Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

Geologists in Western Australia have uncovered the largest iron ore deposit ever recorded—an astonishing 55 billion metric tons. This discovery is not just a milestone for the mining industry but a ...

"One hypothesis is that the phototrophic iron oxidizers probably contributed very little to the formation of banded iron ores in later phases of the Earth's history," says Kappler. This is because ...

An example of the 3.7 billion year old banded iron formation that is found in the northeastern part of the Isua Supracrustal Belt. Credit: Claire Nichols. The image can be used for editorial ...

Precambrian Homestake Banded Iron Formation ("BIF") was intersected in both GC-009 and GC-010. This is the only area outside of the immediate Homestake district that Homestake BIF has been identified.

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 ...

Banded iron formations studied by the authors showing the alternation between iron-rich (red) and silica-rick (white) layers. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy ...