Sol 1648, March 26, 2017. The Mastcam’s 34mm lens captured a color view looking southwest from its position at Ogunquit Beach. Most of the rocks scattered across the surface show a finely layered, wafer-like structure. A few also show bright mineral veins cutting across the rock’s layers, suggesting at least two geological episodes.
One episode was the original deposition, either in the open air or on a lake bottom, then came a mineralizing process that left bright veins (of sulfate minerals?) in cracks within the rocks. Finally, some process broke up the rocks and tumbled them across the landscape. Click the image (5 MB) for a larger version. (A Navcam view from nearby on Sol 1646 is here; many rocks appear in both images, but from different perspectives.)
Sol 1648 raw images (from all cameras), and Curiosity’s latest location.