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Uranium and potassium in calc-alkaline volcanic rocks from Sardinia


, : Uranium and potassium in calc-alkaline volcanic rocks from Sardinia. Lithos: Pages 179-183. 1976.

The U content of major rock-forming minerals in a suite of calc-alkaline volcanic rocks from Sardinia is very low and their partition coefficient of U (DU = CS/CL) is smaller than 0.1. The values of DU of the mineral phases decrease from basalt to dacite and, in all rocks, the bulk of U and K is present in the groundmass. The apparent close association between K and U in basic and intermediate rocks probably reflects the fact that most of their rock-forming minerals are relatively ‘inert’ with respect to both of these elements.

US$19.90

DOI: 10.1016/0024-4937(76)90036-0


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