Abstract
Lunar meteorites and other extraterrestrial materials represent unique geochemical archives that preserve key information on the formation, differentiation, and alteration histories of planetary bodies. In this talk, I would like to present new insights from Raman spectroscopy combined with high-resolution analytical methods, including SEM, EPMA, and EDX mapping, applied to lunar meteorites, Martian samples, HED meteorites, pallasites, and selected chondrites. Raman spectra provide rapid, non-destructive constraints on mineral chemistry, shock features, phase transitions, fluid–mineral interactions, and thermal overprints. By correlating Raman data with quantitative microprobe analyses on identical spots, we can resolve mineral zoning, microstructural complexity, and post-formational processes such as impact-induced metamorphism or melt infiltration. Comparative studies with terrestrial analogues further improve the interpretation of spectroscopic signatures in planetary materials. Together, these datasets contribute to the refinement of mineralogical Raman databases and support the development of robust spectroscopic tools for future robotic and human exploration missions.
Credit: M. Kaliwoda
Speaker
PD. Dr. habil. Melanie Kaliwoda
Senior Curator & Lecturer
Deputy Director, Head of Laboratory & Manager: Raman Spectroscopy Laboratory of the Bavarian State Collection of Mineralogy (SNSB)
Faculty of Geosciences
Ludwig-Maximilians-Universität München
Research Interests:
Light Elements | Mantle Xenoliths | Raman spectroscopy | Meteorites | Ophiolites | Metamorphites