When Considering Hydrothermal Deposits, Vein- or Fissure-Filling Deposits of Metallic

question 56

Multiple Choice

When considering hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as gold or silver are common in ________.

• A)rocks of a contact-metamorphic zone that formed around a shallow granite pluton
• B)pyroclastic materials erupted from a stratovolcano
• C)impact structures from meteorites
• D)rocks that form in high-pressure subduction zones

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