Spectral characteristics of lunar impact melts and inferred mineralogy

Spectral characteristics of lunar impact melts and inferred mineralogy

Two suites of lunar impact melt samples have been measured in NASA’s Reflectance Experiment Laboratory (RELAB) at Brown University. Suite 1 comprises seven Apollo 17 crystalline impact melt breccias and seven quenched glass equivalents. Suite 2 is made up of 15 additional impact melt samples (from Apollo 12, 15, 16, and 17) which exhibit a range of textures and compositions related to cooling c...

Density of primitive lunar melts

Thermo-chemical models of the dynamics of the internal differentiation of the Moon require accurate knowledge of the density of lunar minerals and melts at a range of high pressure, high temperature conditions. Here we present a comparative study of high-pressure, high-temperature density determinations of possible primitive lunar melts, as represented by volcanic glass beads sampled during the...

Mineralogy of Martian Atmospheric Dust Inferred from Spectral Deconvolu- Tion of Mgs Tes and Mariner

TION OF MGS TES AND MARINER 9 IRIS DATA. Harry Y. McSween Jr., Victoria E. Hamilton, and Bruce W. Hapke, Department of Geological Sciences, University of Tennessee, Knoxville, TN 37996, [email protected], Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, HI 96822, [email protected], Department of Geology and Planetary Sciences, University of Pittsburgh, Pittsb...

Refining lunar impact chronology through high spatial resolution Ar/Ar dating of impact melts

ht://ad D ow nladed fom Quantitative constraints on the ages of melt-forming impact events on the Moon are based primarily on isotope geochronology of returned samples. However, interpreting the results of such studies can often be difficult because the provenance region of any sample returned from the lunar surface may have experienced multiple impact events over the course of billions of year...

Impact of particle characteristics on inferred emissions