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A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu

Paul Albert Orcid Logo, Hannah Buckland, Gwydion Jones

Quaternary Science Reviews

Swansea University Authors: Paul Albert Orcid Logo, Hannah Buckland, Gwydion Jones

Abstract

We present the findings of a detailed non-visible (cryptotephra) tephra investigation of the Lake Suigetsu (Japan) sedimentary sequence spanning ~120 to 50 ka. Thirty-nine new cryptotephra and two visible tephra horizons are identified during this interval interspersed between visible tephra layers...

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Published in: Quaternary Science Reviews
Published: Elsevier
URI: https://cronfa.swan.ac.uk/Record/cronfa68033
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spelling v2 68033 2024-10-22 A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu 7f8db9327402511d4d92849cb79af644 0000-0002-6757-1452 Paul Albert Paul Albert true false bb64dcef565af9f792254db854365a5f Hannah Buckland Hannah Buckland true false 60e37970b281337e44731ed4c197e930 Gwydion Jones Gwydion Jones true false 2024-10-22 BGPS We present the findings of a detailed non-visible (cryptotephra) tephra investigation of the Lake Suigetsu (Japan) sedimentary sequence spanning ~120 to 50 ka. Thirty-nine new cryptotephra and two visible tephra horizons are identified during this interval interspersed between visible tephra layers associated with large-magnitude eruptions and regional event markers (e.g., Aso-4, K-Tz, Ata). The newly identified volcanic deposits are geochemically analysed using major (EMP) and trace (LA-ICP-MS) element glass analyses, and the chemical fingerprints are used to trace these deposits to subduction related volcanoes located along the three main Japanese islands (Kyushu, Honshu and Hokkaido), as well as nearby intraplate volcanoes. Our findings provide geochemical, chronological and ash-fall constraints on the activity at multiple volcanic centres; in particular, the Kirishima volcanic complex in the southern volcanic region of Kyushu. Furthermore, the Lake Suigetsu cryptotephra record reveals distal ash-fall from two notable large magnitude (≥M6.0) eruptions, the Plinian Sambe Kisuki (SK) eruption and the caldera-forming Toya eruption, both of which are important widespread tephrostratigraphic markers suitable for linking regional terrestrial and marine sequences. Using the Lake Suigetsu age-depth model, they are dated to 100.4 ± 3.1 ka (±1s) and 108.1 ± 3.9 ka (±1s), respectively. Finally, our investigation reveals numerous eruption deposits which have not yet been identified in near vent sequences, indicating eruption under-recording. This research re-affirms Lake Suigetsu as the single most comprehensive ash-fall record of East Asian explosive volcanism over the past 150 kyr, and contributes significantly to our understanding of the timing and ash 8 dispersals of pre-historic eruptions. Journal Article Quaternary Science Reviews Elsevier 0 0 0 0001-01-01 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee UKRI Future Leaders Fellowship, NERC Doctoral Training Programme, Japan Society for the Promotion of Science (JSPS). NE/S007474/1, MR/S035478/1, KAKENHI‐15H021443, KAKENHI‐22H02380, KAKENHI12 JP19K13438. 2024-10-22T09:22:01.3151752 2024-10-22T08:54:50.3798485 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Paul Albert 0000-0002-6757-1452 1 Hannah Buckland 2 Gwydion Jones 3
title A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
spellingShingle A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
Paul Albert
Hannah Buckland
Gwydion Jones
title_short A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
title_full A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
title_fullStr A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
title_full_unstemmed A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
title_sort A detailed record of large explosive eruptions from Japan between ~120 and 50 ka preserved at Lake Suigetsu
author_id_str_mv 7f8db9327402511d4d92849cb79af644
bb64dcef565af9f792254db854365a5f
60e37970b281337e44731ed4c197e930
author_id_fullname_str_mv 7f8db9327402511d4d92849cb79af644_***_Paul Albert
bb64dcef565af9f792254db854365a5f_***_Hannah Buckland
60e37970b281337e44731ed4c197e930_***_Gwydion Jones
author Paul Albert
Hannah Buckland
Gwydion Jones
author2 Paul Albert
Hannah Buckland
Gwydion Jones
format Journal article
container_title Quaternary Science Reviews
institution Swansea University
publisher Elsevier
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
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description We present the findings of a detailed non-visible (cryptotephra) tephra investigation of the Lake Suigetsu (Japan) sedimentary sequence spanning ~120 to 50 ka. Thirty-nine new cryptotephra and two visible tephra horizons are identified during this interval interspersed between visible tephra layers associated with large-magnitude eruptions and regional event markers (e.g., Aso-4, K-Tz, Ata). The newly identified volcanic deposits are geochemically analysed using major (EMP) and trace (LA-ICP-MS) element glass analyses, and the chemical fingerprints are used to trace these deposits to subduction related volcanoes located along the three main Japanese islands (Kyushu, Honshu and Hokkaido), as well as nearby intraplate volcanoes. Our findings provide geochemical, chronological and ash-fall constraints on the activity at multiple volcanic centres; in particular, the Kirishima volcanic complex in the southern volcanic region of Kyushu. Furthermore, the Lake Suigetsu cryptotephra record reveals distal ash-fall from two notable large magnitude (≥M6.0) eruptions, the Plinian Sambe Kisuki (SK) eruption and the caldera-forming Toya eruption, both of which are important widespread tephrostratigraphic markers suitable for linking regional terrestrial and marine sequences. Using the Lake Suigetsu age-depth model, they are dated to 100.4 ± 3.1 ka (±1s) and 108.1 ± 3.9 ka (±1s), respectively. Finally, our investigation reveals numerous eruption deposits which have not yet been identified in near vent sequences, indicating eruption under-recording. This research re-affirms Lake Suigetsu as the single most comprehensive ash-fall record of East Asian explosive volcanism over the past 150 kyr, and contributes significantly to our understanding of the timing and ash 8 dispersals of pre-historic eruptions.
published_date 0001-01-01T09:22:00Z
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