Evolution of the Rembrandt Impact Basin on Mercury
MESSENGER's second Mercury flyby revealed a approximately 715-kilometer-diameter impact basin, the second-largest well-preserved basin-scale impact structure known on the planet. The Rembrandt basin is comparable in age to the Caloris basin, is partially flooded by volcanic plains, and displays...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 2009-05, Vol.324 (5927), p.618-621 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | MESSENGER's second Mercury flyby revealed a approximately 715-kilometer-diameter impact basin, the second-largest well-preserved basin-scale impact structure known on the planet. The Rembrandt basin is comparable in age to the Caloris basin, is partially flooded by volcanic plains, and displays a unique wheel-and-spoke-like pattern of basin-radial and basin-concentric wrinkle ridges and graben. Stratigraphic relations indicate a multistaged infilling and deformational history involving successive or overlapping phases of contractional and extensional deformation. The youngest deformation of the basin involved the formation of a approximately 1000-kilometer-long lobate scarp, a product of the global cooling and contraction of Mercury. |
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ISSN: | 0036-8075 1095-9203 |
DOI: | 10.1126/science.1172109 |