Investigating ancient sediment fans on Mars

火星上的古三角洲是评估火星宜居性和寻找火星上的古代生命的重要勘探目标。然而，根据轨道图像区分三角洲和冲积扇并非易事。该项目将调查识别不同类型沉淀扇的标准。该项目将调查2023年欧洲航天局月球车着陆点奥夏平原的沉淀扇。将使用完整的高分辨率成像科学实验(HiRISE)图像和推导出的风扇每像素25厘米的数字高程模型覆盖范围，并辅之以彩色和立体表面成像系统(CASSIS)和热发射成像系统(THEMIS)仪器的图像来绘制沉积物风扇的地图。地质图将用于重建沉积扇的演化并确定其成因。奥克夏沉淀扇将与火星上的其他沉淀扇进行比较。该博士项目还将重点放在盖尔陨石坑的Cursioity火星车任务上，在那里将利用火星车的数据探索潜在的沉淀扇，并与之前从轨道数据进行的解释进行比较。

Ancient deltas on Mars are important exploration targets in the assessment for habitability and search for ancient life on Mars. However, distinguishing between deltas and alluvial fans is not easy based on orbital imagery. This project will investigate criteria for identifying different types of sediment fan. The project will investigate the sediment fan in Oxia Planum, the landing site of the European Space Agency's rover in 2023. The sediment fan will be mapped using the complete High Resolution Imaging Science Experiment (HiRISE) images and derived DEM coverage of the fan at 25 cm per pixel, supplemented with images from the Colour and Stereo Surface Imaging System (CaSSiS) and the Thermal Emission Imaging System (THEMIS) instruments. The geological map will be used to reconstruct the evolution of the sediment fan and determine its origin. The Oxia sediment fan will be compared to other examples of sediment fans on Mars. This PhD project will also focus on the Cursioity rover mission at Gale crater, where potential sediment fans will be explored using data from the rover and compared to previous interpretations from orbital data.