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sopmit sopmit
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6 years ago

Describe and discuss the formation of the Proterozoic Banded Iron Formations (BIFs). What are
  they composed of? Why are these BIFs economically important? What will be an ideal response?

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wrote...
6 years ago

BIFs are composed of the iron oxide minerals hematite and magnetite interbedded with layers of
chert. The increasing oxygen contained in Earths atmosphere caused precipitation of these iron
oxides from seawater. BIFs are important sources of iron for industrial purposes.

sopmit Author
wrote...
6 years ago
I'd be lost without you
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