Fig. 9: Comparison between panchromatic, 500 nm shortpass-filtered, and 500 nm longpass-filtered CL images. | Nature Communications

Fig. 9: Comparison between panchromatic, 500 nm shortpass-filtered, and 500 nm longpass-filtered CL images.

From: New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions

Fig. 9: Comparison between panchromatic, 500 nm shortpass-filtered, and 500 nm longpass-filtered CL images.The alternative text for this image may have been generated using AI.

a, b Published CL spectra of quartz phenocrysts10,57, showing different proportions of Ti-related emission vs. non-bridging oxygen hole center (NBOHC)-related emission, depending on the analyzed quartz generation (c, d) Parts of crystal QtzX-3 mapped at two different magnifications in panchromatic mode. e, f The same areas mapped with a 500 nm shortpass filter placed in front of the detector, allowing only Ti-related intensities to pass. Note strong similarity between image pairs (c, e) and (d, f). g The area mapped with a 500 nm longpass filter placed in front of the detector shows no visible zonation.

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