ore Deposit That Forms