Multiple Choice
Crystal settling from magma occurs:
A) whenever metal-bearing solutions encounter changing conditions that cause precipitation.
B) when surface streams slow down and deposit sediment.
C) when the lightest crystals rise to the top of a magma chamber.
D) when early formed crystals sink to the bottom of a magma chamber.
Correct Answer:

Verified
Correct Answer:
Verified
Q50: _ processes form mineral deposits as liquid
Q51: A/an _ _ deposit forms when dissolved
Q52: In a placer deposit, gold settles out
Q53: On the average, more than half of
Q54: _ is any rock sufficiently enriched in
Q55: Mineral reserves:<br>A) can increase because new and
Q56: Mining of sand and gravel has made
Q57: The color of _ is caused by
Q59: A black smoker is an example of
Q60: Bauxite is an example of a residual