![File:Banded iron formation (Goldman Meadows Formation, Mesoarchean; Atlantic City Iron Mine, South Pass, Wyoming, USA) 2 (30749219994).jpg - Wikimedia Commons File:Banded iron formation (Goldman Meadows Formation, Mesoarchean; Atlantic City Iron Mine, South Pass, Wyoming, USA) 2 (30749219994).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/7/7c/Banded_iron_formation_%28Goldman_Meadows_Formation%2C_Mesoarchean%3B_Atlantic_City_Iron_Mine%2C_South_Pass%2C_Wyoming%2C_USA%29_2_%2830749219994%29.jpg)
File:Banded iron formation (Goldman Meadows Formation, Mesoarchean; Atlantic City Iron Mine, South Pass, Wyoming, USA) 2 (30749219994).jpg - Wikimedia Commons
![BANDED IRON FORMATION Banded iron formations, or BIFs, are iron-rich, marine sedimentary deposits that generally consist of alternating bands of reddish & dark-colored minerals. The red layers are typically red chert ("jasper" - cryptocrystalline quartz ... BANDED IRON FORMATION Banded iron formations, or BIFs, are iron-rich, marine sedimentary deposits that generally consist of alternating bands of reddish & dark-colored minerals. The red layers are typically red chert ("jasper" - cryptocrystalline quartz ...](http://www.jsjgeology.net/Banded-iron-formation_files/image002.jpg)
BANDED IRON FORMATION Banded iron formations, or BIFs, are iron-rich, marine sedimentary deposits that generally consist of alternating bands of reddish & dark-colored minerals. The red layers are typically red chert ("jasper" - cryptocrystalline quartz ...
![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 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](https://upload.wikimedia.org/wikipedia/commons/b/b0/Jaspilite_banded_iron_formation_%28BIF%29_%28Negaunee_Iron-Formation%2C_Paleoproterozoic%2C_1.874_or_2.11_Ga%3B_Jasper_Knob%2C_Ishpeming%2C_Michigan%2C_USA%29_246.jpg)