The Crust of the Moon as Seen by GRAIL

@article{Wieczorek2013TheCO,
  title={The Crust of the Moon as Seen by GRAIL},
  author={M. Wieczorek and G. Neumann and F. Nimmo and W. Kiefer and G. J. Taylor and H. Melosh and R. Phillips and S. Solomon and J. Andrews‐Hanna and S. Asmar and A. Konopliv and F. Lemoine and D. Smith and M. Watkins and James G. Williams and M. Zuber},
  journal={Science},
  year={2013},
  volume={339},
  pages={671 - 675}
}
The Holy GRAIL? The gravity field of a planet provides a view of its interior and thermal history by revealing areas of different density. GRAIL, a pair of satellites that act as a highly sensitive gravimeter, began mapping the Moon's gravity in early 2012. Three papers highlight some of the results from the primary mission. Zuber et al. (p. 668, published online 6 December) discuss the overall gravity field, which reveals several new tectonic and geologic features of the Moon. Impacts have… Expand

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References

SHOWING 1-10 OF 114 REFERENCES
Gravity Field of the Moon from the Gravity Recovery and Interior Laboratory (GRAIL) Mission
TLDR
The Moon's gravity field reveals that impacts have homogenized the density of the crust and fractured it extensively, and GRAIL elucidates the role of impact bombardment in homogenizing the distribution of shallow density anomalies on terrestrial planetary bodies. Expand
Ancient Igneous Intrusions and Early Expansion of the Moon Revealed by GRAIL Gravity Gradiometry
TLDR
The Moon's gravity map shows that the crust is cut by extensive magmatic dikes, perhaps implying a period of early expansion, and application of gravity gradiometry to observations by the GRAIL mission results in the identification of a population of linear gravity anomalies with lengths of hundreds of kilometers. Expand
A new seismic model of the Moon: implications for structure, thermal evolution and formation of the Moon
Abstract The seismic determinations of the crustal thickness and mantle velocities are key parameters for most geophysical and geochemical lunar studies. We determine a new seismic model of the MoonExpand
Density and porosity of the lunar crust from gravity and topography
[1] Newly obtained gravity and topography data of the Moon, combined with a lithospheric flexure model that considers both surface and subsurface loading, are used to place constraints on the densityExpand
A seismic model of the lunar mantle and constraints on temperature and mineralogy
Abstract We determine seismic profiles of the Moon’s interior using travel times obtained from a re-analysis of the Apollo data. Due to the limited number of quakes and stations, travel times errorsExpand
Crustal thickness of the Moon: New constraints from gravity inversions using polyhedral shape models
A new method is presented for estimating crustal thickness from gravity and topography data on the Moon. By calculating analytically the exterior gravitational field for a set of arbitrarily shapedExpand
The lunar crust: Global structure and signature of major basins
New lunar gravity and topography data from the Clementine Mission provide a global Bouguer anomaly map corrected for the gravitational attraction of mare fill in mascon basins. Most of the gravityExpand
A model for the hydrologic and climatic behavior of water on Mars
Past studies of the climatic behavior of water on Mars have universally assumed that the atmosphere is the sole pathway available for volatile exchange between the planet's crustal and polarExpand
Very preliminary reference Moon model
Abstract The deep structure of the Moon is a missing piece to understand the formation and evolution of the Earth–Moon system. Despite the great amount of information brought by the Apollo passiveExpand
The extent of impact induced fracturing from gravity modeling of the Granby and Tvaren simple craters
The Granby and Tvaren impact structures are two of the 5 recognized early Paleozoic impact structures in Scandinavia. They have a similar diameter of ca 2 km and contain a substantial post impactExpand
...
1
2
3
4
5
...