Other
Scientific paper
Oct 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985avest..19..113l&link_type=abstract
(Astronomicheskii Vestnik, vol. 19, Apr.-June 1985, p. 113-119) Solar System Research (ISSN 0038-0946), vol. 19, no. 2, Oct. 198
Other
1
Apollo 15 Flight, Apollo 17 Flight, Lunar Crust, Lunar Far Side, Lunar Geology, Structural Basins, Zond 8 Space Probe, Topography
Scientific paper
The Southern Basin on the dark side of the moon has no features which indicate that lava flows defined its macrostructures as in macrorelief structures in other lunar regions. The 2000 km diam Basin is ringed by a range of tumble-down mountains. Zond-8 spacecraft photographs and Apollo laser altimeter data have permitted modelling the topography of the Basin. Gravimetric data have shown that a major negative gravity anomaly is located at the center region of the anomaly. The depth of the basin averages 5 km, similar to the Mare Orientale, although the Basin diameter is twice as large. The data indicate that the Southern Basin is the youngest feature of its kind on the moon, and has experienced milder isostatic and viscous transformations than similar features. Furthermore, The Southern Basin has a thicker crust and could have been initially formed by a meteorite the size of the one that formed Mare Orientale. The thicker crust would have allowed a shock wave to dig out a circle twice the diameter of the Mare Orientale.
Leikin G. A.
Sanovich A. N.
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