Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography
The area of Central Kamchatka limited by latitudes of 52.5 and 54 degrees includes six active volcanoes (Avacha, Koryaksky, Zhupanovsky, Mutnovsky, Gorely and Opala), as well as a number of dormant and extinct stratovolcanoes, monogenic cones and large calderas. Furthermore, it contains the Malko-Pe...
Published in: | Journal of Volcanology and Geothermal Research |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | http://repo.kscnet.ru/4430/ https://doi.org/10.1016/j.jvolgeores.2023.107768 |
id |
ftinstvs:oai:repo.kscnet.ru:4430 |
---|---|
record_format |
openpolar |
spelling |
ftinstvs:oai:repo.kscnet.ru:4430 2023-05-15T16:58:51+02:00 Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography Bushenkova N.A. Koulakov I.Yu. Bergal-Kuvikas Olga Shapiro Nikolay M. Gordeev E.I. Chebrov D.V. Abkadyrov Ilyas Jakovlev Andrey Stupina Tatiana Novgorodova A. Droznina S.Ya. Huang H. 2023-02 http://repo.kscnet.ru/4430/ https://doi.org/10.1016/j.jvolgeores.2023.107768 en eng Bushenkova N.A. <http://repo.kscnet.ru/view/creators/Bushenkova=3AN=2EA=2E=3A=3A.html>, Koulakov I.Yu. <http://repo.kscnet.ru/view/creators/Koulakov=3AI=2EYu=2E=3A=3A.html>, Bergal-Kuvikas Olga <http://repo.kscnet.ru/view/creators/Bergal-Kuvikas=3AOlga=3A=3A.html>, Shapiro Nikolay M. <http://repo.kscnet.ru/view/creators/Shapiro=3ANikolay_M=2E=3A=3A.html>, Gordeev E.I. <http://repo.kscnet.ru/view/creators/Gordeev=3AE=2EI=2E=3A=3A.html>, Chebrov D.V. <http://repo.kscnet.ru/view/creators/Chebrov=3AD=2EV=2E=3A=3A.html>, Abkadyrov Ilyas <http://repo.kscnet.ru/view/creators/Abkadyrov=3AIlyas=3A=3A.html>, Jakovlev Andrey <http://repo.kscnet.ru/view/creators/Jakovlev=3AAndrey=3A=3A.html>, Stupina Tatiana <http://repo.kscnet.ru/view/creators/Stupina=3ATatiana=3A=3A.html>, Novgorodova A. <http://repo.kscnet.ru/view/creators/Novgorodova=3AA=2E=3A=3A.html>, Droznina S.Ya. <http://repo.kscnet.ru/view/creators/Droznina=3AS=2EYa=2E=3A=3A.html>, Huang H. <http://repo.kscnet.ru/view/creators/Huang=3AH=2E=3A=3A.html> (2023) Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography // Journal of Volcanology and Geothermal Research. Vol. 107768. doi: https://doi.org/10.1016/j.jvolgeores.2023.107768. Асача Бакенинг Бархатная Сопка Авачинский Горелый Корякский Козельский Мутновский Вилючинский Заварицкого Жупановский Статья PeerReviewed 2023 ftinstvs https://doi.org/10.1016/j.jvolgeores.2023.107768 2023-02-14T01:03:15Z The area of Central Kamchatka limited by latitudes of 52.5 and 54 degrees includes six active volcanoes (Avacha, Koryaksky, Zhupanovsky, Mutnovsky, Gorely and Opala), as well as a number of dormant and extinct stratovolcanoes, monogenic cones and large calderas. Furthermore, it contains the Malko-Petropavlovsk fracture zone (MPZ), which marks the boundary between two distinct subduction regimes to the south and to the north. We present a new seismic tomography model for this area, which was constructed based on the joint use of data of the Kamchatkan permanent seismic stations and a temporary network installed in the region in 2019–2020. A series of synthetic tests have demonstrated fair resolution of the derived seismic velocity structures in the crust and in the mantle wedge down to ~150 km. The distributions of the P and S wave velocities, and especially the Vp/Vs ratio, clearly highlight the connection between the volcanic centers in Central Kamchatka and the subducting slab. At depths below 40 km depth, we observe two large low-velocity anomalies centered below Zhupanovsky and Mutnovsky volcanoes and covering all other volcanoes in the area. In the vertical sections, the corresponding anomalies of high Vp/Vs ratio have mushroom shapes with the heads spreading along the bottom of the crust, which probably represent the underplating of magma material that feeds the volcanoes of the groups. The tomography results also reveal some important tectonic features, such as a V-shaped fault system in the Avacha Graben, which is the part of the MPZ. Text Kamchatka Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky: IVS FEB RAS Repository Avacha ENVELOPE(158.503,158.503,53.040,53.040) Opala ENVELOPE(156.491,156.491,51.930,51.930) Petropavlovsk ENVELOPE(158.626,158.626,53.067,53.067) Journal of Volcanology and Geothermal Research 435 107768 |
institution |
Open Polar |
collection |
Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky: IVS FEB RAS Repository |
op_collection_id |
ftinstvs |
language |
English |
topic |
Асача Бакенинг Бархатная Сопка Авачинский Горелый Корякский Козельский Мутновский Вилючинский Заварицкого Жупановский |
spellingShingle |
