Gravity field of the Orientale basin from the Gravity Recovery and Interior Laboratory Mission
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zuber_orientale_science16_accepted + SOM.pdf
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Author(s) • • • • • • • • •
Neumann, Gregory A.
Goossens, Sander
Andrews-Hanna, Jeffrey C.
Head, James W.
Kiefer, Walter S.
Asmar, Sami W.
Konopliv, Alexander S.
Lemoine, Frank G.
Matsuyama, Isamu
Melosh, H. Jay
Date Issued
October 2016
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Zuber, Maria T., David E. Smith, Gregory A. Neumann, Sander Goossens, Jeffrey C. Andrews-Hanna, James W. Head, Walter S. Kiefer, et al. "Gravity Field of the Orientale Basin from the Gravity Recovery and Interior Laboratory Mission." Science, Vol. 354, Issue 6311 (28 Oct 2016), pp. 438-441.
Version
Author's final manuscript
Abstract
The Orientale basin is the youngest and best-preserved major impact structure on the Moon. We used the Gravity Recovery and Interior Laboratory (GRAIL) spacecraft to investigate the gravitational field of Orientale at 3- to 5-kilometer (km) horizontal resolution. A volume of at least (3.4 ± 0.2) × 10[superscript 6] km[superscript 3] of crustal material was removed and redistributed during basin formation. There is no preserved evidence of the transient crater that would reveal the basin’s maximum volume, but its diameter may now be inferred to be between 320 and 460 km. The gravity field resolves distinctive structures of Orientale’s three rings and suggests the presence of faults associated with the outer two that penetrate to the mantle. The crustal structure of Orientale provides constraints on the formation of multiring basins.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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DOI of Published Version
https://doi.org/10.1126/science.aag0519