Paper Info
Title
Mineralogy of Chang'e-4 landing site: preliminary results of visible and near-infrared imaging spectrometer.
Abstract
The exploration of mafic anomaly in South Pole-Aitken (SPA, the largest confirmed) basin on the Moon provides important insights into lunar interior. The landing of Chang’e-4 (CE-4) and deployment of Yutu-2 rover on the discontinuous ejecta from Finsen crater enabled in-situ measurements of the unusual mineralogy in the central portion of SPA basin with visible and near-infrared imaging spectrometer (VNIS). Here we present detailed processing procedures based on the level 2B data of CE-4 VNIS and preliminary mineralogical results at the exploration area of Yutu-2 rover. A systematic processing pipeline is developed to derive credible reflectance spectra, based on which several spectral and mineral indices are calculated to constrain the mafic mineralogy. The mafic components in the soils and boulder around CE-4 landing site are concluded as clinopyroxene-bearing with intermediate composition and probably dominated by pigeonite although the possibility of mixing orthopyroxen (OPX) and calcic clinopyroxene (CPX) also exists. These mineralogical results are more consistent with a petrogenesis that the CE-4 regolith and rock fragment are derived from rapid-cooling magmatic systems and we interpret that the materials at the CE-4 landing site ejected from Finsen crater are probably recrystallized from impact melt settings.
Year
DOI
Venue
2020
10.1007/s11432-019-2768-1
Science China Information Sciences
Keywords
DocType
Volume
Chang’e-4, visible and near-infrared spectroscopy, mineralogy, impact melt, the Moon
Journal
63
Issue
ISSN
Citations 
4
1674-733X
1
PageRank 
References 
Authors
0.35
0
11
Name
Order
Citations
PageRank
Jian Chen110.35
Zongcheng Ling210.35
Le Qiao310.35
Zhiping He412.38
Rui Xu510.69
Lingzhi Sun610.35
Jiang Zhang710.35
Bo Li810.35
Xiaohui Fu910.69
Changqing Liu1010.35
Xiaobin Qi1111.36