Lunar radar sounder observations of subsurface layers under the nearside maria of the moon

Takayuki Ono, Atsushi Kumamoto, Hiromu Nakagawa, Yasushi Yamaguchi, Shoko Oshigami, Atsushi Yamaji, Takao Kobayashi, Yoshiya Kasahara, Hiroshi Oya

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)

Abstract

Observations of the subsurface geology of the Moon help advance our understanding of lunar origin and evolution. Radar sounding from the Kaguya spacecraft has revealed subsurface layers at an apparent depth of several hundred meters in nearside maria. Comparison with the surface geology in the Serenitatis basin implies that the prominent echoes are probably from buried regolith layers accumulated during the depositional hiatus of mare basalts. The stratification indicates a tectonic quiescence between 3.55 and 2.84 billion years ago; mare ridges were formed subsequently. The basalts that accumulated during this quiet period have a total thickness of only a few hundred meters. These observations suggest that mascon loading did not produce the tectonics in Serenitatis after 3.55 billion years ago. Global cooling probably dominated the tectonics after 2.84 billion years ago.

Original languageEnglish
Pages (from-to)909-912
Number of pages4
JournalScience
Volume323
Issue number5916
DOIs
Publication statusPublished - 2009 Feb 13

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Lunar radar sounder observations of subsurface layers under the nearside maria of the moon'. Together they form a unique fingerprint.

Cite this