@inproceedings{ae0c9eed1eea497481dcb04a9bb1df4e,
title = "Isotopic fractionation of U in rocks reflecting redox conditions around a groundwater flow route",
abstract = "Low 234U/238U activity ratios observed in rock and mineral samples were scrutinized. U isotope fractionation leading to 234U depletion (234U/238U<1) in rocks appears to be linked to changes in redox conditions. The fractionation takes place as selective chemical release dominates over direct physical μ recoil. This preferential 234U release depends on the valence contrast between the U isotopes, 238U occurring in +4 form and ingrown 234U, due to oxidizing microenvironment, in +6 form. Observed U isotopic fractionation combined with other uranium series disequilibrium measurements provides a tool for locating redox fronts formed as a result low temperature rock-groundwater interaction.",
author = "Juhani Suksi and Kari Rasilainen",
note = "LIS: B1; 24th International Symposium on the Scientific Basis for Nuclear Waste Management ; Conference date: 28-08-2000 Through 31-08-2000",
year = "2002",
doi = "10.1557/PROC-663-961",
language = "English",
series = "Materials Research Society Symposia Proceedings",
publisher = "Materials Research Society",
pages = "961--969",
editor = "K.P. Hart and G.R. Lumpkin",
booktitle = "Scientific Basis for Nuclear Waste Management XXIV",
address = "United States",
}