The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters
The only martian rock samples on Earth are meteorites ejected from the surface of Mars by asteroid impacts. The locations and geological contexts of the launch sites are currently unknown. Determining the impact locations is essential to unravel the relations between the evolution of the martian int...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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NATURE PORTFOLIO
2021
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/DP170102972 http://hdl.handle.net/20.500.11937/90188 |
| _version_ | 1848765348802723840 |
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| author | Lagain, Anthony Benedix, Gretchen Servis, Konstantinos Baratoux, D. Doucet, Luc Rajšic, Andrea Devillepoix, Hadrien Bland, Phil Towner, Martin Sansom, Ellie Miljkovic, Katarina |
| author_facet | Lagain, Anthony Benedix, Gretchen Servis, Konstantinos Baratoux, D. Doucet, Luc Rajšic, Andrea Devillepoix, Hadrien Bland, Phil Towner, Martin Sansom, Ellie Miljkovic, Katarina |
| author_sort | Lagain, Anthony |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The only martian rock samples on Earth are meteorites ejected from the surface of Mars by asteroid impacts. The locations and geological contexts of the launch sites are currently unknown. Determining the impact locations is essential to unravel the relations between the evolution of the martian interior and its surface. Here we adapt a Crater Detection Algorithm that compile a database of 90 million impact craters, allowing to determine the potential launch position of these meteorites through the observation of secondary crater fields. We show that Tooting and 09-000015 craters, both located in the Tharsis volcanic province, are the most likely source of the depleted shergottites ejected 1.1 million year ago. This implies that a major thermal anomaly deeply rooted in the mantle under Tharsis was active over most of the geological history of the planet, and has sampled a depleted mantle, that has retained until recently geochemical signatures of Mars’ early history. |
| first_indexed | 2025-11-14T11:33:50Z |
| format | Journal Article |
| id | curtin-20.500.11937-90188 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:33:50Z |
| publishDate | 2021 |
| publisher | NATURE PORTFOLIO |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-901882023-02-23T07:01:15Z The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters Lagain, Anthony Benedix, Gretchen Servis, Konstantinos Baratoux, D. Doucet, Luc Rajšic, Andrea Devillepoix, Hadrien Bland, Phil Towner, Martin Sansom, Ellie Miljkovic, Katarina Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics MARTIAN MANTLE EJECTA MARS CHRONOLOGY THICKNESS LAUNCH CRUST EARTH The only martian rock samples on Earth are meteorites ejected from the surface of Mars by asteroid impacts. The locations and geological contexts of the launch sites are currently unknown. Determining the impact locations is essential to unravel the relations between the evolution of the martian interior and its surface. Here we adapt a Crater Detection Algorithm that compile a database of 90 million impact craters, allowing to determine the potential launch position of these meteorites through the observation of secondary crater fields. We show that Tooting and 09-000015 craters, both located in the Tharsis volcanic province, are the most likely source of the depleted shergottites ejected 1.1 million year ago. This implies that a major thermal anomaly deeply rooted in the mantle under Tharsis was active over most of the geological history of the planet, and has sampled a depleted mantle, that has retained until recently geochemical signatures of Mars’ early history. 2021 Journal Article http://hdl.handle.net/20.500.11937/90188 10.1038/s41467-021-26648-3 English http://purl.org/au-research/grants/arc/DP170102972 http://purl.org/au-research/grants/arc/DP210100336 http://creativecommons.org/licenses/by/4.0/ NATURE PORTFOLIO fulltext |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics MARTIAN MANTLE EJECTA MARS CHRONOLOGY THICKNESS LAUNCH CRUST EARTH Lagain, Anthony Benedix, Gretchen Servis, Konstantinos Baratoux, D. Doucet, Luc Rajšic, Andrea Devillepoix, Hadrien Bland, Phil Towner, Martin Sansom, Ellie Miljkovic, Katarina The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title | The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title_full | The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title_fullStr | The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title_full_unstemmed | The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title_short | The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| title_sort | tharsis mantle source of depleted shergottites revealed by 90 million impact craters |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics MARTIAN MANTLE EJECTA MARS CHRONOLOGY THICKNESS LAUNCH CRUST EARTH |
| url | http://purl.org/au-research/grants/arc/DP170102972 http://purl.org/au-research/grants/arc/DP170102972 http://hdl.handle.net/20.500.11937/90188 |