Other
Scientific paper
Jan 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975moon...12...19o&link_type=abstract
The Moon, vol. 12, Jan. 1975, p. 19-54.
Other
29
Apollo 16 Flight, Lunar Craters, Lunar Evolution, Lunar Maria, Lunar Surface, Cratering, Impact Prediction, Lunar Geology, Lunar Photography, Lunar Topography, Meteorite Craters, Surface Geometry, Terrain Analysis
Scientific paper
Various theories have been published that consider the material of the Cayley Formation (a lunar smooth plain) to be ejecta of distant multiringed basins. Results presented in this paper indicate that the material cannot be solely basin ejecta. If smooth-plains are a result of formation of these basins or other distant large craters, then the plains materials are mainly ejecta of secondary craters of these basins or craters with only minor contributions of primary-crater or basin ejecta. Primary-crater ejecta can be a significant fraction of a deposit emplaced by an impact crater only if the primary crater is nearby. Other proposed mechanisms for emplacement of smooth-plains formations are discussed, and implications regarding the origin of material in the continuous aprons surrounding large lunar craters is considered. It is emphasized that the importance of secondary-impact cratering in the highlands has in general been underestimated and that this process must have been important in the evolution of the lunar surface.
Gault Donald E.
Hoerz Friedrich
Morrison R. H.
Oberbeck Verne R.
Quaide William L.
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