Details

Autor(en) / Beteiligte

• Giannakis, Iraklis
• Martin-Torres, Javier
• Su, Yan
• Feng, Jianqing
• Zhou, Feng
• Zorzano, Maria-Paz
• Warren, Craig
• Giannopoulos, Antonios

Titel

Evidence of shallow basaltic lava layers in Von Kármán crater from Yutu-2 Lunar Penetrating Radar

Ist Teil von

• Icarus (New York, N.Y. 1962), 2024-01, Vol.408, p.115837, Article 115837

Ort / Verlag

Elsevier Inc

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Yutu-2 – the rover from the Chang’E-4 mission – is the longest operational Lunar rover, and the first rover to land on the far side of the Moon. It is the second planetary rover to be equipped with ground-penetrating radar (GPR), one of the few in-situ geophysical techniques used in planetary exploration. Since landing in 2019, Yutu-2 has travelled more than 1 kilometre in the Von Kármán (VK) crater, and has been able to investigate the dielectric properties of the shallow Lunar ejecta using its on-board high frequency GPR channels. In this paper, we use advanced signal processing and frequency attributes to infer a detailed dielectric structure of the first ≈30 metres of the subsurface, providing valuable information on the ilmenite content of the landing site. Both the dielectric properties and the ilmenite content suggest a shallow sequence of Imbrian basaltic layers overlaying a low-ilmenite ejecta blanket. •Detailed imaging of layered structures at the landing site of Chang’E-4 mission.•Inferring the presence of a shallow sequence of basaltic lava layers.•Using frequency attributes to estimate the ilmenite content of subsurface layers.