GEOCHEMICAL CHARACTERISATION AND CR ISOTOPE COMPOSITION OF LIBYAN DESERT GLASSES AND ORDINARY CHONDRITES: PRELIMINARY DATA

Chromium stable isotopes can be used in a wide range of applications in cosmochemistry, particularly those related to early solar system processes. Meteorites, together with return mission samples, represent unique materials to directly investigate Solar System bodies. Cr isotope systematic represents a powerful geochemical tool to investigate meteorite characteristics and to eventually discriminate between the terrestrial vs. extra-terrestrial contribution on the composition of the fall materials.