Polar layered deposits all over the southpol
The layered appearance of the polar layered deposits is clearly recognizable throughout the whole image. This kind of deposits is usually composed of a mixture of CO2 ice and dust. The northern part of the image (right side) shows very faint orange tones, whereas the left side of the image is dominated by numerous dark fan-shaped deposits, oriented in the direction of prevailing winds. The lengths of the fans range from tens of meters to several hundreds of meters. These seasonal polar fans are deposits from jets that ejected dark dust from the subsurface of the seasonal polar CO2 ice cap. Their formation is associated with "spiders” (araneiforms) [see HRSC PR April 2024 – Angustus Labyrinthus] and their activity is governed by solar radiation.