Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margins was performed to better constrain the regional chronostratigraphy and to gain insights into sediment magnetic properties at the North American Arctic margin during the Holocene and the preceding deglaciati...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2017
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.884466 https://doi.pangaea.de/10.1594/PANGAEA.884466 |
id |
ftdatacite:10.1594/pangaea.884466 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.884466 2023-05-15T14:59:25+02:00 Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas Deschamps, Charles-Edouard St-Onge, Guillaume Montero-Serrano, Jean-Carlos Polyak, Leonid 2017 application/zip https://dx.doi.org/10.1594/pangaea.884466 https://doi.pangaea.de/10.1594/PANGAEA.884466 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1111/bor.12296 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY article Supplementary Collection of Datasets Collection 2017 ftdatacite https://doi.org/10.1594/pangaea.884466 https://doi.org/10.1111/bor.12296 2022-02-09T13:17:17Z Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margins was performed to better constrain the regional chronostratigraphy and to gain insights into sediment magnetic properties at the North American Arctic margin during the Holocene and the preceding deglaciation. Palaeomagnetic analyses reveal that the sediments under study are characterized by low-coercivity ferrimagnetic minerals (magnetite), mostly in the pseudo-single domain grain-size range, and by a strong, stable, well-defined remanent magnetization (MAD <5°). Age models for these sediment cores were constrained by comparing their palaeomagnetic secular variations (inclination, declination and relative palaeointensity) with previously published and independently dated sedimentary marine records from the study area. The magnetostratigraphical age models were verified by AMS radiocarbon dating tie points, tephrochronology and 210Pb-based sedimentation rate estimate. The analysed cores 01JPC, 03PC and 02PC span c. 6000, 10 500 and 13 500 cal. a BP, respectively. The estimated sedimentation rates were stable and relatively high since the deglaciation in cores 01JPC (60 cm ka-1) and 03PC (40-70 cm ka-1). Core 02PC shows much lower Holocene sedimentation rates with a strong decrease after the deglaciation from ~60 to 10-20 cm ka-1. Overall, this study illustrates the usefulness of palaeomagnetism to improve the dating of late Quaternary sedimentary records in the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Chukchi DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Guillaume ENVELOPE(70.150,70.150,-49.350,-49.350) Boreas ENVELOPE(-3.933,-3.933,-71.300,-71.300) Montero ENVELOPE(-60.517,-60.517,-66.017,-66.017) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margins was performed to better constrain the regional chronostratigraphy and to gain insights into sediment magnetic properties at the North American Arctic margin during the Holocene and the preceding deglaciation. Palaeomagnetic analyses reveal that the sediments under study are characterized by low-coercivity ferrimagnetic minerals (magnetite), mostly in the pseudo-single domain grain-size range, and by a strong, stable, well-defined remanent magnetization (MAD <5°). Age models for these sediment cores were constrained by comparing their palaeomagnetic secular variations (inclination, declination and relative palaeointensity) with previously published and independently dated sedimentary marine records from the study area. The magnetostratigraphical age models were verified by AMS radiocarbon dating tie points, tephrochronology and 210Pb-based sedimentation rate estimate. The analysed cores 01JPC, 03PC and 02PC span c. 6000, 10 500 and 13 500 cal. a BP, respectively. The estimated sedimentation rates were stable and relatively high since the deglaciation in cores 01JPC (60 cm ka-1) and 03PC (40-70 cm ka-1). Core 02PC shows much lower Holocene sedimentation rates with a strong decrease after the deglaciation from ~60 to 10-20 cm ka-1. Overall, this study illustrates the usefulness of palaeomagnetism to improve the dating of late Quaternary sedimentary records in the Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Deschamps, Charles-Edouard St-Onge, Guillaume Montero-Serrano, Jean-Carlos Polyak, Leonid |
spellingShingle |
Deschamps, Charles-Edouard St-Onge, Guillaume Montero-Serrano, Jean-Carlos Polyak, Leonid Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
author_facet |
Deschamps, Charles-Edouard St-Onge, Guillaume Montero-Serrano, Jean-Carlos Polyak, Leonid |
author_sort |
Deschamps, Charles-Edouard |
title |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
title_short |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
title_full |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
title_fullStr |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
title_full_unstemmed |
Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margin, supplement to: Deschamps, Pierre; St-Onge, Guillaume; Montero-Serrano, Jean-Carlos; Polyak, Leonid (2017): Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation. Boreas |
title_sort |
palaeomagnetic investigation of three sediment cores from the chukchi and beaufort sea margin, supplement to: deschamps, pierre; st-onge, guillaume; montero-serrano, jean-carlos; polyak, leonid (2017): chronostratigraphy and spatial distribution of magnetic sediments in the chukchi and beaufort seas since the last deglaciation. boreas |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2017 |
url |
https://dx.doi.org/10.1594/pangaea.884466 https://doi.pangaea.de/10.1594/PANGAEA.884466 |
long_lat |
ENVELOPE(70.150,70.150,-49.350,-49.350) ENVELOPE(-3.933,-3.933,-71.300,-71.300) ENVELOPE(-60.517,-60.517,-66.017,-66.017) |
geographic |
Arctic Arctic Ocean Guillaume Boreas Montero |
geographic_facet |
Arctic Arctic Ocean Guillaume Boreas Montero |
genre |
Arctic Arctic Ocean Beaufort Sea Chukchi |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Chukchi |
op_relation |
https://dx.doi.org/10.1111/bor.12296 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.884466 https://doi.org/10.1111/bor.12296 |
_version_ |
1766331528110931968 |