Uranium isotope systematics of a low-productivity ferruginous ocean analog: Implications for the uranium isotope record of early Earth

GJ Gilleaudeau, X Chen, SJ Romaniello… - … et Cosmochimica Acta, 2025 - Elsevier
The uranium isotope (δ 238 U) paleo-redox proxy has emerged as a premier tool for
understanding ocean oxygenation through Earth's history. The fidelity of this important proxy …

Origin of the giant Devonian Daxigou sedimentary siderite deposit, Central China

YJ Lyu, MF Zhou, RZ Hu, ZR Liu, Y Zhao - Mineralium Deposita, 2024 - Springer
Sedimentary Fe deposits are both scientifically and economically important. As a major ore
mineral of these deposits, siderite is generally assumed to have been formed via diagenetic …

[HTML][HTML] The Barberton Drilling Project's Buck Reef Chert core BARB3–Sedimentary facies and depositional environment of a 3.4 Ga marine platform succession

A Hofmann - Precambrian Research, 2024 - Elsevier
Abstract The∼ 3.4-billion-years old Buck Reef Chert (BRC) is a∼ 400 m thick succession of
banded chert and iron-formation that has proved to be an important site for the study of …

Local-scale hydrogeologic controls on groundwater discharge to a ferruginous meromictic kettle lake

R Kniptash, SA Akam, ED Swanner, JR Meyer - Hydrogeology Journal, 2025 - Springer
Local-scale groundwater/surface-water exchange can be a critical control on the flux of
nutrients, iron, and other elements to ferruginous (iron-rich) meromictic (permanently …