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Feldspar, the most abundant mineral in the Earth\u2019s crust (&gt;\u200950%), generates metastable states with lifetimes of millions of years upon exposure to ionizing radiation. Although feldspar is widely used in dosimetry and geochronometry, the creation of metastable states and charge transfer across them is poorly understood. Understanding such phenomena requires next-generation methods based on high-resolution, site-selective probing of the metastable states. Recent studies using site-selective techniques such as photoluminescence (PL), and radioluminescence (RL) at 7\u00a0K have revealed that feldspar exhibits two near-infrared (NIR) emission bands peaking at 880\u00a0nm and 955\u00a0nm, which are believed to arise from the principal electron-trapping states. Here, we map for the first time the electron-trapping states in potassium-rich feldspar using spectrally-resolved cathodoluminescence microscopy at a spatial resolution of\u2009~\u20096 to 22\u00a0\u00b5m. Each pixel probed by a scanning electron microscope provides us a cathodoluminescence spectrum (SEM-CL) in the range 600\u20131000\u00a0nm, and elemental data from energy-dispersive x-ray (EDX) spectroscopy. We conclude that the two NIR emissions are spatially variable and, therefore, originate from different sites. This conclusion contradicts the existing model that the two emissions arise from two different excited states of a principal trap. Moreover, we are able to link the individual NIR emission peaks with the geochemical variations (K, Na and Fe concentration), and propose a model that explains the quenching of the NIR emission by Fe<jats:sup>4+<\/jats:sup>. Our study contributes to an improved understanding of charge storage in feldspathic minerals, with implications for developing sub-single grain (micrometer scale) measurement techniques in radiation dosimetry.<\/jats:p>","DOI":"10.1038\/s41598-020-72334-7","type":"journal-article","created":{"date-parts":[[2020,9,24]],"date-time":"2020-09-24T10:04:50Z","timestamp":1600941890000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Site-selective mapping of metastable states using electron-beam induced luminescence microscopy"],"prefix":"10.1038","volume":"10","author":[{"given":"R.","family":"Kumar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L. I. D. 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