Tephra horizons identified in the western North Atlantic and Nordic Seas during the Last Glacial Period: Extending the marine tephra framework

Rutledal, Sunniva; Berben, Sarah M P; Dokken, Trond; Bilt, Willem van der; Cederstrøm, Jan Magne; Jansen, Eystein

doi:10.1016/j.quascirev.2020.106247

Cited by 14 publications

(21 citation statements)

References 49 publications

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“…Lastly, it is apparent that Hekla was not particularly active prior to the widespread eruption known as FMAZ II dated to around 26.7 ka b2k (e.g. Haflidason et al ., 2000; Wastegård et al ., 2006; Davies et al ., 2008; Griggs et al ., 2014; Rutledal et al ., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…*Based on results in Rutledal et al . (2020). [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the identified rhyolitic component of Vedde Ash [12 171 ± 57 b2k (Svensson et al ., 2008)] (this study, Supporting information Fig. S1) and NAAZ II (II‐RHY‐1) [55 380 ± 1184 b2k (Svensson et al ., 2008)] (Griem et al ., 2019; Rutledal et al ., 2020) were used as independent time‐markers. In total, the chronology is based on 10 tuning points, two accerlator mass spectrometry (AMS) 14 C dates and two tephra markers (Supporting Information Table S1).…”

Section: Methodsmentioning

confidence: 99%

“…WVZ = Western Volcanic Zone, RVB = Reykjanes Volcanic Belt. *Based on results in Rutledal et al (2020). [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Supporting Informationmentioning

confidence: 99%

“…The most pronounced tephra deposits are recorded at 130–130.5 and 474–474.5 cm. The 130–130.5 cm layer represents the rhyolitic Vedde Ash tephra and the 474–474.5 cm layer NAAZ II (II‐RHY‐1) (Griem et al ., 2019; Rutledal et al ., 2020) (Supporting Information Fig. S1).…”

Section: Tephrostratigraphymentioning

confidence: 99%

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A continuous tephrostratigraphic record from the Labrador Sea spanning the last 65 ka

Rutledal

Haflidason

Berben

et al. 2020

J Quaternary Science

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Volcanic ash preserved in marine sediment sequences is key for independent synchronization of palaeoclimate records within and across different climate archives. Here we present a continuous tephrostratigraphic record from the Labrador Sea, spanning the last 65–5 ka, an area and time period that has not been investigated in detail within the established North Atlantic tephra framework. We investigated marine sediment core GS16‐204‐22CC for increased tephra occurrences and geochemically analysed the major element composition of tephra shards to identify their source volcano(es). In total we observed eight tephra zones, of which five concentration peaks show isochronous features that can be used as independent tie‐points in future studies. The main transport mechanism of tephra shards to the site was near‐instantaneous deposition by drifting of sea ice along the East Greenland Current. Our results show that the Icelandic Veidivötn volcanic system was the dominant source of tephra material, especially between late Marine Isotope Stage (MIS) 4 and early MIS 3. The Veidivötn system generated volcanic eruptions in cycles of ca. 3–5 ka. We speculate that the quantity of tephra delivered to the Labrador Sea was a result of variable Icelandic ice volume and/or changes in the transportation pathway towards the Labrador Sea.

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Section: Discussionmentioning

confidence: 99%

“…*Based on results in Rutledal et al . (2020). [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…WVZ = Western Volcanic Zone, RVB = Reykjanes Volcanic Belt. *Based on results in Rutledal et al (2020). [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Supporting Informationmentioning

confidence: 99%

Section: Tephrostratigraphymentioning

confidence: 99%

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A continuous tephrostratigraphic record from the Labrador Sea spanning the last 65 ka

Rutledal

Haflidason

Berben

et al. 2020

J Quaternary Science

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Paleomagnetism and rock magnetism as tools for volcanology

et al. 2022

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Paleomagnetic and rock magnetic methods for studying volcanoes and their products have been developed since the second half of the twentieth century. These methods have been used to find tephra in sediment cores, date volcanic eruptions and deposits, determine emplacement temperatures of volcanic deposits, and estimate flow directions of dikes, lava flows, and pyroclastic flow deposits. In the twenty-first century, these techniques have steadily improved and expanded, resulting in more probing and precise studies of volcanoes using paleomagnetism. We believe that continual improvement of existing techniques and the increased awareness and interest in paleomagnetic methods should allow more studies to enhance the understanding of volcanic processes.

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Applications of paleomagnetism and rock magnetism in understanding volcanic processes and timescales: perspectives to Korean volcanological research

Ahn,

2024

Geosci J

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Tephra horizons identified in the western North Atlantic and Nordic Seas during the Last Glacial Period: Extending the marine tephra framework

Cited by 14 publications

References 49 publications

A continuous tephrostratigraphic record from the Labrador Sea spanning the last 65 ka

A continuous tephrostratigraphic record from the Labrador Sea spanning the last 65 ka

Paleomagnetism and rock magnetism as tools for volcanology

Applications of paleomagnetism and rock magnetism in understanding volcanic processes and timescales: perspectives to Korean volcanological research

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