Banded ironstone formation theory challenges current thinking by Geoff Vivian, Science Network WA Banded Iron Formation at Fortescue Falls, Karijini National Park.

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, ...

Banded iron formations are the primary source of iron ore worldwide. These rocks, at Soudan Underground Mine State Park, Minnesota, shows banding caused by layers of different minerals in a sample ...

At 2.5 billion years old and weighing in at 2.5 tonnes, the banded iron formation is so heavy that Museum engineers had to reinforce the floor underneath it in Hintze Hall. 'The rock tells a ...

Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago. That's the ...

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 : ...

The orange, yellow, silver, brown and blue-tinged black layers in banded iron formations do more than just look pretty. Copper $ 4.847 / lb -0.48% Brent Crude Oil $ 64.13 / bbl -0.28% ...

The banded iron formation, located in western China, has been conclusively dated as Cambrian in age. Approximately 527 million years old, this formation is young by comparison to the majority of ...