The deep structure of lunar basins: Clues to the understanding of basin formation and modification

Details The deep structure of lunar basins: Clues to the understanding of basin formation and modification The deep structure of lunar basins: Clues to the understanding of basin formation and modification

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..491b&link_type=abstract

In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 491-493 (SEE N85-23474 13-91)

Mathematics

Logic

Lunar Crust, Lunar Mantle, Lunar Surface, Photogeology, Structural Basins, Topography, Lunar Geology, Lunar Seismographs, Moon, Thermodynamic Properties

Scientific paper

Basin excavation has played a major role in shaping the surface and subsurface of the Moon. Though photogeologic observations provide estimates for the present volumes of lunar impact basins and their ejecta deposits, there is not sufficient information to describe completely either the geometry of the basins at the time of impact or their modification with time. Determination of the structure of the crust and upper mantle beneath large basins can provide important insight into the thermal and mechanical processes associated with basin formation and modification as well as the differences in these processes as functions of basin age and size. Using observed gravity and topography together with the seismically determined crustal thickness of the central nearside, a model for the structure of the crust and upper mantle of the nearside of the Moon is presented. With this model the deep structure of the largest lunar basins are compared. The implications for the processes of basin formation and modification at different stages in lunar history are explored.

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