The Preliminary Processing and Geological Interpretation of Lunar Penetrating Radar Channel-1 Data from Chang’E-3

Monday, 15 December 2014
Yuefeng Yuan1, Peimin Zhu1, Na Zhao1, Shili Guo2, Long Xiao1 and Zhiyong Xiao1, (1)China University of Geosciences, Wuhan, China, (2)Henan Institute of Engineering, Zheng Zhou, China
This is the first time to obtain the subsurface profiles using the lunar penetrating radar (LPR) on the Moon surface. Two types of antennas, channel-1 and channel-2, with different resolutions were equipped on the LPR, which detected the lunar subsurface structure with low frequency and the thickness of regolith with high frequency, respectively. We focus on the study of the lunar subsurface structure using channel-1 data. Considering the propagation characteristics of radar wave, the processing of amplitude compensation and filtering are applied to improve the imaging quality, and the processed profile clearly represents deeper than 300 meters of layered information.

Based on the geological background around landing site, we present the preliminary geological interpretation for the lunar subsurface structure. More than 5 obvious reflecting events should be concerned along the track of the Yutu rover, which infer different lava sequences, including the Eratosthenian basalts, paleo-regolith formed between Eratosthenian and Imbrium, and multistage infilled lavas formed inter-layers among the Imbrium basalts.