What Is the Heat Source for "Black Smokers

question 79

Multiple Choice

What is the heat source for "black smokers"?

• A) biologic heat from thermophyllic bacteria and densely populated vent communities
• B) chemical oxidation of sulphide minerals below the seafloor
• C) magmatic heat below the seafloor
• D) deeply circulating currents of hot, dense ocean brines, deflected to follow the ridge system

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