Learn More
aBSTracT Remote sensing observations have identified aluminate spinel, in the absence of measureable olivine and pyroxene, as a globally distributed component of the lunar crust. Earlier remote sensing observations and returned samples did not indicate the presence of this component, leaving its geologic significance unclear. Here, we report visible to(More)
aBstRaCt Visible to near-infrared (V-NIR) remote sensing observations have identified spinel in various locations and lithologies on the Moon. Experimental studies have quantified the FeO content of these spinels (Jackson et al. 2014), however the chromite component is not well constrained. Here we present compositional and spectral analyses of spinel(More)
OBJECTIVE To summarize the results of cost-utility analyses of pediatric cochlear implantation (PCI) in the United Kingdom. METHOD Analyses were based on measured costs of health care and measured educational placements, but on estimates of the gain utility which results from PCI and estimates of the costs of educational placements. RESULTS The(More)
A number of studies have shown that a joint approach integrating petrography, Mössbauer, infrared spectroscopy and other related methods to the investigation of a single sample provides insight into planetary materials beyond what can be inferred from any of the individual techniques alone [e.g. 1-4]. We present the initial results of optical, thermal and(More)
abstract Olivine exhibits highly diagnostic absorption features across visible to near-infrared (VNIR) wavelengths due to electronic transitions of Fe 2+ in its crystal structure. The properties of these absorptions vary with composition, enabling compositional analysis of olivine through VNIR spectroscopy, both in the laboratory and through remote sensing.(More)
  • 1