TY - JOUR
T1 - Intermittent volcanic activity detected in the Von Kármán crater on the farside of the Moon
AU - Yuan, Yuefeng
AU - Zhu, Peimin
AU - Xiao, Long
AU - Huang, Jun
AU - Garnero, Edward J.
AU - Deng, Jian
AU - Wang, Fenghua
AU - Qian, Yuqi
AU - Zhao, Na
AU - Wang, Wengang
AU - Li, Weiwei
N1 - Funding Information:
The authors would like to thank the editor W. McKinnon, reviewer B. Thomson and an anonymous reviewer for constructive reviews and comments that helped improve the manuscript. This work was supported by National Natural Science Foundation of China [ 41904119 , 41830214 ], the Fundamental Research Funds for the Central Universities , China University of Geosciences (Wuhan) [ CUG2106109 ], China Postdoctoral Science Foundation [ 2018M642950 ], the Pre-research Project on Civil Aerospace Technologies [ D020101 ] of CNSA , Zhejiang Provincial Natural Science Foundation of China [ LQ18A030001 ], and Ningbo Natural Science Foundation [ 2019A610090 ]. Data presented in this paper are hosted at http://moon.bao.ac.cn/index_en.jsp .
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9/1
Y1 - 2021/9/1
N2 - Sensitive to permittivity differences, lunar penetrating radar (LPR) can detect stratification due to material property differences in a medium. We examined the subsurface structures of Von Kármán crater within the South Pole-Aitken (SPA) basin on the farside of the Moon using LPR data obtained by the Chang'E-4 mission. Various distinct strata with depth are clearly recognized, consistent with multiple periods of intermittent lava flows, paleo-regolith, and crater ejecta. Numerous concave and arc shape structures observed at various depths are consistent with buried craters and broken rocks, indicating that the ancient lunar surfaces which are currently buried by up to 30 m deep in Von Kármán, as well as the current surface, suffered numerous impacting events. An imaged subsurface thick paleo-regolith infers a quiescent period with low volcanic activity within the Von Kármán crater. Following the quiescent period (shallower in the profile), a relatively young period of volcanism in the Von Kármán crater is inferred. The mapped stratigraphy and chronology of these events present a self-consistent history of the Von Kármán crater within the SPA, which suggests connections to events on the lunar nearside.
AB - Sensitive to permittivity differences, lunar penetrating radar (LPR) can detect stratification due to material property differences in a medium. We examined the subsurface structures of Von Kármán crater within the South Pole-Aitken (SPA) basin on the farside of the Moon using LPR data obtained by the Chang'E-4 mission. Various distinct strata with depth are clearly recognized, consistent with multiple periods of intermittent lava flows, paleo-regolith, and crater ejecta. Numerous concave and arc shape structures observed at various depths are consistent with buried craters and broken rocks, indicating that the ancient lunar surfaces which are currently buried by up to 30 m deep in Von Kármán, as well as the current surface, suffered numerous impacting events. An imaged subsurface thick paleo-regolith infers a quiescent period with low volcanic activity within the Von Kármán crater. Following the quiescent period (shallower in the profile), a relatively young period of volcanism in the Von Kármán crater is inferred. The mapped stratigraphy and chronology of these events present a self-consistent history of the Von Kármán crater within the SPA, which suggests connections to events on the lunar nearside.
KW - Chang'e-4
KW - Von Kármán crater
KW - lunar penetrating radar
KW - the lunar farside
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U2 - 10.1016/j.epsl.2021.117062
DO - 10.1016/j.epsl.2021.117062
M3 - Article
AN - SCOPUS:85112123970
VL - 569
JO - Earth and Planetary Sciences Letters
JF - Earth and Planetary Sciences Letters
SN - 0012-821X
M1 - 117062
ER -