Асача Бакенинг Бархатная Сопка Авачинский Горелый Корякский Козельский Мутновский Вилючинский Заварицкого Жупановский Bushenkova N.A. Koulakov I.Yu. Bergal-Kuvikas Olga Shapiro Nikolay M. Gordeev E.I. Chebrov D.V. Abkadyrov Ilyas Jakovlev Andrey Stupina Tatiana Novgorodova A. Droznina S.Ya. Huang H. Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
topic_facet |
Асача Бакенинг Бархатная Сопка Авачинский Горелый Корякский Козельский Мутновский Вилючинский Заварицкого Жупановский |
description |
The area of Central Kamchatka limited by latitudes of 52.5 and 54 degrees includes six active volcanoes (Avacha, Koryaksky, Zhupanovsky, Mutnovsky, Gorely and Opala), as well as a number of dormant and extinct stratovolcanoes, monogenic cones and large calderas. Furthermore, it contains the Malko-Petropavlovsk fracture zone (MPZ), which marks the boundary between two distinct subduction regimes to the south and to the north. We present a new seismic tomography model for this area, which was constructed based on the joint use of data of the Kamchatkan permanent seismic stations and a temporary network installed in the region in 2019–2020. A series of synthetic tests have demonstrated fair resolution of the derived seismic velocity structures in the crust and in the mantle wedge down to ~150 km. The distributions of the P and S wave velocities, and especially the Vp/Vs ratio, clearly highlight the connection between the volcanic centers in Central Kamchatka and the subducting slab. At depths below 40 km depth, we observe two large low-velocity anomalies centered below Zhupanovsky and Mutnovsky volcanoes and covering all other volcanoes in the area. In the vertical sections, the corresponding anomalies of high Vp/Vs ratio have mushroom shapes with the heads spreading along the bottom of the crust, which probably represent the underplating of magma material that feeds the volcanoes of the groups. The tomography results also reveal some important tectonic features, such as a V-shaped fault system in the Avacha Graben, which is the part of the MPZ. |
format |
Text |
author |
Bushenkova N.A. Koulakov I.Yu. Bergal-Kuvikas Olga Shapiro Nikolay M. Gordeev E.I. Chebrov D.V. Abkadyrov Ilyas Jakovlev Andrey Stupina Tatiana Novgorodova A. Droznina S.Ya. Huang H. |
author_facet |
Bushenkova N.A. Koulakov I.Yu. Bergal-Kuvikas Olga Shapiro Nikolay M. Gordeev E.I. Chebrov D.V. Abkadyrov Ilyas Jakovlev Andrey Stupina Tatiana Novgorodova A. Droznina S.Ya. Huang H. |
author_sort |
Bushenkova N.A. |
title |
Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
title_short |
Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
title_full |
Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
title_fullStr |
Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
title_full_unstemmed |
Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography |
title_sort |
connections between arc volcanoes in central kamchatka and the subducting slab inferred from local earthquake seismic tomography |
publishDate |
2023 |
url |
http://repo.kscnet.ru/4430/ https://doi.org/10.1016/j.jvolgeores.2023.107768 |
long_lat |
ENVELOPE(158.503,158.503,53.040,53.040) ENVELOPE(156.491,156.491,51.930,51.930) ENVELOPE(158.626,158.626,53.067,53.067) |
geographic |
Avacha Opala Petropavlovsk |
geographic_facet |
Avacha Opala Petropavlovsk |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_relation |
Bushenkova N.A. <http://repo.kscnet.ru/view/creators/Bushenkova=3AN=2EA=2E=3A=3A.html>, Koulakov I.Yu. <http://repo.kscnet.ru/view/creators/Koulakov=3AI=2EYu=2E=3A=3A.html>, Bergal-Kuvikas Olga <http://repo.kscnet.ru/view/creators/Bergal-Kuvikas=3AOlga=3A=3A.html>, Shapiro Nikolay M. <http://repo.kscnet.ru/view/creators/Shapiro=3ANikolay_M=2E=3A=3A.html>, Gordeev E.I. <http://repo.kscnet.ru/view/creators/Gordeev=3AE=2EI=2E=3A=3A.html>, Chebrov D.V. <http://repo.kscnet.ru/view/creators/Chebrov=3AD=2EV=2E=3A=3A.html>, Abkadyrov Ilyas <http://repo.kscnet.ru/view/creators/Abkadyrov=3AIlyas=3A=3A.html>, Jakovlev Andrey <http://repo.kscnet.ru/view/creators/Jakovlev=3AAndrey=3A=3A.html>, Stupina Tatiana <http://repo.kscnet.ru/view/creators/Stupina=3ATatiana=3A=3A.html>, Novgorodova A. <http://repo.kscnet.ru/view/creators/Novgorodova=3AA=2E=3A=3A.html>, Droznina S.Ya. <http://repo.kscnet.ru/view/creators/Droznina=3AS=2EYa=2E=3A=3A.html>, Huang H. <http://repo.kscnet.ru/view/creators/Huang=3AH=2E=3A=3A.html> (2023) Connections between arc volcanoes in Central Kamchatka and the subducting slab inferred from local earthquake seismic tomography // Journal of Volcanology and Geothermal Research. Vol. 107768. doi: https://doi.org/10.1016/j.jvolgeores.2023.107768. |
op_doi |
https://doi.org/10.1016/j.jvolgeores.2023.107768 |
container_title |
Journal of Volcanology and Geothermal Research |
container_volume |
435 |
container_start_page |
107768 |
_version_ |
1766050961008099328 |