The Primary Metal Sulfides Emitted from the Black Smokers Are

Question

The primary metal sulfides emitted from the black smokers are ________ sulfides.
A) copper
B) iron
C) magnesium
D) zinc

Accepted Answer

The primary metal sulfides emitted from black smokers are iron sulfides, primarily pyrite (FeS2) and marcasite (FeS2), as well as chalcopyrite (CuFeS2) and sphalerite (ZnS). Magnesium sulfides are not typically found in significant quantities in black smoker emissions.