The Effect of Antecedent Topography on Complex Crater Formation
Abstract Impact craters that form on every planetary body provide a record of planetary surface evolution. On heavily cratered surfaces, new craters that form often overlap antecedent craters, but it is unknown how the presence of antecedent craters alters impact crater formation. We use overlapping...
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| Format: | Article |
| Language: | English |
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Wiley
2024-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL108608 |
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| author | Don R. Hood Brennan W. Young Aviv L. Cohen‐Zada Peter B. James Ryan C. Ewing Jeffery S. Lee |
| author_facet | Don R. Hood Brennan W. Young Aviv L. Cohen‐Zada Peter B. James Ryan C. Ewing Jeffery S. Lee |
| author_sort | Don R. Hood |
| collection | DOAJ |
| description | Abstract Impact craters that form on every planetary body provide a record of planetary surface evolution. On heavily cratered surfaces, new craters that form often overlap antecedent craters, but it is unknown how the presence of antecedent craters alters impact crater formation. We use overlapping complex crater pairs on the lunar surface to constrain this process and find that crater rims are systematically lower where they intersect antecedent crater basins. The rim morphology of the new crater depends on the depth of the antecedent crater and the degree of overlap between the craters. Our observations suggest that new craters do not always obliterate underlying topography and that transient rim collapse is altered by antecedent topography. This study represents the first formalization of the influence of antecedent topography on rim morphology and provides process insight into a common impact scenario relevant to the geology of potential Artemis landing sites. |
| format | Article |
| id | doaj-art-adfa8a69c70d4e70b61aab3db1fc41c2 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-adfa8a69c70d4e70b61aab3db1fc41c22025-08-20T03:49:46ZengWileyGeophysical Research Letters0094-82761944-80072024-07-015114n/an/a10.1029/2024GL108608The Effect of Antecedent Topography on Complex Crater FormationDon R. Hood0Brennan W. Young1Aviv L. Cohen‐Zada2Peter B. James3Ryan C. Ewing4Jeffery S. Lee5Department of Geoscience Baylor University Waco TX USATexas A&M University Geology and Geophysics College Station TX USATexas A&M University Geology and Geophysics College Station TX USADepartment of Geoscience Baylor University Waco TX USATexas A&M University Geology and Geophysics College Station TX USADepartment of Geoscience Baylor University Waco TX USAAbstract Impact craters that form on every planetary body provide a record of planetary surface evolution. On heavily cratered surfaces, new craters that form often overlap antecedent craters, but it is unknown how the presence of antecedent craters alters impact crater formation. We use overlapping complex crater pairs on the lunar surface to constrain this process and find that crater rims are systematically lower where they intersect antecedent crater basins. The rim morphology of the new crater depends on the depth of the antecedent crater and the degree of overlap between the craters. Our observations suggest that new craters do not always obliterate underlying topography and that transient rim collapse is altered by antecedent topography. This study represents the first formalization of the influence of antecedent topography on rim morphology and provides process insight into a common impact scenario relevant to the geology of potential Artemis landing sites.https://doi.org/10.1029/2024GL108608crater formationlunar cratersartemiscrater morphology |
| spellingShingle | Don R. Hood Brennan W. Young Aviv L. Cohen‐Zada Peter B. James Ryan C. Ewing Jeffery S. Lee The Effect of Antecedent Topography on Complex Crater Formation Geophysical Research Letters crater formation lunar craters artemis crater morphology |
| title | The Effect of Antecedent Topography on Complex Crater Formation |
| title_full | The Effect of Antecedent Topography on Complex Crater Formation |
| title_fullStr | The Effect of Antecedent Topography on Complex Crater Formation |
| title_full_unstemmed | The Effect of Antecedent Topography on Complex Crater Formation |
| title_short | The Effect of Antecedent Topography on Complex Crater Formation |
| title_sort | effect of antecedent topography on complex crater formation |
| topic | crater formation lunar craters artemis crater morphology |
| url | https://doi.org/10.1029/2024GL108608 |
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