Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source
Mount Melbourne (74°21′ S, 164°43′ E) is a quiescent volcano located in northern Victoria Land, Antarctica. Tilt signals have been recorded on Mount Melbourne since early 1989 by a permanent shallow borehole tiltmeter network comprising five stations. An overall picture of tilt, air and permafrost t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Norwegian Polar Institute
2016-06-01
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| Series: | Polar Research |
| Subjects: | |
| Online Access: | http://www.polarresearch.net/index.php/polar/article/view/28269/46926 |
| _version_ | 1818641182842945536 |
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| author | Salvatore Gambino Marco Aloisi Giuseppe Falzone Angelo Ferro |
| author_facet | Salvatore Gambino Marco Aloisi Giuseppe Falzone Angelo Ferro |
| author_sort | Salvatore Gambino |
| collection | DOAJ |
| description | Mount Melbourne (74°21′ S, 164°43′ E) is a quiescent volcano located in northern Victoria Land, Antarctica. Tilt signals have been recorded on Mount Melbourne since early 1989 by a permanent shallow borehole tiltmeter network comprising five stations. An overall picture of tilt, air and permafrost temperatures over 15 years of continuous recording data is reported. We focused our observations on long-term tilt trends that at the end of 1997 showed coherent changes at the three highest altitude stations, suggesting the presence of a ground deformation source whose effects are restricted to the summit area of Mount Melbourne. We inverted these data using a finite spherical body source, thereby obtaining a shallow deflation volume source located under the summit area. The ground deformation observed corroborates the hypothesis that the volcanic edifice of Mount Melbourne is active and should be monitored multidisciplinarily. |
| first_indexed | 2024-12-16T23:23:06Z |
| format | Article |
| id | doaj.art-5b23335de6354d2f9ae0bad7d84d21b6 |
| institution | Directory Open Access Journal |
| issn | 1751-8369 |
| language | English |
| last_indexed | 2024-12-16T23:23:06Z |
| publishDate | 2016-06-01 |
| publisher | Norwegian Polar Institute |
| record_format | Article |
| series | Polar Research |
| spelling | doaj.art-5b23335de6354d2f9ae0bad7d84d21b62022-12-21T22:12:07ZengNorwegian Polar InstitutePolar Research1751-83692016-06-013501910.3402/polar.v35.2826928269Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic sourceSalvatore Gambino0Marco Aloisi1Giuseppe Falzone2Angelo Ferro3Catania Department, National Institute of Geophysics and Volcanology, Piazza Roma 2, IT-95123 Catania, ItalyCatania Department, National Institute of Geophysics and Volcanology, Piazza Roma 2, IT-95123 Catania, ItalyCatania Department, National Institute of Geophysics and Volcanology, Piazza Roma 2, IT-95123 Catania, ItalyCatania Department, National Institute of Geophysics and Volcanology, Piazza Roma 2, IT-95123 Catania, ItalyMount Melbourne (74°21′ S, 164°43′ E) is a quiescent volcano located in northern Victoria Land, Antarctica. Tilt signals have been recorded on Mount Melbourne since early 1989 by a permanent shallow borehole tiltmeter network comprising five stations. An overall picture of tilt, air and permafrost temperatures over 15 years of continuous recording data is reported. We focused our observations on long-term tilt trends that at the end of 1997 showed coherent changes at the three highest altitude stations, suggesting the presence of a ground deformation source whose effects are restricted to the summit area of Mount Melbourne. We inverted these data using a finite spherical body source, thereby obtaining a shallow deflation volume source located under the summit area. The ground deformation observed corroborates the hypothesis that the volcanic edifice of Mount Melbourne is active and should be monitored multidisciplinarily.http://www.polarresearch.net/index.php/polar/article/view/28269/46926Tilt monitoringvolcanic dynamicsphysics volcanologyground deformationVictoria Land |
| spellingShingle | Salvatore Gambino Marco Aloisi Giuseppe Falzone Angelo Ferro Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source Polar Research Tilt monitoring volcanic dynamics physics volcanology ground deformation Victoria Land |
| title | Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source |
| title_full | Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source |
| title_fullStr | Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source |
| title_full_unstemmed | Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source |
| title_short | Tilt signals at Mount Melbourne, Antarctica: evidence of a shallow volcanic source |
| title_sort | tilt signals at mount melbourne antarctica evidence of a shallow volcanic source |
| topic | Tilt monitoring volcanic dynamics physics volcanology ground deformation Victoria Land |
| url | http://www.polarresearch.net/index.php/polar/article/view/28269/46926 |
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