Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen
Abstract Wavelength dispersive (WDS) electron microprobe analysis of glass shards recovered from Pleistocene sediments at Ocean Drilling Program Hole 907A (Leg 151) has been used to define key Pleistocene tephrochronostratigraphical markers for the Greenland–Iceland–Norwegian (GIN) seas. Two tephras...
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crwiley:10.1002/jqs.839 2024-09-15T18:09:43+00:00 Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen Hunt, John B. Royal Geographical Society Institute of British Geographics 2004 http://dx.doi.org/10.1002/jqs.839 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.839 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.839 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 19, issue 2, page 121-136 ISSN 0267-8179 1099-1417 journal-article 2004 crwiley https://doi.org/10.1002/jqs.839 2024-07-25T04:22:31Z Abstract Wavelength dispersive (WDS) electron microprobe analysis of glass shards recovered from Pleistocene sediments at Ocean Drilling Program Hole 907A (Leg 151) has been used to define key Pleistocene tephrochronostratigraphical markers for the Greenland–Iceland–Norwegian (GIN) seas. Two tephras have particularly distinctive geochemistry, making them useful as marker horizons in cores from the Iceland Plateau, and potentially further afield. These tephras enable the construction of a sedimentation rate history that indicates reduced sediment deposition in the mid‐Brunhes magnetochron, possibly through reduced carbonate preservation. No significant geochemical weathering of the Iceland Plateau tephra sequence has occurred. The geochemical signature of a key tephra, dated to 577–640 ka, can be attributed to the Jan Mayen rock suite, demonstrating unambiguously the explosive potential of Jan Mayen and its potential to contribute to the North Atlantic tephra record. Copyright © 2004 John Wiley & Sons, Ltd. Article in Journal/Newspaper Greenland Iceland Jan Mayen North Atlantic Wiley Online Library Journal of Quaternary Science 19 2 121 136 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Wavelength dispersive (WDS) electron microprobe analysis of glass shards recovered from Pleistocene sediments at Ocean Drilling Program Hole 907A (Leg 151) has been used to define key Pleistocene tephrochronostratigraphical markers for the Greenland–Iceland–Norwegian (GIN) seas. Two tephras have particularly distinctive geochemistry, making them useful as marker horizons in cores from the Iceland Plateau, and potentially further afield. These tephras enable the construction of a sedimentation rate history that indicates reduced sediment deposition in the mid‐Brunhes magnetochron, possibly through reduced carbonate preservation. No significant geochemical weathering of the Iceland Plateau tephra sequence has occurred. The geochemical signature of a key tephra, dated to 577–640 ka, can be attributed to the Jan Mayen rock suite, demonstrating unambiguously the explosive potential of Jan Mayen and its potential to contribute to the North Atlantic tephra record. Copyright © 2004 John Wiley & Sons, Ltd. |
author2 |
Royal Geographical Society Institute of British Geographics |
format |
Article in Journal/Newspaper |
author |
Hunt, John B. |
spellingShingle |
Hunt, John B. Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
author_facet |
Hunt, John B. |
author_sort |
Hunt, John B. |
title |
Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
title_short |
Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
title_full |
Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
title_fullStr |
Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
title_full_unstemmed |
Tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at Jan Mayen |
title_sort |
tephrostratigraphical evidence for the timing of pleistocene explosive volcanism at jan mayen |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1002/jqs.839 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.839 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.839 |
genre |
Greenland Iceland Jan Mayen North Atlantic |
genre_facet |
Greenland Iceland Jan Mayen North Atlantic |
op_source |
Journal of Quaternary Science volume 19, issue 2, page 121-136 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.839 |
container_title |
Journal of Quaternary Science |
container_volume |
19 |
container_issue |
2 |
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121 |
op_container_end_page |
136 |
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1810447304084160512 |