How Does Iron Formation Form - In oxygenated water, all the iron (iii) forms. Iron formations are similar to ironstones but are mainly precambrian (ironstones are phanerozoic). Some iron (ii) will react with sulfur, forming iron pyrite, which gets incorporated into rock. They formed throughout much of the. Banded iron formations (bifs) comprise the largest iron resource on earth.
Some iron (ii) will react with sulfur, forming iron pyrite, which gets incorporated into rock. Banded iron formations (bifs) comprise the largest iron resource on earth. In oxygenated water, all the iron (iii) forms. They formed throughout much of the. Iron formations are similar to ironstones but are mainly precambrian (ironstones are phanerozoic).