Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin
Here we present the first radiometric age and geochemical (major and trace element and isotope) data for samples from the Hydrographer Ridge, a back arc volcano of the Kurile Island Arc, and a newly discovered chain of volcanoes (“Sonne Volcanoes”) on the northwestern continental slope of the Kurile...
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Online Access: | https://oceanrep.geomar.de/id/eprint/51027/ https://oceanrep.geomar.de/id/eprint/51027/1/geosciences-10-00442-v2.pdf https://doi.org/10.3390/geosciences10110442 |
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ftoceanrep:oai:oceanrep.geomar.de:51027 2023-05-15T17:52:40+02:00 Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin Werner, Reinhard Baranov, Boris Hoernle, Kaj van den Bogaard, Paul Hauff, Folkmar Tararin, Igor 2020-11-06 text https://oceanrep.geomar.de/id/eprint/51027/ https://oceanrep.geomar.de/id/eprint/51027/1/geosciences-10-00442-v2.pdf https://doi.org/10.3390/geosciences10110442 en eng MDPI https://oceanrep.geomar.de/id/eprint/51027/1/geosciences-10-00442-v2.pdf Werner, R., Baranov, B., Hoernle, K. , van den Bogaard, P., Hauff, F. and Tararin, I. (2020) Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin. Open Access Geosciences, 10 (11). Art.Nr. 442. DOI 10.3390/geosciences10110442 <https://doi.org/10.3390/geosciences10110442>. doi:10.3390/geosciences10110442 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2020 ftoceanrep https://doi.org/10.3390/geosciences10110442 2023-04-07T15:52:52Z Here we present the first radiometric age and geochemical (major and trace element and isotope) data for samples from the Hydrographer Ridge, a back arc volcano of the Kurile Island Arc, and a newly discovered chain of volcanoes (“Sonne Volcanoes”) on the northwestern continental slope of the Kurile Basin on the opposite side of the arc. The 40Ar/39Ar age and geochemical data show that Hydrographer Ridge (3.2–3.3 Ma) and the “Sonne Volcanoes” (25.3–25.9 Ma) have very similar trace element and isotope characteristics to those of the Kurile Island Arc, indicating derivation from a common magma source. We conclude that the age of the “Sonne Volcanoes” marks the time of opening of the Kurile Basin, implying slow back arc spreading rates of 1.3–1.8 cm/y. Combined with published data from the Kurile fore arc, our data suggest that the processes of subduction, Kurile Basin opening and frontal arc extension occurred synchronously and that extension in the rear part and in the frontal part of the Kurile Island Arc must have been triggered by the same mechanism. Article in Journal/Newspaper okhotsk sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Okhotsk Geosciences 10 11 442 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Here we present the first radiometric age and geochemical (major and trace element and isotope) data for samples from the Hydrographer Ridge, a back arc volcano of the Kurile Island Arc, and a newly discovered chain of volcanoes (“Sonne Volcanoes”) on the northwestern continental slope of the Kurile Basin on the opposite side of the arc. The 40Ar/39Ar age and geochemical data show that Hydrographer Ridge (3.2–3.3 Ma) and the “Sonne Volcanoes” (25.3–25.9 Ma) have very similar trace element and isotope characteristics to those of the Kurile Island Arc, indicating derivation from a common magma source. We conclude that the age of the “Sonne Volcanoes” marks the time of opening of the Kurile Basin, implying slow back arc spreading rates of 1.3–1.8 cm/y. Combined with published data from the Kurile fore arc, our data suggest that the processes of subduction, Kurile Basin opening and frontal arc extension occurred synchronously and that extension in the rear part and in the frontal part of the Kurile Island Arc must have been triggered by the same mechanism. |
format |
Article in Journal/Newspaper |
author |
Werner, Reinhard Baranov, Boris Hoernle, Kaj van den Bogaard, Paul Hauff, Folkmar Tararin, Igor |
spellingShingle |
Werner, Reinhard Baranov, Boris Hoernle, Kaj van den Bogaard, Paul Hauff, Folkmar Tararin, Igor Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
author_facet |
Werner, Reinhard Baranov, Boris Hoernle, Kaj van den Bogaard, Paul Hauff, Folkmar Tararin, Igor |
author_sort |
Werner, Reinhard |
title |
Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
title_short |
Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
title_full |
Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
title_fullStr |
Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
title_full_unstemmed |
Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin |
title_sort |
discovery of ancient volcanoes in the okhotsk sea (russia): new constraints on the opening history of the kurile back arc basin |
publisher |
MDPI |
publishDate |
2020 |
url |
https://oceanrep.geomar.de/id/eprint/51027/ https://oceanrep.geomar.de/id/eprint/51027/1/geosciences-10-00442-v2.pdf https://doi.org/10.3390/geosciences10110442 |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
okhotsk sea |
genre_facet |
okhotsk sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/51027/1/geosciences-10-00442-v2.pdf Werner, R., Baranov, B., Hoernle, K. , van den Bogaard, P., Hauff, F. and Tararin, I. (2020) Discovery of Ancient Volcanoes in the Okhotsk Sea (Russia): New Constraints on the Opening History of the Kurile Back Arc Basin. Open Access Geosciences, 10 (11). Art.Nr. 442. DOI 10.3390/geosciences10110442 <https://doi.org/10.3390/geosciences10110442>. doi:10.3390/geosciences10110442 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/geosciences10110442 |
container_title |
Geosciences |
container_volume |
10 |
container_issue |
11 |
container_start_page |
442 |
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1766160367016214528 |