The layers you see in this image were once iron-rich and silica-rich sediments that settled on an ancient sea floor 2.7–2.4 billion years ago. Credit: The Australian Museum The layers you see in this ...

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 ...

Formation process of iron concretion on Earth and Mars. This material relates to a paper that appeared in the Dec. 5th, 2018, issue of Science Advances, published by AAAS. The paper, by H. Yoshida at ...

Earth scientists often face huge challenges when researching Earth's history: many significant events occurred such a long time ago that there is little direct evidence available. Consequently, ...

Scientists know iron oxide minerals store large amounts of carbon in soils, but lack a detailed, quantitative understanding of the specific chemical mechanisms that allow them to bind such a wide ...