A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology
A new and improved Holocene tephra stratigraphy and tephrochronological framework for eastern and northern Iceland is presented. Investigations of a sediment sequence from Lake Lögurinn have revealed a comprehensive tephra record spanning the last 10.200 years. A total of 157 tephra layers have been...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2016
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Online Access: | https://lup.lub.lu.se/record/ba0159ea-d5bd-4663-b0ff-cf14893d7733 https://doi.org/10.1016/j.quascirev.2016.08.011 |
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ftulundlup:oai:lup.lub.lu.se:ba0159ea-d5bd-4663-b0ff-cf14893d7733 2024-05-19T07:42:34+00:00 A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology Gudmundsdóttir, Esther Ruth Larsen, Gudrún Björck, Svante Ingólfsson, Ólafur Striberger, Johan 2016-10-15 https://lup.lub.lu.se/record/ba0159ea-d5bd-4663-b0ff-cf14893d7733 https://doi.org/10.1016/j.quascirev.2016.08.011 eng eng Elsevier https://lup.lub.lu.se/record/ba0159ea-d5bd-4663-b0ff-cf14893d7733 http://dx.doi.org/10.1016/j.quascirev.2016.08.011 scopus:84985018857 wos:000393845900016 Quaternary Science Reviews; 150, pp 234-249 (2016) ISSN: 0277-3791 Geology Holocene Iceland Lake Lögurinn Tephra markers Tephra stratigraphy Tephrochronology contributiontojournal/article info:eu-repo/semantics/article text 2016 ftulundlup https://doi.org/10.1016/j.quascirev.2016.08.011 2024-04-23T23:34:34Z A new and improved Holocene tephra stratigraphy and tephrochronological framework for eastern and northern Iceland is presented. Investigations of a sediment sequence from Lake Lögurinn have revealed a comprehensive tephra record spanning the last 10.200 years. A total of 157 tephra layers have been identified, whereof 149 tephra layers have been correlated to its source volcanic system using geochemistry, stratigraphy and age. Fifteen layers have chemical composition of two affinities that possibly represent two very closely spaced eruptions. Thus, these 157 tephra layers are believed to represent 172 explosive eruptions. Nineteen tephra marker layers have been identified in the Lake Lögurinn record (G1922, A1875, V1477, V1410, H1636, K1625, Ö1362, G1354, K1262, V874, Hrafnkatla, Sn-1, Grákolla, HY, H3, H4, HÖ, LL1755 and Reitsvík-8 tephra markers). New potential tephra markers are the silicic Askja L (∼9400 cal BP), the low titanium basalt layers, LL 1774 (∼10.150 cal BP) and LL 1755 (∼9990 cal BP), assigned to Veidivötn-Bárdarbunga and the tephra layers, LL 1527.8 (∼7850 cal BP), LL 911.2 (∼2370 cal BP), LL 908.4 (∼2350 cal BP), LL 781.9 (∼1930 cal BP), LL 644.4 (∼1480 cal BP), not yet correlated to a source volcanic system. A silicic tephra marker layer, Reitsvík 8, correlated to the Fosen tephra in Norway has been identified in Lake Lögurinn. The Lake Lögurinn tephra record has been connected and integrated with the Icelandic terrestrial tephrochronology and stratigraphy through 102 tephra layers, the marine tephra stratigraphy through 39 layers and overseas through 9 tephra layers. This record is the first high-resolution tephra stratigraphical and chronological framework for the Holocene in eastern Iceland as well as the most detailed and continuous record, and has considerable potential to serve as a key section or a stratotype for the Holocene in eastern Iceland and the North Atlantic. Article in Journal/Newspaper Iceland North Atlantic Lund University Publications (LUP) Quaternary Science Reviews 150 234 249 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Holocene Iceland Lake Lögurinn Tephra markers Tephra stratigraphy Tephrochronology |
spellingShingle |
Geology Holocene Iceland Lake Lögurinn Tephra markers Tephra stratigraphy Tephrochronology Gudmundsdóttir, Esther Ruth Larsen, Gudrún Björck, Svante Ingólfsson, Ólafur Striberger, Johan A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
topic_facet |
Geology Holocene Iceland Lake Lögurinn Tephra markers Tephra stratigraphy Tephrochronology |
description |
A new and improved Holocene tephra stratigraphy and tephrochronological framework for eastern and northern Iceland is presented. Investigations of a sediment sequence from Lake Lögurinn have revealed a comprehensive tephra record spanning the last 10.200 years. A total of 157 tephra layers have been identified, whereof 149 tephra layers have been correlated to its source volcanic system using geochemistry, stratigraphy and age. Fifteen layers have chemical composition of two affinities that possibly represent two very closely spaced eruptions. Thus, these 157 tephra layers are believed to represent 172 explosive eruptions. Nineteen tephra marker layers have been identified in the Lake Lögurinn record (G1922, A1875, V1477, V1410, H1636, K1625, Ö1362, G1354, K1262, V874, Hrafnkatla, Sn-1, Grákolla, HY, H3, H4, HÖ, LL1755 and Reitsvík-8 tephra markers). New potential tephra markers are the silicic Askja L (∼9400 cal BP), the low titanium basalt layers, LL 1774 (∼10.150 cal BP) and LL 1755 (∼9990 cal BP), assigned to Veidivötn-Bárdarbunga and the tephra layers, LL 1527.8 (∼7850 cal BP), LL 911.2 (∼2370 cal BP), LL 908.4 (∼2350 cal BP), LL 781.9 (∼1930 cal BP), LL 644.4 (∼1480 cal BP), not yet correlated to a source volcanic system. A silicic tephra marker layer, Reitsvík 8, correlated to the Fosen tephra in Norway has been identified in Lake Lögurinn. The Lake Lögurinn tephra record has been connected and integrated with the Icelandic terrestrial tephrochronology and stratigraphy through 102 tephra layers, the marine tephra stratigraphy through 39 layers and overseas through 9 tephra layers. This record is the first high-resolution tephra stratigraphical and chronological framework for the Holocene in eastern Iceland as well as the most detailed and continuous record, and has considerable potential to serve as a key section or a stratotype for the Holocene in eastern Iceland and the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Gudmundsdóttir, Esther Ruth Larsen, Gudrún Björck, Svante Ingólfsson, Ólafur Striberger, Johan |
author_facet |
Gudmundsdóttir, Esther Ruth Larsen, Gudrún Björck, Svante Ingólfsson, Ólafur Striberger, Johan |
author_sort |
Gudmundsdóttir, Esther Ruth |
title |
A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
title_short |
A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
title_full |
A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
title_fullStr |
A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
title_full_unstemmed |
A new high-resolution Holocene tephra stratigraphy in eastern Iceland : Improving the Icelandic and North Atlantic tephrochronology |
title_sort |
new high-resolution holocene tephra stratigraphy in eastern iceland : improving the icelandic and north atlantic tephrochronology |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://lup.lub.lu.se/record/ba0159ea-d5bd-4663-b0ff-cf14893d7733 https://doi.org/10.1016/j.quascirev.2016.08.011 |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
Quaternary Science Reviews; 150, pp 234-249 (2016) ISSN: 0277-3791 |
op_relation |
https://lup.lub.lu.se/record/ba0159ea-d5bd-4663-b0ff-cf14893d7733 http://dx.doi.org/10.1016/j.quascirev.2016.08.011 scopus:84985018857 wos:000393845900016 |
op_doi |
https://doi.org/10.1016/j.quascirev.2016.08.011 |
container_title |
Quaternary Science Reviews |
container_volume |
150 |
container_start_page |
234 |
op_container_end_page |
249 |
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1799482252287016960 |