Modern Life Depends on This Extinct Rock | Banded Iron Formations
Key Topics:
Jasper Knob, Negaunee, Michigan
What is banded iron formation?
What banded iron formation is made of
How BIFs may have formed, and why it’s a mystery
How old is Jasper Knob
Why banded iron formations are so important to the modern iron industry
Why BIFs may have gone “extinct”
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