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Objective The origin of ancient banded iron formation(BIF)has remained unclear for a long time.How the precipitation process occurred and what the environmental condition was have been widely discussed among scientists,because the period when the major BIFs deposited(~2.8 to 1.8Ga)is the same time when biosphere and atmosphere
Objective The origin of ancient banded iron formation (BIF) has been unclear for a long time.How the precipitation process occurred and what the environmental condition was have been been discussed among scientists, because the period when the major when BIFs deposited (~ 2.8 to 1.8 Ga) is the same time when when biosphere and atmosphere