HiRISE | HiPOD Updates

HiPODs: 19—23 October 2020

	A Depression among Chaos in Juventae Chasma There are interesting formations in this depression that exhibit layering consisting of materials of differing tone or roughness. These resemble landforms in middle north latitudes interpreted to be the erosional expression of impact craters.
	Frost in Moni Moni Crater is a 5-kilometer crater with gullies on its walls and curvy ridges on the floor that are at the distal ends of the gullies’ debris aprons. In addition to learning about the formation of the ridges, another of our objectives is to monitor the frost within the gullies.
	Lava Contact in Athabasca Valles The northern toe of this mesa appears to contact and possibly overlie a rift in the lava crust, giving the impression that the mesa is geologically younger. However, the mesa surface is a jumble of tilted and disrupted blocks, while the lava is smooth and intact, which suggests that the mesa existed (and was deformed) before the lava.
	Still Life on the Northern Plains Nearby images show an assortment of expanded craters and hillocks that may be the final result of ice removal after sediment accumulation within the crater.
	A Mid-Latitude Pit Our image shows a sharp pit in mantled terrain in the mid-latitudes, which is a good candidate to expose ice. This footprint also includes some expanded craters, offering a chance to understand how expanded crater topography connects to ice geometry.