Snowball Earth's iron deposits may have formed through microbes living without sunlight

Iron is one of the most abundant metals on Earth's surface, yet how such massive iron ore deposits formed throughout geological history has long remained a mystery. The prevailing theory has been that ancient photosynthetic bacteria oxidized iron, causing it to precipitate and ac This story matters for Science & Discovery readers tracking insect. Reported by phys.org. Read the full original at the source link below.