Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars
Abstract HiRISE images and digital elevation models (DEMs) of outcrops in candidate Martian glaciovolcanoes provide more detailed evidence for glaciovolcanic processes than has previously been available for Mars. A group of ridges in the Pavonis Mons fan‐shaped glacial deposit features pervasive lay...
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| 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/10.1029/2024GL108269 |
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| author | Kathleen E. Scanlon W. Brent Garry James W. Head |
| author_facet | Kathleen E. Scanlon W. Brent Garry James W. Head |
| author_sort | Kathleen E. Scanlon |
| collection | DOAJ |
| description | Abstract HiRISE images and digital elevation models (DEMs) of outcrops in candidate Martian glaciovolcanoes provide more detailed evidence for glaciovolcanic processes than has previously been available for Mars. A group of ridges in the Pavonis Mons fan‐shaped glacial deposit features pervasive layering, evidence for local collapse and slumping, and steeper faces in the direction of paleoglacier flow inferred from other features in the deposit. After comparison with terrestrial analogs, we conclude that these ridges are excellent candidates for tephra‐dominated tindar, formed in phreatomagmatic subglacial eruptions. The englacial meltwater lakes required for a phreatomagmatic origin represent a rare example of voluminous surface water bodies in the Late Amazonian of Mars. |
| format | Article |
| id | doaj-art-0abaf8cdc99841d9952c6c779c8e5937 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-0abaf8cdc99841d9952c6c779c8e59372025-08-20T03:10:25ZengWileyGeophysical Research Letters0094-82761944-80072024-07-015114n/an/a10.1029/2024GL108269Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, MarsKathleen E. Scanlon0W. Brent Garry1James W. Head2Planetary Geology Geophysics, and Geochemistry Laboratory NASA Goddard Space Flight Center Greenbelt MD USAPlanetary Geology Geophysics, and Geochemistry Laboratory NASA Goddard Space Flight Center Greenbelt MD USADepartment of Earth, Environmental, and Planetary Sciences Brown University Providence RI USAAbstract HiRISE images and digital elevation models (DEMs) of outcrops in candidate Martian glaciovolcanoes provide more detailed evidence for glaciovolcanic processes than has previously been available for Mars. A group of ridges in the Pavonis Mons fan‐shaped glacial deposit features pervasive layering, evidence for local collapse and slumping, and steeper faces in the direction of paleoglacier flow inferred from other features in the deposit. After comparison with terrestrial analogs, we conclude that these ridges are excellent candidates for tephra‐dominated tindar, formed in phreatomagmatic subglacial eruptions. The englacial meltwater lakes required for a phreatomagmatic origin represent a rare example of voluminous surface water bodies in the Late Amazonian of Mars.https://doi.org/10.1029/2024GL108269MarsglaciovolcanismvolcanismLate Amazonianvolcano‐ice interactionsphreatomagmatism |
| spellingShingle | Kathleen E. Scanlon W. Brent Garry James W. Head Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars Geophysical Research Letters Mars glaciovolcanism volcanism Late Amazonian volcano‐ice interactions phreatomagmatism |
| title | Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars |
| title_full | Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars |
| title_fullStr | Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars |
| title_full_unstemmed | Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars |
| title_short | Evidence for Glaciovolcanic, Phreatomagmatic Tuff Dominated Ridges at Pavonis Mons, Mars |
| title_sort | evidence for glaciovolcanic phreatomagmatic tuff dominated ridges at pavonis mons mars |
| topic | Mars glaciovolcanism volcanism Late Amazonian volcano‐ice interactions phreatomagmatism |
| url | https://doi.org/10.1029/2024GL108269 |
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