Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments
Kamchatka is one of the world’s most active volcanic regions and has hosted many explosive eruptions during the Holocene. These eruptions had the potential to disperse tephra over wide areas, forming time-synchronous markers wherever those tephras are found. Recent research in Kamchatka has begun to...
Published in: | Global and Planetary Change |
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Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2015
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Online Access: | https://pure.qub.ac.uk/en/publications/7a74655d-c723-45e8-b63b-9a99f660035f https://doi.org/10.1016/j.gloplacha.2015.04.006 https://pureadmin.qub.ac.uk/ws/files/15913140/GPC_Kamchatkan_tephra_REV.pdf https://pureadmin.qub.ac.uk/ws/files/15915340/Distal_tephrochronology_in_volcanic_regions.pdf |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/7a74655d-c723-45e8-b63b-9a99f660035f 2024-06-23T07:54:17+00:00 Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments Plunkett, Gill Coulter, Sarah E. Ponomareva, Vera V. Blaauw, Maarten Klimaschewski, Andrea Hammarlund, Dan 2015-11 application/pdf https://pure.qub.ac.uk/en/publications/7a74655d-c723-45e8-b63b-9a99f660035f https://doi.org/10.1016/j.gloplacha.2015.04.006 https://pureadmin.qub.ac.uk/ws/files/15913140/GPC_Kamchatkan_tephra_REV.pdf https://pureadmin.qub.ac.uk/ws/files/15915340/Distal_tephrochronology_in_volcanic_regions.pdf eng eng https://pure.qub.ac.uk/en/publications/7a74655d-c723-45e8-b63b-9a99f660035f info:eu-repo/semantics/openAccess Plunkett , G , Coulter , S E , Ponomareva , V V , Blaauw , M , Klimaschewski , A & Hammarlund , D 2015 , ' Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments ' , Global and Planetary Change , vol. 134 , pp. 26-40 . https://doi.org/10.1016/j.gloplacha.2015.04.006 distal tephra tephrochronology age-modelling Kamchatka Holocene article 2015 ftqueensubelpubl https://doi.org/10.1016/j.gloplacha.2015.04.006 2024-06-04T14:22:29Z Kamchatka is one of the world’s most active volcanic regions and has hosted many explosive eruptions during the Holocene. These eruptions had the potential to disperse tephra over wide areas, forming time-synchronous markers wherever those tephras are found. Recent research in Kamchatka has begun to focus on the geochemical analysis of individual glass shards in order to characterise tephra layers. We have applied this approach to the study of visible tephras from three lakes – one in central and two in northern Kamchatka – with the aim of identifying key tephras and potential issues in the application of distal (>100 km from an active volcano) tephra in volcanically complex regions. In total, 23 tephras from 22 tephra beds have been geochemically analysed, representing products from at least four volcanic systems in Kamchatka. We demonstrate that distal lake sediments in the region can yield reliable tephrostratigraphies, capturing tephra from eruptions that have the greatest potential to disperse volcanic ash beyond the region. We draw attention to issues relating to correlating and distinguishing key marker horizons from the highly active Shiveluch Volcano, namely the need to ensure inter-lab comparability of geochemical data and good chronological control of the proximal and distal tephras. Importantly, we have also extended the known distribution of two key tephra isochrons from the Ksudach volcano. Our work contributes valuable glass geochemical on data several key marker beds that will facilitate future tephra and palaeoenvironmental research within and beyond Kamchatka. Article in Journal/Newspaper Kamchatka Queen's University Belfast Research Portal Global and Planetary Change 134 26 40 |
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Open Polar |
collection |
Queen's University Belfast Research Portal |
op_collection_id |
ftqueensubelpubl |
language |
English |
topic |
distal tephra tephrochronology age-modelling Kamchatka Holocene |
spellingShingle |
distal tephra tephrochronology age-modelling Kamchatka Holocene Plunkett, Gill Coulter, Sarah E. Ponomareva, Vera V. Blaauw, Maarten Klimaschewski, Andrea Hammarlund, Dan Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
topic_facet |
distal tephra tephrochronology age-modelling Kamchatka Holocene |
description |
Kamchatka is one of the world’s most active volcanic regions and has hosted many explosive eruptions during the Holocene. These eruptions had the potential to disperse tephra over wide areas, forming time-synchronous markers wherever those tephras are found. Recent research in Kamchatka has begun to focus on the geochemical analysis of individual glass shards in order to characterise tephra layers. We have applied this approach to the study of visible tephras from three lakes – one in central and two in northern Kamchatka – with the aim of identifying key tephras and potential issues in the application of distal (>100 km from an active volcano) tephra in volcanically complex regions. In total, 23 tephras from 22 tephra beds have been geochemically analysed, representing products from at least four volcanic systems in Kamchatka. We demonstrate that distal lake sediments in the region can yield reliable tephrostratigraphies, capturing tephra from eruptions that have the greatest potential to disperse volcanic ash beyond the region. We draw attention to issues relating to correlating and distinguishing key marker horizons from the highly active Shiveluch Volcano, namely the need to ensure inter-lab comparability of geochemical data and good chronological control of the proximal and distal tephras. Importantly, we have also extended the known distribution of two key tephra isochrons from the Ksudach volcano. Our work contributes valuable glass geochemical on data several key marker beds that will facilitate future tephra and palaeoenvironmental research within and beyond Kamchatka. |
format |
Article in Journal/Newspaper |
author |
Plunkett, Gill Coulter, Sarah E. Ponomareva, Vera V. Blaauw, Maarten Klimaschewski, Andrea Hammarlund, Dan |
author_facet |
Plunkett, Gill Coulter, Sarah E. Ponomareva, Vera V. Blaauw, Maarten Klimaschewski, Andrea Hammarlund, Dan |
author_sort |
Plunkett, Gill |
title |
Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
title_short |
Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
title_full |
Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
title_fullStr |
Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
title_full_unstemmed |
Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments |
title_sort |
distal tephrochronology in volcanic regions: challenges and insights from kamchatkan lake sediments |
publishDate |
2015 |
url |
https://pure.qub.ac.uk/en/publications/7a74655d-c723-45e8-b63b-9a99f660035f https://doi.org/10.1016/j.gloplacha.2015.04.006 https://pureadmin.qub.ac.uk/ws/files/15913140/GPC_Kamchatkan_tephra_REV.pdf https://pureadmin.qub.ac.uk/ws/files/15915340/Distal_tephrochronology_in_volcanic_regions.pdf |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Plunkett , G , Coulter , S E , Ponomareva , V V , Blaauw , M , Klimaschewski , A & Hammarlund , D 2015 , ' Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments ' , Global and Planetary Change , vol. 134 , pp. 26-40 . https://doi.org/10.1016/j.gloplacha.2015.04.006 |
op_relation |
https://pure.qub.ac.uk/en/publications/7a74655d-c723-45e8-b63b-9a99f660035f |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2015.04.006 |
container_title |
Global and Planetary Change |
container_volume |
134 |
container_start_page |
26 |
op_container_end_page |
40 |
_version_ |
1802646398484611072 |