Question

Secondary enrichment creates concentrations of metals by ________.

A. accumulating them around a black smoker vent
B. precipitating them into cracks in preexisting rocks
C. leaching them from one area and precipitating them elsewhere
D. accumulating them on the seafloor

Answer 1

Answer:

C. leaching them from one area and precipitating them elsewhere

Explanation:

The secondary enrichment zone is formed by the deposition of metals which are leached from above zone by the action of ground water deposition the leached metals somewhere else. Similarly, the copper deposits are also formed.

Thus the option C is the most appropriate answer to the given question.