Figure 7
(A) A portion of the Mastcam image mosaic shows large cross beds of the basal member of the Stimson formation (SFb) that migrated up the slope of Mt. Sharp or southward. Yellow arrow shows the direction of cross bed migration. The top member of the Stimson formation (SFt) overlies the SFb with a sharp, truncational contact (dashed green line). (B) A portion of the mastcam image mosaic shows that the SFb begins with coarse-grained sandstone with trough cross beds with opposing dip angles. This is followed by a layer of sandstone with large trough cross beds that shows flow direction up the slope of Mt. Sharp or southward. Yellow arrow shows the direction of cross bed migration. (C) A portion of the mastcam image mosaic shows that the SFt is composed of bundles of cross beds that show flow direction down the slope of Mt. Sharp or northward. Purple arrow shows the direction of migration of cross beds. (D) The mastcam image mosaic shows that cross-bedded sandstones of the SFt transition into horizontally layered strata of the Dillinger member (DM). Yellow and purple lines trace layering. Unprocessed images used to generate mosaics of this figure are publically available at the Planetary Data System web site at https://pdsimaging.jpl.nasa.gov/. The credit for mastcam mosaic images of this figure goes to Malin Space Science Systems and NASA/JPL. Please see the Supplemental Document 1 for additional information on these images.
