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Geochemical enrichment uranium

Szalay, A., 1958. The significance of humus in the geochemical enrichment of uranium. Geneva, Proc. Internat. Conf. Peaceful Uses Atom. Energy, 2nd, 2 182—186. [Pg.514]

Acid magmas from the interior of the earth react with basic rocks and start to sohdi-fy. Uranium is enriched in the remaining melts. When these finally solidify, the uranium content may be 100 g/tonne (100 ppm, 0.01%). Compared to the mean content in the earth s crust, 2.7 ppm, this is a considerable geochemical enrichment. In addition, uranium is concentrated into phosphate minerals and coal, especially brown coal. This is the background to the fact that coal-fired power stations emit more uranium than nuclear power stations ... [Pg.1195]

Most uranium deposits in sedimentary rocks are associated with geochemical provinces enriched in U and Th or with U-... [Pg.442]

See other pages where Geochemical enrichment uranium is mentioned: [Pg.17]    [Pg.1689]    [Pg.502]    [Pg.38]    [Pg.315]    [Pg.411]    [Pg.883]    [Pg.315]    [Pg.797]    [Pg.903]    [Pg.1005]    [Pg.1044]    [Pg.1564]    [Pg.883]    [Pg.94]    [Pg.201]    [Pg.304]    [Pg.343]    [Pg.154]    [Pg.7028]    [Pg.253]    [Pg.96]    [Pg.98]    [Pg.171]   
See also in sourсe #XX -- [ Pg.1195 ]



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