Uranium in river water

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doi: 10.1016/0016-7037(93)90131-F
Authors:Palmer, M. R.; Edmond, J. M.
Author Affiliations:Primary:
University of Bristol, Department of Geology, Bristol, United Kingdom
Massachusetts Institute of Technology, United States
Volume Title:Geochimica et Cosmochimica Acta
Source:Geochimica et Cosmochimica Acta, 57(20), p.4947-4955. Publisher: Pergamon, Oxford, International. ISSN: 0016-7037
Publication Date:1993
Note:In English. 26 refs.; illus. incl. 5 tables
Summary:Analyses of dissolved U are presented for samples from > 250 rivers from the Orinoco, Amazon and Ganges basins. Global river dissolved U concentrations are collated from published data. The results show that U concentrations in such large drainage basins are largely determined by dissolution of limestones, and by the weathering of uraniferous black shales which may lead to relatively high U concentrations in some rivers. Evaporative condensation, as in the Ganges, may also enhance U concentrations. U in rivers draining shield terrains are lower than those from sedimentary provenances. U in rivers confined mainly to floodplains, as in the Amazon, is as low as in rivers draining shield terrains. Excluding the high relative U levels in the Ganges-Brahmaputra and Yellow rivers, the global average of dissolved U in rivers is 0.78 nmol/kg. [R.K.H.]
Subjects:Actinides; Geochemistry; Hydrochemistry; Metals; Runoff; Solutes; Solution; Surface water; Uranium; Water
Abstract Numbers:94M/3389
Record ID:1994015623
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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