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Compositional anomaly in the South Pole-Aitken Basin

Compositional anomaly in the South Pole-Aitken Basin
Compositional anomaly in the South Pole-Aitken Basin The South Pole-Aitken Basin Compositional Anomaly (SPACA). Left: LRO LOLA topography centered on SPA. Right: Compositional variations shown using M3-derived 1 micron absorption band center (EBC) variations, overlaid on WAC mosaic. For both images, the central depression of SPA is outlined by the dashed oval circle. The SPA compositional anomaly is outline by the solid line and measures ~700 km across. NASA / GSFC / ASU / <a href="http://www.hou.usra.edu/meetings/lpsc2016/pdf/1735.pdf">Moriarty (2016)</a>