An Analysis of the Exposure History of Apollo 17 Soils via Transmission Electron Microscopy TEM Images and EDX Data

<p>TEM and EDX data of individual grains found in five Apollo 17 scoop samples were collected to analyze their respective space weathering characteristics. The mineralogy, evidence of space weathering, and solar energetic particle (SEP) track derived surface exposure age was determined for each grain. These values were compared each soils FMR intensity, which correlated with surface exposure, to determine the relationship between agglutinate abundance, overall abundance of space weathered material, and SEP track derived exposure age distributions. This was done in order to understand the effects of regolith mixing and processing on the lunar surface.</p>