Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography
International audience Klyuchevskoy and surrounding volcanoes in central Kamchatka form the Northern Group of Volcanoes (NGV), which is an area of particularly diverse and intensive Pleistocene‐Holocene volcanism. In this study, we present a new seismic tomographic model of the crust and uppermost m...
Published in: | Journal of Geophysical Research: Solid Earth |
---|---|
Main Authors: | , , , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.science/hal-03088561 https://hal.science/hal-03088561/document https://hal.science/hal-03088561/file/Koulakov_etal_JGR2020.pdf https://doi.org/10.1029/2020JB020097 |
id |
ftinsu:oai:HAL:hal-03088561v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsu:oai:HAL:hal-03088561v1 2024-04-28T08:26:53+00:00 Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography Koulakov, Ivan Shapiro, Nikola, M. Sens‐schönfelder, Christoph Luehr, Birger, G Gordeev, Evgeny, I Jakovlev, Andrey Abkadyrov, Ilyas Chebrov, Danila, V Bushenkova, Natalia Droznina, Svetlana, y Senyukov, Sergey, L Novgorodova, Angelika Stupina, Tatyana Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) 2020-10 https://hal.science/hal-03088561 https://hal.science/hal-03088561/document https://hal.science/hal-03088561/file/Koulakov_etal_JGR2020.pdf https://doi.org/10.1029/2020JB020097 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JB020097 hal-03088561 https://hal.science/hal-03088561 https://hal.science/hal-03088561/document https://hal.science/hal-03088561/file/Koulakov_etal_JGR2020.pdf doi:10.1029/2020JB020097 info:eu-repo/semantics/OpenAccess ISSN: 2169-9313 EISSN: 2169-9356 Journal of Geophysical Research : Solid Earth https://hal.science/hal-03088561 Journal of Geophysical Research : Solid Earth, 2020, 125 (10), ⟨10.1029/2020JB020097⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2020 ftinsu https://doi.org/10.1029/2020JB020097 2024-04-05T00:39:09Z International audience Klyuchevskoy and surrounding volcanoes in central Kamchatka form the Northern Group of Volcanoes (NGV), which is an area of particularly diverse and intensive Pleistocene‐Holocene volcanism. In this study, we present a new seismic tomographic model of the crust and uppermost mantle beneath NGV based on local earthquake data recorded by several permanent and temporary seismic networks including a large‐scale experiment that was conducted in 2015–2016 by an international scientific consortium. Having an unprecedented resolution for this part of Kamchatka, the new model reveals many features associated with the present and past volcanic activity within the NGV. In the upper crust, we found several prominent high‐velocity anomalies interpreted as traces of large basaltic shield volcanoes, which were hidden by more recent volcanic structures and sediments. We interpret the mantle structure to reflect asthenospheric flow up through a slab window below the Kamchatka‐Aleutian junction that feeds the entire NGV. The interaction of the hot asthenospheric material with fluids released from the slab determines the particular volcanic activity within the NGV. We argue that the eastern branch of the Central Kamchatka Depression, which is associated with a prominent low‐velocity anomaly in the uppermost mantle, was formed as a recent rift zone separating the NGV from the Kamchatka Eastern Ranges. Article in Journal/Newspaper Kamchatka Institut national des sciences de l'Univers: HAL-INSU Journal of Geophysical Research: Solid Earth 125 10 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Koulakov, Ivan Shapiro, Nikola, M. Sens‐schönfelder, Christoph Luehr, Birger, G Gordeev, Evgeny, I Jakovlev, Andrey Abkadyrov, Ilyas Chebrov, Danila, V Bushenkova, Natalia Droznina, Svetlana, y Senyukov, Sergey, L Novgorodova, Angelika Stupina, Tatyana Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Klyuchevskoy and surrounding volcanoes in central Kamchatka form the Northern Group of Volcanoes (NGV), which is an area of particularly diverse and intensive Pleistocene‐Holocene volcanism. In this study, we present a new seismic tomographic model of the crust and uppermost mantle beneath NGV based on local earthquake data recorded by several permanent and temporary seismic networks including a large‐scale experiment that was conducted in 2015–2016 by an international scientific consortium. Having an unprecedented resolution for this part of Kamchatka, the new model reveals many features associated with the present and past volcanic activity within the NGV. In the upper crust, we found several prominent high‐velocity anomalies interpreted as traces of large basaltic shield volcanoes, which were hidden by more recent volcanic structures and sediments. We interpret the mantle structure to reflect asthenospheric flow up through a slab window below the Kamchatka‐Aleutian junction that feeds the entire NGV. The interaction of the hot asthenospheric material with fluids released from the slab determines the particular volcanic activity within the NGV. We argue that the eastern branch of the Central Kamchatka Depression, which is associated with a prominent low‐velocity anomaly in the uppermost mantle, was formed as a recent rift zone separating the NGV from the Kamchatka Eastern Ranges. |
author2 |
Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Koulakov, Ivan Shapiro, Nikola, M. Sens‐schönfelder, Christoph Luehr, Birger, G Gordeev, Evgeny, I Jakovlev, Andrey Abkadyrov, Ilyas Chebrov, Danila, V Bushenkova, Natalia Droznina, Svetlana, y Senyukov, Sergey, L Novgorodova, Angelika Stupina, Tatyana |
author_facet |
Koulakov, Ivan Shapiro, Nikola, M. Sens‐schönfelder, Christoph Luehr, Birger, G Gordeev, Evgeny, I Jakovlev, Andrey Abkadyrov, Ilyas Chebrov, Danila, V Bushenkova, Natalia Droznina, Svetlana, y Senyukov, Sergey, L Novgorodova, Angelika Stupina, Tatyana |
author_sort |
Koulakov, Ivan |
title |
Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
title_short |
Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
title_full |
Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
title_fullStr |
Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
title_full_unstemmed |
Mantle and Crustal Sources of Magmatic Activity of Klyuchevskoy and Surrounding Volcanoes in Kamchatka Inferred From Earthquake Tomography |
title_sort |
mantle and crustal sources of magmatic activity of klyuchevskoy and surrounding volcanoes in kamchatka inferred from earthquake tomography |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03088561 https://hal.science/hal-03088561/document https://hal.science/hal-03088561/file/Koulakov_etal_JGR2020.pdf https://doi.org/10.1029/2020JB020097 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
ISSN: 2169-9313 EISSN: 2169-9356 Journal of Geophysical Research : Solid Earth https://hal.science/hal-03088561 Journal of Geophysical Research : Solid Earth, 2020, 125 (10), ⟨10.1029/2020JB020097⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JB020097 hal-03088561 https://hal.science/hal-03088561 https://hal.science/hal-03088561/document https://hal.science/hal-03088561/file/Koulakov_etal_JGR2020.pdf doi:10.1029/2020JB020097 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2020JB020097 |
container_title |
Journal of Geophysical Research: Solid Earth |
container_volume |
125 |
container_issue |
10 |
_version_ |
1797586085486788608 |