Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific)
Investigation of active faults is crucial for the seismic hazard assessment and, in the case of volcanic belts, it provides a deeper understanding of the interactions between volcanism and tectonic faulting. In this study, we report the results of the first paleoseismological and tephrochronological...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/47813/ https://oceanrep.geomar.de/id/eprint/47813/1/Zelenin.pdf https://oceanrep.geomar.de/id/eprint/47813/2/jqs3145-sup-0001-zelenin_appendix.docx https://oceanrep.geomar.de/id/eprint/47813/3/jqs3145-sup-0002-zelenin_supporting https://doi.org/10.1002/jqs.3145 |
id |
ftoceanrep:oai:oceanrep.geomar.de:47813 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:47813 2023-05-15T16:59:16+02:00 Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) Zelenin, Egor Kozhurin, Andrey Ponomareva, Vera Portnyagin, Maxim 2020-02 text other https://oceanrep.geomar.de/id/eprint/47813/ https://oceanrep.geomar.de/id/eprint/47813/1/Zelenin.pdf https://oceanrep.geomar.de/id/eprint/47813/2/jqs3145-sup-0001-zelenin_appendix.docx https://oceanrep.geomar.de/id/eprint/47813/3/jqs3145-sup-0002-zelenin_supporting https://doi.org/10.1002/jqs.3145 en eng Wiley https://oceanrep.geomar.de/id/eprint/47813/1/Zelenin.pdf https://oceanrep.geomar.de/id/eprint/47813/2/jqs3145-sup-0001-zelenin_appendix.docx https://oceanrep.geomar.de/id/eprint/47813/3/jqs3145-sup-0002-zelenin_supporting Zelenin, E. , Kozhurin, A. , Ponomareva, V. and Portnyagin, M. (2020) Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific). Journal of Quaternary Science, 35 (1-2). pp. 349-361. DOI 10.1002/jqs.3145 <https://doi.org/10.1002/jqs.3145>. doi:10.1002/jqs.3145 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2020 ftoceanrep https://doi.org/10.1002/jqs.3145 2023-04-07T15:47:19Z Investigation of active faults is crucial for the seismic hazard assessment and, in the case of volcanic belts, it provides a deeper understanding of the interactions between volcanism and tectonic faulting. In this study, we report the results of the first paleoseismological and tephrochronological investigation undertaken on Holocene faulting in Kamchatka's volcanic belts. The studied trenches and additional excavations are located along the axial fault zone of the Eastern Volcanic Front, where the earlier dated tephra layers provide a robust age control of the faulting events. Electron microprobe analysis of glass from 22 tephra samples permitted correlations among the disparate tephra profiles for constructing a summary tephra sequence. The latter, together with published geochronological data, allowed the construction of a Bayesian age model. Detailed examination of the tephra layers deformed by faulting allowed us to reconstruct and date six faulting events with the offsets of 1 to 20 cm indicating paleoearthquakes with magnitudes of Mw < 5.4. Holocene crustal seismicity of the Eastern Volcanic Front manifests temporal clustering rather than a uniform flux of events. However, no correlation between dated seismic events and the largest Holocene eruptions of proximal volcanoes was observed. Article in Journal/Newspaper Kamchatka Kamchatka Peninsula OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Pacific Journal of Quaternary Science 35 1-2 349 361 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Investigation of active faults is crucial for the seismic hazard assessment and, in the case of volcanic belts, it provides a deeper understanding of the interactions between volcanism and tectonic faulting. In this study, we report the results of the first paleoseismological and tephrochronological investigation undertaken on Holocene faulting in Kamchatka's volcanic belts. The studied trenches and additional excavations are located along the axial fault zone of the Eastern Volcanic Front, where the earlier dated tephra layers provide a robust age control of the faulting events. Electron microprobe analysis of glass from 22 tephra samples permitted correlations among the disparate tephra profiles for constructing a summary tephra sequence. The latter, together with published geochronological data, allowed the construction of a Bayesian age model. Detailed examination of the tephra layers deformed by faulting allowed us to reconstruct and date six faulting events with the offsets of 1 to 20 cm indicating paleoearthquakes with magnitudes of Mw < 5.4. Holocene crustal seismicity of the Eastern Volcanic Front manifests temporal clustering rather than a uniform flux of events. However, no correlation between dated seismic events and the largest Holocene eruptions of proximal volcanoes was observed. |
format |
Article in Journal/Newspaper |
author |
Zelenin, Egor Kozhurin, Andrey Ponomareva, Vera Portnyagin, Maxim |
spellingShingle |
Zelenin, Egor Kozhurin, Andrey Ponomareva, Vera Portnyagin, Maxim Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
author_facet |
Zelenin, Egor Kozhurin, Andrey Ponomareva, Vera Portnyagin, Maxim |
author_sort |
Zelenin, Egor |
title |
Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
title_short |
Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
title_full |
Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
title_fullStr |
Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
title_full_unstemmed |
Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific) |
title_sort |
tephrochronological dating of paleoearthquakes in active volcanic arcs: a case of the eastern volcanic front on the kamchatka peninsula (northwest pacific) |
publisher |
Wiley |
publishDate |
2020 |
url |
https://oceanrep.geomar.de/id/eprint/47813/ https://oceanrep.geomar.de/id/eprint/47813/1/Zelenin.pdf https://oceanrep.geomar.de/id/eprint/47813/2/jqs3145-sup-0001-zelenin_appendix.docx https://oceanrep.geomar.de/id/eprint/47813/3/jqs3145-sup-0002-zelenin_supporting https://doi.org/10.1002/jqs.3145 |
long_lat |
ENVELOPE(160.000,160.000,56.000,56.000) |
geographic |
Kamchatka Peninsula Pacific |
geographic_facet |
Kamchatka Peninsula Pacific |
genre |
Kamchatka Kamchatka Peninsula |
genre_facet |
Kamchatka Kamchatka Peninsula |
op_relation |
https://oceanrep.geomar.de/id/eprint/47813/1/Zelenin.pdf https://oceanrep.geomar.de/id/eprint/47813/2/jqs3145-sup-0001-zelenin_appendix.docx https://oceanrep.geomar.de/id/eprint/47813/3/jqs3145-sup-0002-zelenin_supporting Zelenin, E. , Kozhurin, A. , Ponomareva, V. and Portnyagin, M. (2020) Tephrochronological dating of paleoearthquakes in active volcanic arcs: A case of the Eastern Volcanic Front on the Kamchatka Peninsula (northwest Pacific). Journal of Quaternary Science, 35 (1-2). pp. 349-361. DOI 10.1002/jqs.3145 <https://doi.org/10.1002/jqs.3145>. doi:10.1002/jqs.3145 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/jqs.3145 |
container_title |
Journal of Quaternary Science |
container_volume |
35 |
container_issue |
1-2 |
container_start_page |
349 |
op_container_end_page |
361 |
_version_ |
1766051493204459520 |