Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation
ABSTRACT A tephra layer with normal grading in the sub‐bottom depth interval 119–122 cm in marine core SO202‐27‐6 was collected on Patton Seamount in the northeast North Pacific Ocean. Based on the geochemistry of volcanic glass shards determined by a wavelength dispersive electron probe micro‐analy...
Published in: | Journal of Quaternary Science |
---|---|
Main Author: | |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.3176 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3176 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3176 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3176 |
id |
crwiley:10.1002/jqs.3176 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.3176 2024-06-02T08:05:43+00:00 Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation Aoki, Kaori Bundesministerium für Bildung und Forschung 2019 http://dx.doi.org/10.1002/jqs.3176 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3176 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3176 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3176 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 35, issue 1-2, page 93-101 ISSN 0267-8179 1099-1417 journal-article 2019 crwiley https://doi.org/10.1002/jqs.3176 2024-05-03T10:47:58Z ABSTRACT A tephra layer with normal grading in the sub‐bottom depth interval 119–122 cm in marine core SO202‐27‐6 was collected on Patton Seamount in the northeast North Pacific Ocean. Based on the geochemistry of volcanic glass shards determined by a wavelength dispersive electron probe micro‐analyser and an X‐ray fluorescence analyser, this layer is correlated to the Dawson tephra, a widespread late Pleistocene time marker tephra in Alaska and the Yukon. The age of the Dawson tephra in the core is 29.03 ± 0.178 ka (1 sigma) based on a published age model. The Dawson tephra is revealed to have been deposited in the transition from marine isotope stage 3 to 2, i.e. the last stage of Heinrich Stadial 3 derived from the ice‐rafted debris signal. According to the correlation between Greenland (NGRIP ice core) and this core, the Dawson tephra occupies the record immediately before inter stadial 4 in the δ 18 O stratigraphy of NGRIP. The Dawson tephra on Patton Seamount includes lithic fragments, which suggests that it was deposited not only by fall‐out but also in part via another mechanism, such as icebergs from the Cordilleran ice sheet or seasonal sea ice. Article in Journal/Newspaper Dawson Greenland ice core Ice Sheet NGRIP Sea ice Alaska Yukon Wiley Online Library Greenland Pacific Patton Seamount ENVELOPE(-150.448,-150.448,54.589,54.589) Yukon Journal of Quaternary Science 35 1-2 93 101 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT A tephra layer with normal grading in the sub‐bottom depth interval 119–122 cm in marine core SO202‐27‐6 was collected on Patton Seamount in the northeast North Pacific Ocean. Based on the geochemistry of volcanic glass shards determined by a wavelength dispersive electron probe micro‐analyser and an X‐ray fluorescence analyser, this layer is correlated to the Dawson tephra, a widespread late Pleistocene time marker tephra in Alaska and the Yukon. The age of the Dawson tephra in the core is 29.03 ± 0.178 ka (1 sigma) based on a published age model. The Dawson tephra is revealed to have been deposited in the transition from marine isotope stage 3 to 2, i.e. the last stage of Heinrich Stadial 3 derived from the ice‐rafted debris signal. According to the correlation between Greenland (NGRIP ice core) and this core, the Dawson tephra occupies the record immediately before inter stadial 4 in the δ 18 O stratigraphy of NGRIP. The Dawson tephra on Patton Seamount includes lithic fragments, which suggests that it was deposited not only by fall‐out but also in part via another mechanism, such as icebergs from the Cordilleran ice sheet or seasonal sea ice. |
author2 |
Bundesministerium für Bildung und Forschung |
format |
Article in Journal/Newspaper |
author |
Aoki, Kaori |
spellingShingle |
Aoki, Kaori Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
author_facet |
Aoki, Kaori |
author_sort |
Aoki, Kaori |
title |
Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
title_short |
Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
title_full |
Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
title_fullStr |
Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
title_full_unstemmed |
Dawson tephra, a widespread 29‐ka marker bed, in a marine core from Patton Seamount off the Alaska Peninsula and its potential marine–terrestrial correlation |
title_sort |
dawson tephra, a widespread 29‐ka marker bed, in a marine core from patton seamount off the alaska peninsula and its potential marine–terrestrial correlation |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/jqs.3176 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3176 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3176 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3176 |
long_lat |
ENVELOPE(-150.448,-150.448,54.589,54.589) |
geographic |
Greenland Pacific Patton Seamount Yukon |
geographic_facet |
Greenland Pacific Patton Seamount Yukon |
genre |
Dawson Greenland ice core Ice Sheet NGRIP Sea ice Alaska Yukon |
genre_facet |
Dawson Greenland ice core Ice Sheet NGRIP Sea ice Alaska Yukon |
op_source |
Journal of Quaternary Science volume 35, issue 1-2, page 93-101 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.3176 |
container_title |
Journal of Quaternary Science |
container_volume |
35 |
container_issue |
1-2 |
container_start_page |
93 |
op_container_end_page |
101 |
_version_ |
1800750585817858048 |