Physics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990em%26p...49..247c&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 49, June 1990, p. 247-252. Research supported by the Chinese Academy of Sciences
Physics
Cratering, Planetary Craters, Structural Basins, Astronomical Models, Mathematical Models, Surface Waves
Scientific paper
The oscillating peak model of basin and crater formation proposed by Murray is analyzed mathematically. It is assumed that due to the interaction between the shock and the ground, the shock wave will be reflected causing the rebound. A coupling between gravitational collapse and rebound will result in the vertical oscillation of the center of the crater. Dramatic hydrodynamic behavior is ascribed to shock-fluidization of the whole area within the main outer rim, which refers to the IV ring in the case of a multiring basin. This process is based on the activities of Murray (1980). The problem presented here is considered by applying the theory of shallow water waves generated by a damped periodic impressive pressure. Axial symmetry is assumed throughout this process.
Chen Dao-Han
Yue Zeng-Yuan
Zhang Bin
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