In-situ characterization of dust nodules in ice cores from the Tibetan Plateau
Published in Microscopy and Microanalysis, 2025
We used a liquid nitrogen-cooled sample stage equipped to a Thermofisher Scientific Quattro scanning electron microscope to work with ice samples cut from 309 m depth in the Guliya Plateau 2 (GP2) ice core from the Tibetan Plateau. We conducted a controlled sublimation experiment by modulating the temperature of the cold stage in order to reveal dust nodules within the ice matrix, and showed that with this method we can also collect high resolution images and perform advanced microanalysis techniques such as electron backscatter diffraction (EBSD) and energy dispersive x-ray spectrometry (EDS).
Recommended citation: Veghte, D., Weber, A. M., Beaudon, E., and Thompson, L. G. (2025). In-situ characterization of dust nodules in ice cores from the Tibetan Plateau. Microscopy and Microanalysis. 31(7). DOI:10.1093/mam/ozaf048.966