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 beg...
Published in: | Global and Planetary Change |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2015
|
Subjects: | |
Online Access: | https://lup.lub.lu.se/record/8539654 https://doi.org/10.1016/j.gloplacha.2015.04.006 |
id |
ftulundlup:oai:lup.lub.lu.se:e4fa86af-013c-4bf3-ab91-929243f3d63f |
---|---|
record_format |
openpolar |
spelling |
ftulundlup:oai:lup.lub.lu.se:e4fa86af-013c-4bf3-ab91-929243f3d63f 2023-05-15T16:58:24+02:00 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 https://lup.lub.lu.se/record/8539654 https://doi.org/10.1016/j.gloplacha.2015.04.006 eng eng Elsevier https://lup.lub.lu.se/record/8539654 http://dx.doi.org/10.1016/j.gloplacha.2015.04.006 wos:000365369900004 scopus:84946579804 Global and Planetary Change; 134, pp 26-40 (2015) ISSN: 1872-6364 Geology Distal tephra Tephrothronology Age-modelling Kamchatka Holocene contributiontojournal/article info:eu-repo/semantics/article text 2015 ftulundlup https://doi.org/10.1016/j.gloplacha.2015.04.006 2023-02-01T23:29:46Z 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. (C) 2015 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Kamchatka Lund University Publications (LUP) Global and Planetary Change 134 26 40 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Distal tephra Tephrothronology Age-modelling Kamchatka Holocene |
spellingShingle |
Geology Distal tephra Tephrothronology 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 |
Geology Distal tephra Tephrothronology 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. (C) 2015 Elsevier B.V. All rights reserved. |
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 |
publisher |
Elsevier |
publishDate |
2015 |
url |
https://lup.lub.lu.se/record/8539654 https://doi.org/10.1016/j.gloplacha.2015.04.006 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Global and Planetary Change; 134, pp 26-40 (2015) ISSN: 1872-6364 |
op_relation |
https://lup.lub.lu.se/record/8539654 http://dx.doi.org/10.1016/j.gloplacha.2015.04.006 wos:000365369900004 scopus:84946579804 |
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_ |
1766050389730263040 |