The Structure of the Upper Crust beneath the Kambalny Volcano (South Kamchatka) Revealed from Ambient Noise Tomography
The result of ambient noise tomography for the Kambalny Volcano (South Kamchatka), where the first time in the entire history of observations a violent phreatic eruption was observed in March–April 2017, is presented. The results obtained clarify the structure of the upper part of the edifice of the...
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| Veröffentlicht in: | Doklady earth sciences 2021-11, Vol.501 (1), p.933-937 |
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| container_title | Doklady earth sciences |
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| creator | Belovezhets, N. N. Berezhnev, Y. M. Koulakov, I. Yu Shapiro, N. M. Abkadyrov, I. F. Rychagov, S. N. Gordeev, E. I. |
| description | The result of ambient noise tomography for the Kambalny Volcano (South Kamchatka), where the first time in the entire history of observations a violent phreatic eruption was observed in March–April 2017, is presented. The results obtained clarify the structure of the upper part of the edifice of the Kambalny Volcano and are consistent with independent data on body waves, as well as with geological information. According to seismotomographic data of the surface waves, low-velocity anomalies are distinguished in the model of the structure of the volcanic edifice. They are asymmetric relative to the volcano cone and are allocated to loose pyroclastic deposits of past eruptions and to deep sources of hydrothermal activity. Perhaps the migration of fluids in these hydrothermal vents to the north and west of the volcano and their interaction with the magma chamber in the upper crust caused the explosive eruption. |
| doi_str_mv | 10.1134/S1028334X21110040 |
| format | Article |
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N. ; Berezhnev, Y. M. ; Koulakov, I. Yu ; Shapiro, N. M. ; Abkadyrov, I. F. ; Rychagov, S. N. ; Gordeev, E. I.</creator><creatorcontrib>Belovezhets, N. N. ; Berezhnev, Y. M. ; Koulakov, I. Yu ; Shapiro, N. M. ; Abkadyrov, I. F. ; Rychagov, S. N. ; Gordeev, E. I.</creatorcontrib><description>The result of ambient noise tomography for the Kambalny Volcano (South Kamchatka), where the first time in the entire history of observations a violent phreatic eruption was observed in March–April 2017, is presented. The results obtained clarify the structure of the upper part of the edifice of the Kambalny Volcano and are consistent with independent data on body waves, as well as with geological information. According to seismotomographic data of the surface waves, low-velocity anomalies are distinguished in the model of the structure of the volcanic edifice. They are asymmetric relative to the volcano cone and are allocated to loose pyroclastic deposits of past eruptions and to deep sources of hydrothermal activity. 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According to seismotomographic data of the surface waves, low-velocity anomalies are distinguished in the model of the structure of the volcanic edifice. They are asymmetric relative to the volcano cone and are allocated to loose pyroclastic deposits of past eruptions and to deep sources of hydrothermal activity. Perhaps the migration of fluids in these hydrothermal vents to the north and west of the volcano and their interaction with the magma chamber in the upper crust caused the explosive eruption.</description><subject>Ambient noise</subject><subject>Anomalies</subject><subject>Body waves</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Eruptions</subject><subject>Fluids</subject><subject>Hydrothermal activity</subject><subject>Hydrothermal springs</subject><subject>Hydrothermal systems (Geology)</subject><subject>Hydrothermal vents</subject><subject>Lava</subject><subject>Magma</subject><subject>Magma chambers</subject><subject>Surface waves</subject><subject>Tomography</subject><subject>Vents</subject><subject>Volcanic activity</subject><subject>Volcanic cones</subject><subject>Volcanic eruptions</subject><subject>Volcanoes</subject><subject>Volcanology</subject><issn>1028-334X</issn><issn>1531-8354</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kUtPGzEUhUdVkUgDP4CdJTbtYsDXj3kso6i0CAQSCYjdyGPfSSZkxlPbEyn_HqdB6qJCXtg653z2kW-SXAC9AuDiegGUFZyLVwYAlAr6JZmA5JAWXIqv8Rzt9OCfJt-838SEELKcJLvlGskiuFGH0SGxDQlReB4GdGTuRh9IjT2qsP6r36muVtt-T17sVqveku8LO0Yv6nqtwpv6QZ5wh2qLhjTOdmTW1S32gTzY1iNZ2s6unBrW-7PkpFFbj-cf-zR5vvm5nP9O7x9_3c5n96ninIa0kKbWGVBtGixNDjXDPC-FLrXktJAsy5kQBow0wqDMS4aNKkHlsjYMapXxaXJ5vHdw9s-IPlQbO7o-PlmxDATL4k-VMXV1TK1i86rtGxuc0nEZ7Fpte2zaqM-yoqAitjkAcAS0s947bKrBtZ1y-wpodZhH9d88IsOOjI_ZfoXuX5XPoXfvtIxr</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Belovezhets, N. 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| source | Springer Nature - Complete Springer Journals |
| subjects | Ambient noise Anomalies Body waves Earth and Environmental Science Earth Sciences Eruptions Fluids Hydrothermal activity Hydrothermal springs Hydrothermal systems (Geology) Hydrothermal vents Lava Magma Magma chambers Surface waves Tomography Vents Volcanic activity Volcanic cones Volcanic eruptions Volcanoes Volcanology |
| title | The Structure of the Upper Crust beneath the Kambalny Volcano (South Kamchatka) Revealed from Ambient Noise Tomography |
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