Banded Iron Formation

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Description

A nearly 3-billion-year-old banded iron formation from Canada shows that the atmosphere and ocean once had no oxygen. 

Banded-iron formation (BIF)

Fossilized iron bacteria reveal a pathway to the biological origin

banded iron formation

Banded iron formation from Michigan, USA

Banded iron formation - Wikipedia

Learning Geology: Banded-iron formations (BIFs) - Evidence of Oxygen in Early Atmosphere

Magnetite banded iron formation (Soudan Iron-Formation, Ne…

Welcome to Stephen Hui Geological Museum

File:Glacially eroded jaspilite banded iron formation outcrop

Banded iron formations: Oceans, algae and iron oxide

Fri., Aug. 26 notes

Treasure/Banded Iron Formation

Banded Iron Formation - an overview

File:Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 246.jpg - Wikimedia Commons