Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC
Two relative paleointensity (RPI) proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076. The RPI proxies were determined from stepwise alternating field demagnetization applied to the natural remanent magnetization (NRM) and to the anhysteretic remanent magnetization (ARM...
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Format: | Dataset |
Language: | English |
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PANGAEA
2021
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.926798 https://doi.org/10.1594/PANGAEA.926798 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.926798 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Calypso Square Core System CASQS Iceland Basin magnetic excursion IMAGES XV - Pachiderme Laschamp magnetic excursion Marion Dufresne (1995) MD07-3076 MD07-3076Q MD159 Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Quaternary see Channell et al. (2017) see description in data abstract South Atlantic |
spellingShingle |
AGE Calypso Square Core System CASQS Iceland Basin magnetic excursion IMAGES XV - Pachiderme Laschamp magnetic excursion Marion Dufresne (1995) MD07-3076 MD07-3076Q MD159 Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Quaternary see Channell et al. (2017) see description in data abstract South Atlantic Channell, James E T Vázquez Riveiros, Natalia Gottschalk, Julia Waelbroeck, Claire Skinner, Luke C Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
topic_facet |
AGE Calypso Square Core System CASQS Iceland Basin magnetic excursion IMAGES XV - Pachiderme Laschamp magnetic excursion Marion Dufresne (1995) MD07-3076 MD07-3076Q MD159 Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Quaternary see Channell et al. (2017) see description in data abstract South Atlantic |
description |
Two relative paleointensity (RPI) proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076. The RPI proxies were determined from stepwise alternating field demagnetization applied to the natural remanent magnetization (NRM) and to the anhysteretic remanent magnetization (ARM) (see Channell et al., 2017). Age models for records of the Laschamp and Iceland Basin excursions were derived from radiocarbon dates, and from matching sea-surface temperature records to Antarctic (EPICA) air-temperature records from ice cores. The onset of the Laschamp excursion occurred during Antarctic Isotopic Maximum (AIM) 10, consistent with its occurrence during Greenland Interstadial 10. The end of the Laschamp excursion occurred prior to AIM 9 in Greenland Stadial 10. The age model is supported by synchroneity of directional and relative paleointensity manifestations of the Laschamp excursion in the marine core with peaks in EPICA10Be and nitrate flux. The Iceland Basin excursion is synchronous with the final phase of the transition from marine isotope stage (MIS) 7a to MIS 6e as recorded in the EPICA δD record. The onset of the Laschamp and Iceland Basin excursions, defined here by component inclinations >-40°, occurred at 41.4 ka and 190.0 ka, and durations are ~1 kyr and ~ 3.5 kyr, respectively, although these estimates depend on the criteria used to define the directional excursions. By comparison with Laschamp and Iceland Basin excursion records from the North Atlantic Ocean, the two excursions are synchronous at centennial timescales between the two hemispheres, based on synchronization of the GICC05 and AICC2012 age models for Greenland and Antarctic ice cores. |
format |
Dataset |
author |
Channell, James E T Vázquez Riveiros, Natalia Gottschalk, Julia Waelbroeck, Claire Skinner, Luke C |
author_facet |
Channell, James E T Vázquez Riveiros, Natalia Gottschalk, Julia Waelbroeck, Claire Skinner, Luke C |
author_sort |
Channell, James E T |
title |
Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
title_short |
Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
title_full |
Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
title_fullStr |
Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
title_full_unstemmed |
Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC |
title_sort |
age versus two relative paleointensity proxies (slopes of nrm/arm and nrm/irm) for u-channel samples from core md07-3076 recovered during marion dufresne cruise vt90/souc |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.926798 https://doi.org/10.1594/PANGAEA.926798 |
op_coverage |
LATITUDE: -44.153330 * LONGITUDE: -14.228170 * MINIMUM ELEVATION: -3770.0 m * MAXIMUM ELEVATION: -3770.0 m |
long_lat |
ENVELOPE(-14.228170,-14.228170,-44.153330,-44.153330) |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic EPICA Greenland Iceland North Atlantic |
genre_facet |
Antarc* Antarctic EPICA Greenland Iceland North Atlantic |
op_relation |
Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2017): Age and duration of Laschamp and Iceland Basin geomagnetic excursions in the South Atlantic Ocean. Quaternary Science Reviews, 167, 1-13, https://doi.org/10.1016/j.quascirev.2017.04.020 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of discrete samples recording the Iceland Basin excursion in Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926787 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of discrete samples recording the Laschamp excursion in Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926797 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of u-channel samples recording the Iceland Basin excursion in Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926795 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of u-channel samples recording the Laschamp excursion in Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926796 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926799 https://doi.pangaea.de/10.1594/PANGAEA.926798 https://doi.org/10.1594/PANGAEA.926798 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.926798 https://doi.org/10.1016/j.quascirev.2017.04.020 https://doi.org/10.1594/PANGAEA.926787 https://doi.org/10.1594/PANGAEA.926797 https://doi.org/10.1594/PANGAEA.926795 https://doi.org/10.1594/PANGAEA.926796 |
_version_ |
1766276534974283776 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.926798 2023-05-15T14:04:58+02:00 Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC Channell, James E T Vázquez Riveiros, Natalia Gottschalk, Julia Waelbroeck, Claire Skinner, Luke C LATITUDE: -44.153330 * LONGITUDE: -14.228170 * MINIMUM ELEVATION: -3770.0 m * MAXIMUM ELEVATION: -3770.0 m 2021-01-20 text/tab-separated-values, 1558 data points https://doi.pangaea.de/10.1594/PANGAEA.926798 https://doi.org/10.1594/PANGAEA.926798 en eng PANGAEA Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2017): Age and duration of Laschamp and Iceland Basin geomagnetic excursions in the South Atlantic Ocean. Quaternary Science Reviews, 167, 1-13, https://doi.org/10.1016/j.quascirev.2017.04.020 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of discrete samples recording the Iceland Basin excursion in Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926787 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of discrete samples recording the Laschamp excursion in Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926797 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of u-channel samples recording the Iceland Basin excursion in Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926795 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus component declination and inclination of natural remanent magnetization (NRM) of u-channel samples recording the Laschamp excursion in Core MD07-3076 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926796 Channell, James E T; Vázquez Riveiros, Natalia; Gottschalk, Julia; Waelbroeck, Claire; Skinner, Luke C (2021): Age versus two relative paleointensity proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3077 recovered during Marion Dufresne cruise VT90/SOUC. PANGAEA, https://doi.org/10.1594/PANGAEA.926799 https://doi.pangaea.de/10.1594/PANGAEA.926798 https://doi.org/10.1594/PANGAEA.926798 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY AGE Calypso Square Core System CASQS Iceland Basin magnetic excursion IMAGES XV - Pachiderme Laschamp magnetic excursion Marion Dufresne (1995) MD07-3076 MD07-3076Q MD159 Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Quaternary see Channell et al. (2017) see description in data abstract South Atlantic Dataset 2021 ftpangaea https://doi.org/10.1594/PANGAEA.926798 https://doi.org/10.1016/j.quascirev.2017.04.020 https://doi.org/10.1594/PANGAEA.926787 https://doi.org/10.1594/PANGAEA.926797 https://doi.org/10.1594/PANGAEA.926795 https://doi.org/10.1594/PANGAEA.926796 2023-01-20T09:14:19Z Two relative paleointensity (RPI) proxies (slopes of NRM/ARM and NRM/IRM) for u-channel samples from Core MD07-3076. The RPI proxies were determined from stepwise alternating field demagnetization applied to the natural remanent magnetization (NRM) and to the anhysteretic remanent magnetization (ARM) (see Channell et al., 2017). Age models for records of the Laschamp and Iceland Basin excursions were derived from radiocarbon dates, and from matching sea-surface temperature records to Antarctic (EPICA) air-temperature records from ice cores. The onset of the Laschamp excursion occurred during Antarctic Isotopic Maximum (AIM) 10, consistent with its occurrence during Greenland Interstadial 10. The end of the Laschamp excursion occurred prior to AIM 9 in Greenland Stadial 10. The age model is supported by synchroneity of directional and relative paleointensity manifestations of the Laschamp excursion in the marine core with peaks in EPICA10Be and nitrate flux. The Iceland Basin excursion is synchronous with the final phase of the transition from marine isotope stage (MIS) 7a to MIS 6e as recorded in the EPICA δD record. The onset of the Laschamp and Iceland Basin excursions, defined here by component inclinations >-40°, occurred at 41.4 ka and 190.0 ka, and durations are ~1 kyr and ~ 3.5 kyr, respectively, although these estimates depend on the criteria used to define the directional excursions. By comparison with Laschamp and Iceland Basin excursion records from the North Atlantic Ocean, the two excursions are synchronous at centennial timescales between the two hemispheres, based on synchronization of the GICC05 and AICC2012 age models for Greenland and Antarctic ice cores. Dataset Antarc* Antarctic EPICA Greenland Iceland North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Greenland ENVELOPE(-14.228170,-14.228170,-44.153330,-44.153330) |