Fig. 2: Morphological features of bright sands, dark sands, wind-erosion traces, windblown linear ridges and ventifacts in the Zhurong landing zone.

a,b, NaTeCam image (a) and MSCam image (b) (525 nm, 768 × 512 pixels) of the bright sand on dune 1. Scale bars, 10 cm (a) and 2 cm (b). c,d, NaTeCam image and MSCam image (525 nm, 768 × 512 pixels) of the sand ridge and bright sand on dune 3. Scale bars, 10 cm (c) and 2 cm (d). e,f, MarSCoDe micro-images of the bright sand surfaces on dune 3 before (e) and after (f) being hit by LIBS laser shots. The position of laser shots is shown in in the crosshair of c. Scale bars, 5 mm. g, A partial 3D scene for dune 2 derived from NaTeCam stereo images. Scale bar, 10 cm. h, MSCam image (525 nm, 2,048 × 2,048 pixels) of parallel cracks on the surface of bright barchans (dune 2). Scale bar, 6 cm. i, MSCam image (525 nm, 768 × 512 pixels) of the dark sands on dune 2. Scale bar, 2 cm. j,k, NaTeCam image (j) and MSCam image (k) (525 nm, 768 × 512 pixels) of polygonal cracks on the surface of bright barchans (dune 5). Scale bars, 20 cm (j) and 5 cm (k). l, MSCam image (525 nm, 512 × 768 pixels) of the dark sands on dune 5. Scale bar, 2 cm. m,n, MarSCoDe micro-images of the dark sands surfaces on dune 5 before (m) and after (n) being hit using LIBS laser shots. The position of laser shots on Dune 5 is shown in the crosshair of j. Scale bars, 5 mm. o, The wind-erosion trace and windblown linear ridges indicated two different wind directions from the north-east and north-west, respectively, in NaTeCam images. The images were taken on Sol 41. p–r, Ventifacts with grooves and etchings on the windward sides or along wind direction in MSCam colour images (768 × 512 pixels), which were taken on Sol 100 (p), Sol 69 (q) and Sol 79 (r). Scale bars, 5 cm. Credit: CNSA/GRAS.