MICRO-PIXE ANALYSIS IN MINERALOGY AND GEOCHEMISTRY

Micro-PIXE is an established quantitative technique whose detection li mits can be as low as a few ppm in point analysis mode, and which, in scanning mode, can provide one-and two-dimensional distributions of mi nor and even trace elements for zoned minerals. The Guelph instrument and counterparts at Heidelberg, Amsterdam, Oxford, Sydney and Los Alam os are being used increasingly by mineralogists and geochemists. The f ull potential of the technique is far from realized.