Magmatic segregation occurs when ________.
A) light minerals crystallize early and migrate through fractures in rock
B) heavy minerals crystallize early and settle to the lower part of the magma chamber
C) high-pressure conduits carry crystals to the surface
D) hot, metal-rich fluids migrate through fractures in rock
Question 2
________ is a high-pressure ultramafic rock, often containing diamonds, which is carried to the surface in tapered volcanic pipes.
A) Pegmatite
B) Migmatite
C) Kimberlite
D) Platinum
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