Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period
Five basaltic tephra horizons have been identified in the NGRIP ice-core during the last glacial period. Geochemical analyses indicate that these tephras are of Icelandic origin with one horizon identified as the Faroe Marine Ash Zone III (FMAZ III) — an important marker horizon in several marine re...
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/97539/ https://doi.org/10.1016/j.epsl.2010.03.004 |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:97539 2023-05-15T16:10:55+02:00 Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period Davies, S.M. Wastegård, S. Abbott, Peter Barbante, C. Bigler, M. Johnsen, S.J. Rasmussen, T.L. Steffensen, J.P. Svensson, A. 2010-05-15 https://orca.cardiff.ac.uk/id/eprint/97539/ https://doi.org/10.1016/j.epsl.2010.03.004 unknown Elsevier Davies, S.M., Wastegård, S., Abbott, Peter https://orca.cardiff.ac.uk/view/cardiffauthors/A2268178E.html orcid:0000-0002-6347-9499 orcid:0000-0002-6347-9499, Barbante, C., Bigler, M., Johnsen, S.J., Rasmussen, T.L., Steffensen, J.P. and Svensson, A. 2010. Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period. Earth and Planetary Science Letters 294 (1-2) , pp. 69-79. 10.1016/j.epsl.2010.03.004 https://doi.org/10.1016/j.epsl.2010.03.004 doi:10.1016/j.epsl.2010.03.004 Q Science (General) Article PeerReviewed 2010 ftunivcardiff https://doi.org/10.1016/j.epsl.2010.03.004 2022-11-03T23:41:32Z Five basaltic tephra horizons have been identified in the NGRIP ice-core during the last glacial period. Geochemical analyses indicate that these tephras are of Icelandic origin with one horizon identified as the Faroe Marine Ash Zone III (FMAZ III) — an important marker horizon in several marine records within the Faroe Islands margin. The FMAZ III is a few millimetres thick and is constrained to 38,122 ± 723 yr b2k (before year AD 2000) according to the Greenland Ice Core Chronology (GICC05). This event falls directly at the thermal peak of Greenland Interstadial 8 (GI-8) and a marine-ice correlation, based on the position of this tephra, suggests a close coupling of the marine and atmospheric systems at this time. The remaining tephras originate from the Eastern Volcanic Zone with the Katla volcanic system pinpointed as the dominant source. These are thought to represent previously unknown volcanic events which add considerably to our knowledge of Icelandic volcanism during this period. Independent ages are assigned to these events and together with major element characterisation, form the backbone of the tephrochronology framework presented here. Despite the identification of these tephras, this study also demonstrates that the sulphate record may not always act as a suitable proxy for the identification of tephra horizons in ice-core records Article in Journal/Newspaper Faroe Islands Greenland Greenland ice core ice core Katla NGRIP North Atlantic Cardiff University: ORCA (Online Research @ Cardiff) Faroe Islands Greenland Katla ENVELOPE(-19.062,-19.062,63.631,63.631) Earth and Planetary Science Letters 294 1-2 69 79 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
topic |
Q Science (General) |
spellingShingle |
Q Science (General) Davies, S.M. Wastegård, S. Abbott, Peter Barbante, C. Bigler, M. Johnsen, S.J. Rasmussen, T.L. Steffensen, J.P. Svensson, A. Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
topic_facet |
Q Science (General) |
description |
Five basaltic tephra horizons have been identified in the NGRIP ice-core during the last glacial period. Geochemical analyses indicate that these tephras are of Icelandic origin with one horizon identified as the Faroe Marine Ash Zone III (FMAZ III) — an important marker horizon in several marine records within the Faroe Islands margin. The FMAZ III is a few millimetres thick and is constrained to 38,122 ± 723 yr b2k (before year AD 2000) according to the Greenland Ice Core Chronology (GICC05). This event falls directly at the thermal peak of Greenland Interstadial 8 (GI-8) and a marine-ice correlation, based on the position of this tephra, suggests a close coupling of the marine and atmospheric systems at this time. The remaining tephras originate from the Eastern Volcanic Zone with the Katla volcanic system pinpointed as the dominant source. These are thought to represent previously unknown volcanic events which add considerably to our knowledge of Icelandic volcanism during this period. Independent ages are assigned to these events and together with major element characterisation, form the backbone of the tephrochronology framework presented here. Despite the identification of these tephras, this study also demonstrates that the sulphate record may not always act as a suitable proxy for the identification of tephra horizons in ice-core records |
format |
Article in Journal/Newspaper |
author |
Davies, S.M. Wastegård, S. Abbott, Peter Barbante, C. Bigler, M. Johnsen, S.J. Rasmussen, T.L. Steffensen, J.P. Svensson, A. |
author_facet |
Davies, S.M. Wastegård, S. Abbott, Peter Barbante, C. Bigler, M. Johnsen, S.J. Rasmussen, T.L. Steffensen, J.P. Svensson, A. |
author_sort |
Davies, S.M. |
title |
Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
title_short |
Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
title_full |
Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
title_fullStr |
Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
title_full_unstemmed |
Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period |
title_sort |
tracing volcanic events in the ngrip ice-core and synchronising north atlantic marine records during the last glacial period |
publisher |
Elsevier |
publishDate |
2010 |
url |
https://orca.cardiff.ac.uk/id/eprint/97539/ https://doi.org/10.1016/j.epsl.2010.03.004 |
long_lat |
ENVELOPE(-19.062,-19.062,63.631,63.631) |
geographic |
Faroe Islands Greenland Katla |
geographic_facet |
Faroe Islands Greenland Katla |
genre |
Faroe Islands Greenland Greenland ice core ice core Katla NGRIP North Atlantic |
genre_facet |
Faroe Islands Greenland Greenland ice core ice core Katla NGRIP North Atlantic |
op_relation |
Davies, S.M., Wastegård, S., Abbott, Peter https://orca.cardiff.ac.uk/view/cardiffauthors/A2268178E.html orcid:0000-0002-6347-9499 orcid:0000-0002-6347-9499, Barbante, C., Bigler, M., Johnsen, S.J., Rasmussen, T.L., Steffensen, J.P. and Svensson, A. 2010. Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period. Earth and Planetary Science Letters 294 (1-2) , pp. 69-79. 10.1016/j.epsl.2010.03.004 https://doi.org/10.1016/j.epsl.2010.03.004 doi:10.1016/j.epsl.2010.03.004 |
op_doi |
https://doi.org/10.1016/j.epsl.2010.03.004 |
container_title |
Earth and Planetary Science Letters |
container_volume |
294 |
container_issue |
1-2 |
container_start_page |
69 |
op_container_end_page |
79 |
_version_ |
1765996049248288768 |