Multiple Choice
What is the main way that gold ore forms in association with a caldera? 
A) hot water flows along the margins of a caldera
B) pieces of gold are weathered from the rim of the caldera and deposited in the center
C) pyroclastic eruptions throw rock fragments into the air,and the heavier gold pieces settle first
D) calderas can form lakes and gold precipitates from the evaporating water
Correct Answer:
Verified
Correct Answer:
Verified
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