CCD imaging of the infra-red stimulated luminescence of feldspars

摘要

A simple technique for imaging the dim infra-red stimulated luminescence of feldspars is presented. images of intrinsically bright feldspars and K-feldspar sediment separates were obtained for the violet (3.1 eV) and yellow-green (2.2 eV) luminescence produced by excitation at 1.43 eV. Comparison of the luminescence images with SEM element maps for a microcline perthite, show a correlation between the relative intensities of the violet and yellow-green emission bands and the Na and K contents, respectively. (C) 2003 Elsevier Ltd. All rights reserved. [References: 13]