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

Snowball Earth's iron deposits may have formed through microbes living without sunlight
Phys.org Thursday 08 October 2026, 00:00 UTC 1 min read
Key Points

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 accumulate in the oceans.

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 accumulate in the oceans.
Snowball Earth's (ORG) Earth (LOCATION)
Originally published by Phys.org Read original →

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