These sedimentary deposits have distinctive, rhythmic bands of reddish iron and paler silica. They were alternately laid down on the sea floor seasonally. Such remarkable rocks can be visited today in ...

The image shows Joffre Gorge in Karijini National Park, Western Australia. This gorge cuts through the largest known banded iron formation in the world: the 2.46-billion-year-old, ...

The paper, "Hydrogeological constraints on the formation of Palaeoproterozoic banded iron formations," was published in Nature Geoscience (doi: 10.1038/s41561-019-0372-0). Journal Nature Geoscience ...

Hydrogeological constraints on the formation of Palaeoproterozoic banded iron formations. Nature Geoscience , 2019; DOI: 10.1038/s41561-019-0372-0 Cite This Page : ...

Karijini National Park is a beautiful and rugged national park located in the Pilbara region of Western Australia. It covers an area of 627,422 acres and is known for its dramatic gorges ...

Metamorphosed banded iron formation from southern Wyoming showing deformation and folding. The rock is approximately 2.7 billion years old. Dark bands are iron oxides (magnetite, hematite) and ...

Precambrian banded iron deposits (banded iron formation) in South Africa. Credit: Andreas Kappler Microscopic images of a culture of phototrophic iron oxidizers (Rhodobacter ferrooxidans SW2).

Precambrian banded iron deposits (banded iron formation) in South Africa. Credit: Andreas Kappler Early in the Earth's development, the atmosphere contained no oxygen.