Fig. 6: Folded rocks in a diapir-like structure.

a, MOLA/HRSC elevation data draped onto THEMIS daytime infrared data illustrate that three subbasins (Atlantis, Caralis and Simois) are separated only by a large antiformal structure. Black arrows indicate dip direction of layers. b, An HRSC colour image draped over topography shows steeply dipping layers in the north flank of the antiform. Perspective is looking SE from the north side of the structure. Arrows point to the traces of steeply dipping layers.