The Geologically Recent Giant Impact Basins at Vesta’s South Pole
Dawn’s global mapping of Vesta reveals that its observed south polar depression is composed of two overlapping giant impact features. These large basins provide exceptional windows into impact processes at planetary scales. The youngest, Rheasilvia, is 500 kilometers wide and 19 kilometers deep and...
| Published in: | Science |
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| Main Authors: | , , , , , , , , , , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
American Association for the Advancement of Science (AAAS)
2012
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| Subjects: | |
| Online Access: | https://elib.dlr.de/80372/ |
| _version_ | 1835021061094113280 |
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| author | Schenk, P. O'Brien, D.P. Marchi, S. Gaskell, R.W. Preusker, Frank Roatsch, T. Jaumann, R. Buczkowski, D.L. McCord, T. B. McSween, H.Y. Williams, D.A. Yingst, R. A. Raymond, C.A. Russell, C.T. |
| author_facet | Schenk, P. O'Brien, D.P. Marchi, S. Gaskell, R.W. Preusker, Frank Roatsch, T. Jaumann, R. Buczkowski, D.L. McCord, T. B. McSween, H.Y. Williams, D.A. Yingst, R. A. Raymond, C.A. Russell, C.T. |
| author_sort | Schenk, P. |
| collection | Unknown |
| container_issue | 6082 |
| container_start_page | 694 |
| container_title | Science |
| container_volume | 336 |
| description | Dawn’s global mapping of Vesta reveals that its observed south polar depression is composed of two overlapping giant impact features. These large basins provide exceptional windows into impact processes at planetary scales. The youngest, Rheasilvia, is 500 kilometers wide and 19 kilometers deep and finds its nearest morphologic analog among large basins on low-gravity icy satellites. Extensive ejecta deposits occur, but impact melt volume is low, exposing an unusual spiral fracture pattern that is likely related to faulting during uplift and convergence of the basin floor. Rheasilvia obliterated half of another 400-kilometer-wide impact basin, Veneneia. Both basins are unexpectedly young, roughly 1 to 2 billion years, and their formation substantially reset Vestan geology and excavated sufficient volumes of older compositionally heterogeneous crustal material to have created the Vestoids and howardite-eucrite-diogenite meteorites. |
| format | Article in Journal/Newspaper |
| genre | South pole |
| genre_facet | South pole |
| geographic | South Pole |
| geographic_facet | South Pole |
| id | ftdlr:oai:elib.dlr.de:80372 |
| institution | Open Polar |
| language | unknown |
| op_collection_id | ftdlr |
| op_container_end_page | 697 |
| op_doi | https://doi.org/10.1126/science.1223272 |
| op_relation | Schenk, P. und O'Brien, D.P. und Marchi, S. und Gaskell, R.W. und Preusker, Frank und Roatsch, T. und Jaumann, R. und Buczkowski, D.L. und McCord, T. B. und McSween, H.Y. und Williams, D.A. und Yingst, R. A. und Raymond, C.A. und Russell, C.T. (2012) The Geologically Recent Giant Impact Basins at Vesta’s South Pole. Science, 336, Seiten 694-697. American Association for the Advancement of Science (AAAS). doi:10.1126/science.1223272 <https://doi.org/10.1126/science.1223272>. ISSN 0036-8075. |
| publishDate | 2012 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | openpolar |
| spelling | ftdlr:oai:elib.dlr.de:80372 2025-06-15T14:49:31+00:00 The Geologically Recent Giant Impact Basins at Vesta’s South Pole Schenk, P. O'Brien, D.P. Marchi, S. Gaskell, R.W. Preusker, Frank Roatsch, T. Jaumann, R. Buczkowski, D.L. McCord, T. B. McSween, H.Y. Williams, D.A. Yingst, R. A. Raymond, C.A. Russell, C.T. 2012-05 https://elib.dlr.de/80372/ unknown American Association for the Advancement of Science (AAAS) Schenk, P. und O'Brien, D.P. und Marchi, S. und Gaskell, R.W. und Preusker, Frank und Roatsch, T. und Jaumann, R. und Buczkowski, D.L. und McCord, T. B. und McSween, H.Y. und Williams, D.A. und Yingst, R. A. und Raymond, C.A. und Russell, C.T. (2012) The Geologically Recent Giant Impact Basins at Vesta’s South Pole. Science, 336, Seiten 694-697. American Association for the Advancement of Science (AAAS). doi:10.1126/science.1223272 <https://doi.org/10.1126/science.1223272>. ISSN 0036-8075. Planetengeologie Zeitschriftenbeitrag PeerReviewed 2012 ftdlr https://doi.org/10.1126/science.1223272 2025-06-04T04:58:10Z Dawn’s global mapping of Vesta reveals that its observed south polar depression is composed of two overlapping giant impact features. These large basins provide exceptional windows into impact processes at planetary scales. The youngest, Rheasilvia, is 500 kilometers wide and 19 kilometers deep and finds its nearest morphologic analog among large basins on low-gravity icy satellites. Extensive ejecta deposits occur, but impact melt volume is low, exposing an unusual spiral fracture pattern that is likely related to faulting during uplift and convergence of the basin floor. Rheasilvia obliterated half of another 400-kilometer-wide impact basin, Veneneia. Both basins are unexpectedly young, roughly 1 to 2 billion years, and their formation substantially reset Vestan geology and excavated sufficient volumes of older compositionally heterogeneous crustal material to have created the Vestoids and howardite-eucrite-diogenite meteorites. Article in Journal/Newspaper South pole Unknown South Pole Science 336 6082 694 697 |
| spellingShingle | Planetengeologie Schenk, P. O'Brien, D.P. Marchi, S. Gaskell, R.W. Preusker, Frank Roatsch, T. Jaumann, R. Buczkowski, D.L. McCord, T. B. McSween, H.Y. Williams, D.A. Yingst, R. A. Raymond, C.A. Russell, C.T. The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title | The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title_full | The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title_fullStr | The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title_full_unstemmed | The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title_short | The Geologically Recent Giant Impact Basins at Vesta’s South Pole |
| title_sort | geologically recent giant impact basins at vesta’s south pole |
| topic | Planetengeologie |
| topic_facet | Planetengeologie |
| url | https://elib.dlr.de/80372/ |