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Analysis of Origin of Multi-Ring Basins by Theory of Deep Water Waves |
| SHI Jian-Chun1,2;MA Yue-Hua1;CHEN Dao-Han1;BAO Gang1 |
| 1Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 2100082Graduate University of Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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SHI Jian-Chun, MA Yue-Hua, CHEN Dao-Han et al 2008 Chin. Phys. Lett. 25 787-789 |
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Abstract The tsunami model of the origin of multi-ring basins is analysed with the theory of deep water waves generated by an initial surface deformation, which is set as a parabolic crater. We obtain an approximate formula for calculating the ring radius. The formula applied to some multi-ring basins on the Moon, Mercury and Mars gives almost equidistant spacing of the rings
within the main ring (the IV ring); this agrees with the previous conclusion that the IV ring marks the end of the fluidized region. Besides this, the theory of deep water waves does not require similar crustal structure at each basin-impact site on all three planets which is required in the theory of shallow water waves.
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96.12.-a
96.15.Qr
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Received: 31 July 2007
Published: 30 January 2008
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| PACS: |
96.12.-a
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(Planetology of solid surface planets)
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96.15.Qr
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(Impact phenomena)
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