Keeping Time with Earth's Heaviest Element

238U/235U Systematics in Terrestrial Uranium-Bearing Minerals

(2012) J. Hiess et al.   SCIENCE

Natural variations in uranium isotope ratios of uranium ore concentrates: Understanding the 238U/235U fractionation mechanism

(2010) Gregory A. Brennecka et al.   EARTH AND PLANETARY SCIENCE LETTERS

U–Pb chronology of the Solar System's oldest solids with variable 238U/235U

(2010) Yuri Amelin et al.   EARTH AND PLANETARY SCIENCE LETTERS

Uranium238U/235U Isotope Ratios as Indicators of Reduction: Results from an in situ Biostimulation Experiment at Rifle, Colorado, U.S.A.

(2010) Charles John Bopp et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Global enhancement of ocean anoxia during Oceanic Anoxic Event 2: A quantitative approach using U isotopes

(2010) Carolina Montoya-Pino et al.   GEOLOGY

238U/235U Variations in Meteorites: Extant 247Cm and Implications for Pb-Pb Dating

(2010) G. A. Brennecka et al.   SCIENCE

Variations in 238U/235U in uranium ore deposits: Isotopic signatures of the U reduction process?

(2009) Charles John Bopp et al.   GEOLOGY

Natural fractionation of 238U/235U

(2007) S. Weyer et al.   GEOCHIMICA ET COSMOCHIMICA ACTA