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
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 a...
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ftarchimer:oai:archimer.ifremer.fr:71056 2023-05-15T16:00:21+02:00 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 2020-01 application/pdf https://archimer.ifremer.fr/doc/00598/71056/69371.pdf https://archimer.ifremer.fr/doc/00598/71056/69372.xlsx https://doi.org/10.1002/jqs.3176 https://archimer.ifremer.fr/doc/00598/71056/ eng eng Wiley https://archimer.ifremer.fr/doc/00598/71056/69371.pdf https://archimer.ifremer.fr/doc/00598/71056/69372.xlsx doi:10.1002/jqs.3176 https://archimer.ifremer.fr/doc/00598/71056/ info:eu-repo/semantics/openAccess restricted use Journal Of Quaternary Science (0267-8179) (Wiley), 2020-01 , Vol. 35 , N. 1-2 , P. 93-101 Dawson tephra Heinrich Stadial late Pleistocene marine sediment MIS3 2 text Publication info:eu-repo/semantics/article 2020 ftarchimer https://doi.org/10.1002/jqs.3176 2021-09-23T20:34:09Z 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 δ18O 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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) 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 |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Dawson tephra Heinrich Stadial late Pleistocene marine sediment MIS3 2 |
spellingShingle |
Dawson tephra Heinrich Stadial late Pleistocene marine sediment MIS3 2 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 |
topic_facet |
Dawson tephra Heinrich Stadial late Pleistocene marine sediment MIS3 2 |
description |
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 δ18O 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. |
format |
Article in Journal/Newspaper |
author |
Aoki, Kaori |
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 |
2020 |
url |
https://archimer.ifremer.fr/doc/00598/71056/69371.pdf https://archimer.ifremer.fr/doc/00598/71056/69372.xlsx https://doi.org/10.1002/jqs.3176 https://archimer.ifremer.fr/doc/00598/71056/ |
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 (0267-8179) (Wiley), 2020-01 , Vol. 35 , N. 1-2 , P. 93-101 |
op_relation |
https://archimer.ifremer.fr/doc/00598/71056/69371.pdf https://archimer.ifremer.fr/doc/00598/71056/69372.xlsx doi:10.1002/jqs.3176 https://archimer.ifremer.fr/doc/00598/71056/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
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_ |
1766396339234537472 |