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- Author or Editor: J. Delbrouck x
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Abstract
More than 200 specimens from different occurrences of the Rogaland igneous complex and surrounding granulite facies metamorphic rocks (S. W. Norway) have been analysed by a direct non-destructive proton induced gamma-ray emission (PIGE) technique. The fluorine contents vary from <25 ppm to 3500 ppm. There is a good correlation between the concentration of fluorine and that of phosphorus for igneous rocks, suggesting a control of apatite on the F content. In metamorphic rocks, amphibole and biotite besides apatite are the principal cencentrators of fluorine indicating that fluorine in the system is controlled by granulite facies metamorphism conditions.
Abstract
Fifteen geochemical reference samples /GRS/ issued from the Geological Survey of Japan have been analyzed by an automated proton induced 
-ray emission /PIGE/ method for fluorine. Results of determinations are reported. Values are given for many GRS that have not previously been analyzed for fluorine.
