Abstract

Compositions of fluids trapped as inclusions during the growth of minerals, or during later healing of fluid-filled cracks, provide information on hydrothermal vein-type ore formation. Trace elements in fluid inclusions from hydrothermal quartz vein related to granite were determined by micro-PIXE. High concentration (wt.%) of Ca and Fe, and tens to thousands ppm Mn, Zn, Cu, Br, Rb, Sr, Pb and Ge, were observed in the inclusions, indicating higher metal contents in hydrothermal fluid released from granite.

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