Hydrothermal Vein Deposits

question 24

Multiple Choice

Hydrothermal vein deposits:

• A) form when dissolved metals precipitate in a fracture in rock.
• B) can yield several million dollars worth of gold and silver.
• C) form placer deposits.
• D) a and b

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Definitions:

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A measure of production time where one machine-hour equals the operation of one machine for one hour.

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The total hours worked by employees directly involved in the manufacturing process, used as a base for allocating overhead costs to products.

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A manufacturing process involving the shaping of metal or other materials through controlled material-removal techniques.

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