Figure 10. Portion of a Navcam mosaic taken on sol 3032 showing mixed boulders and sands located just to the north of the Sands of Forvie sand sheet. A MARDI image and Mastcam mosaic are also shown. The locations of the APXS Limeyrat_offset bedrock and the Fleurac observation is shown. Both the MARDI and Mastcam views show fragments of bedrock incorporated in relatively dark sands. Image credit: NASA/JPL-Caltech/MSSS.
The primary objective of paired measurements was to guard against APXS placement uncertainty (e.g., VanBommel et al., 2016) and to acquire a gradient in endmember (i.e., blocky material weathered from nearby bedrock and sand blown in from the main SoF sand sheet) coverage (Figures 10, 11).