Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores
ABSTRACT The physical and magnetic properties of four long sediment cores (HU2008‐029‐034PC, ‐038PC, ‐042PC and ‐070PC) sampled in Northern (Smith Sound and Jones Sound) and Eastern (Disko Bugt) Baffin Bay were analysed to reconstruct the Holocene environmental changes in Baffin Bay. Radiocarbon dat...
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crwiley:10.1002/jqs.2674 2024-06-02T08:03:48+00:00 Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores ST‐ONGE, MARIE‐PIER ST‐ONGE, GUILLAUME Natural Sciences and Engineering Research Council of Canada 2013 http://dx.doi.org/10.1002/jqs.2674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2674 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2674 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 29, issue 1, page 41-56 ISSN 0267-8179 1099-1417 journal-article 2013 crwiley https://doi.org/10.1002/jqs.2674 2024-05-03T11:56:15Z ABSTRACT The physical and magnetic properties of four long sediment cores (HU2008‐029‐034PC, ‐038PC, ‐042PC and ‐070PC) sampled in Northern (Smith Sound and Jones Sound) and Eastern (Disko Bugt) Baffin Bay were analysed to reconstruct the Holocene environmental changes in Baffin Bay. Radiocarbon dating of each core revealed sedimentation rates of up to 136 cm ka −1 . Except for specific intervals, magnetic properties and ratios reveal that the magnetic remanence is mostly carried by magnetite and that changes in magnetic grain size and concentration are indicative of environmental variations associated with ice‐rafted debris, sea‐ice, meltwater pulses or terrigenous inputs. These variations indicate that all four cores, which cover a period from 12 360 cal a BP to the present, have sedimentary facies that correspond to the major climatic changes of the Holocene: deglaciation and the climatic optimum. In addition, two cores (HU2008‐029‐038PC and ‐070PC) present the signal of two climatic events with a local influence during the Neoglacial period. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Disko bugt Jones Sound Sea ice Smith sound Wiley Online Library Baffin Bay Jones Sound ENVELOPE(-86.000,-86.000,76.002,76.002) Smith Sound ENVELOPE(-73.996,-73.996,78.419,78.419) Journal of Quaternary Science 29 1 41 56 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT The physical and magnetic properties of four long sediment cores (HU2008‐029‐034PC, ‐038PC, ‐042PC and ‐070PC) sampled in Northern (Smith Sound and Jones Sound) and Eastern (Disko Bugt) Baffin Bay were analysed to reconstruct the Holocene environmental changes in Baffin Bay. Radiocarbon dating of each core revealed sedimentation rates of up to 136 cm ka −1 . Except for specific intervals, magnetic properties and ratios reveal that the magnetic remanence is mostly carried by magnetite and that changes in magnetic grain size and concentration are indicative of environmental variations associated with ice‐rafted debris, sea‐ice, meltwater pulses or terrigenous inputs. These variations indicate that all four cores, which cover a period from 12 360 cal a BP to the present, have sedimentary facies that correspond to the major climatic changes of the Holocene: deglaciation and the climatic optimum. In addition, two cores (HU2008‐029‐038PC and ‐070PC) present the signal of two climatic events with a local influence during the Neoglacial period. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
ST‐ONGE, MARIE‐PIER ST‐ONGE, GUILLAUME |
spellingShingle |
ST‐ONGE, MARIE‐PIER ST‐ONGE, GUILLAUME Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
author_facet |
ST‐ONGE, MARIE‐PIER ST‐ONGE, GUILLAUME |
author_sort |
ST‐ONGE, MARIE‐PIER |
title |
Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
title_short |
Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
title_full |
Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
title_fullStr |
Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
title_full_unstemmed |
Environmental changes in Baffin Bay during the Holocene based on the physical and magnetic properties of sediment cores |
title_sort |
environmental changes in baffin bay during the holocene based on the physical and magnetic properties of sediment cores |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1002/jqs.2674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2674 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2674 |
long_lat |
ENVELOPE(-86.000,-86.000,76.002,76.002) ENVELOPE(-73.996,-73.996,78.419,78.419) |
geographic |
Baffin Bay Jones Sound Smith Sound |
geographic_facet |
Baffin Bay Jones Sound Smith Sound |
genre |
Baffin Bay Baffin Bay Baffin Disko bugt Jones Sound Sea ice Smith sound |
genre_facet |
Baffin Bay Baffin Bay Baffin Disko bugt Jones Sound Sea ice Smith sound |
op_source |
Journal of Quaternary Science volume 29, issue 1, page 41-56 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2674 |
container_title |
Journal of Quaternary Science |
container_volume |
29 |
container_issue |
1 |
container_start_page |
41 |
op_container_end_page |
56 |
_version_ |
1800748420529389568 |