Formation of the Orientale lunar multiring basin
Multiring basins, large impact craters characterized by multiple concentric topographic rings, dominate the stratigraphy, tectonics, and crustal structure of the Moon. Using a hydrocode, we simulated the formation of the Orientale multiring basin, producing a subsurface structure consistent with hig...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
The American Association for the Advancement of Science
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/51083 |
| _version_ | 1848758610190925824 |
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| author | Johnson, B. Blair, D. Collins, G. Melosh, H. Freed, A. Taylor, G. Head, J. Wieczorek, M. Andrews-Hanna, J. Nimmo, F. Keane, J. Miljkovic, Katarina Soderblom, J. Zuber, M. |
| author_facet | Johnson, B. Blair, D. Collins, G. Melosh, H. Freed, A. Taylor, G. Head, J. Wieczorek, M. Andrews-Hanna, J. Nimmo, F. Keane, J. Miljkovic, Katarina Soderblom, J. Zuber, M. |
| author_sort | Johnson, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Multiring basins, large impact craters characterized by multiple concentric topographic rings, dominate the stratigraphy, tectonics, and crustal structure of the Moon. Using a hydrocode, we simulated the formation of the Orientale multiring basin, producing a subsurface structure consistent with high-resolution gravity data from the Gravity Recovery and Interior Laboratory (GRAIL) spacecraft. The simulated impact produced a transient crater, ~390 kilometers in diameter, that was not maintained because of subsequent gravitational collapse. Our simulations indicate that the flow of warm weak material at depth was crucial to the formation of the basin's outer rings, which are large normal faults that formed at different times during the collapse stage. The key parameters controlling ring location and spacing are impactor diameter and lunar thermal gradients. |
| first_indexed | 2025-11-14T09:46:43Z |
| format | Journal Article |
| id | curtin-20.500.11937-51083 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:46:43Z |
| publishDate | 2016 |
| publisher | The American Association for the Advancement of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-510832018-03-29T09:09:26Z Formation of the Orientale lunar multiring basin Johnson, B. Blair, D. Collins, G. Melosh, H. Freed, A. Taylor, G. Head, J. Wieczorek, M. Andrews-Hanna, J. Nimmo, F. Keane, J. Miljkovic, Katarina Soderblom, J. Zuber, M. Multiring basins, large impact craters characterized by multiple concentric topographic rings, dominate the stratigraphy, tectonics, and crustal structure of the Moon. Using a hydrocode, we simulated the formation of the Orientale multiring basin, producing a subsurface structure consistent with high-resolution gravity data from the Gravity Recovery and Interior Laboratory (GRAIL) spacecraft. The simulated impact produced a transient crater, ~390 kilometers in diameter, that was not maintained because of subsequent gravitational collapse. Our simulations indicate that the flow of warm weak material at depth was crucial to the formation of the basin's outer rings, which are large normal faults that formed at different times during the collapse stage. The key parameters controlling ring location and spacing are impactor diameter and lunar thermal gradients. 2016 Journal Article http://hdl.handle.net/20.500.11937/51083 10.1126/science.aag0518 The American Association for the Advancement of Science restricted |
| spellingShingle | Johnson, B. Blair, D. Collins, G. Melosh, H. Freed, A. Taylor, G. Head, J. Wieczorek, M. Andrews-Hanna, J. Nimmo, F. Keane, J. Miljkovic, Katarina Soderblom, J. Zuber, M. Formation of the Orientale lunar multiring basin |
| title | Formation of the Orientale lunar multiring basin |
| title_full | Formation of the Orientale lunar multiring basin |
| title_fullStr | Formation of the Orientale lunar multiring basin |
| title_full_unstemmed | Formation of the Orientale lunar multiring basin |
| title_short | Formation of the Orientale lunar multiring basin |
| title_sort | formation of the orientale lunar multiring basin |
| url | http://hdl.handle.net/20.500.11937/51083 |