The study of banded iron formations (BIFs) offers a unique window into early Earth’s geochemical cycles and the evolution of its oceans and atmosphere. These sedimentary deposits, characterised by ...

HOUSTON – (May 25, 2023) – Visually striking layers of burnt orange, yellow, silver, brown and blue-tinged black are characteristic of banded iron formations, sedimentary rocks that may have prompted ...

This photo shows an example of the 3.7 billion year-old banded iron formation found in the northeastern part of the Isua Supracrustal Belt. Geologists at MIT and Oxford University have uncovered ...

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. An example of the 3.7 billion year old banded ...