What factor(s)led to the enormous scale of banded iron deposition during the Proterozoic?

Question

Quizplus · Accepted Answer

The enormous scale of banded iron deposition during the Proterozoic was likely caused by a combination of factors, including the abundance of dissolved iron in seawater, an increase in photosynthesizing bacteria, and the chemical affinity of iron to combine with available oxygen. Therefore, all of these factors contributed to the formation of banded iron deposits.

What Factor(s)led to the Enormous Scale of Banded Iron Deposition