Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197
A new high-resolution magnetostratigraphic record from the eastern Arctic Ocean has yielded further evidence for the existence of the Laschamp excursion (37–35 ka), the Mono Lake excursion (27–25.5 ka) and possibly another very short excursion (22 ka) inferred from steep negative inclinations. Ages...
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ftdatacite:10.1594/pangaea.671685 2023-05-15T14:54:13+02:00 Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 Nowaczyk, Norbert R Knies, Jochen 2000 application/zip https://dx.doi.org/10.1594/pangaea.671685 https://doi.pangaea.de/10.1594/PANGAEA.671685 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1046/j.1365-246x.2000.00001.x Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Gravity corer Kiel type ARK-VIII/2 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Quaternary Environment of the Eurasian North QUEEN Supplementary Collection of Datasets Collection article 2000 ftdatacite https://doi.org/10.1594/pangaea.671685 https://doi.org/10.1046/j.1365-246x.2000.00001.x 2022-02-08T16:24:46Z A new high-resolution magnetostratigraphic record from the eastern Arctic Ocean has yielded further evidence for the existence of the Laschamp excursion (37–35 ka), the Mono Lake excursion (27–25.5 ka) and possibly another very short excursion (22 ka) inferred from steep negative inclinations. Ages are based on nine AMS (accelerator mass spectrometry) 14C dates, oxygen isotope stratigraphy and correlation with ODP site 983. Estimates of relative palaeointensity variations for the time interval from 80 to 10 ka have revealed that the documented geomagnetic excursions are linked to large fluctuations of the relative palaeointensity. The lowest values were obtained for the two excursions and the normal–reversed (N–R) and reversed–normal (R–N) transitions of the Laschamp polarity excursion, which itself is characterized by a slight increase of relative palaeointensity during its reversed state. The results are in general agreement with palaeointensity studies from other regions, indicating that these fluctuations could be global phenomena and that the geomagnetic field of the Brunhes Chron was very variable in amplitude as well as in geometry. The new result is one of the rare records comprising large directional as well as large relative palaeointensity variations. Article in Journal/Newspaper Arctic Arctic Ocean DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Gravity corer Kiel type ARK-VIII/2 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Quaternary Environment of the Eurasian North QUEEN |
spellingShingle |
Gravity corer Kiel type ARK-VIII/2 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Quaternary Environment of the Eurasian North QUEEN Nowaczyk, Norbert R Knies, Jochen Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
topic_facet |
Gravity corer Kiel type ARK-VIII/2 Polarstern Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Quaternary Environment of the Eurasian North QUEEN |
description |
A new high-resolution magnetostratigraphic record from the eastern Arctic Ocean has yielded further evidence for the existence of the Laschamp excursion (37–35 ka), the Mono Lake excursion (27–25.5 ka) and possibly another very short excursion (22 ka) inferred from steep negative inclinations. Ages are based on nine AMS (accelerator mass spectrometry) 14C dates, oxygen isotope stratigraphy and correlation with ODP site 983. Estimates of relative palaeointensity variations for the time interval from 80 to 10 ka have revealed that the documented geomagnetic excursions are linked to large fluctuations of the relative palaeointensity. The lowest values were obtained for the two excursions and the normal–reversed (N–R) and reversed–normal (R–N) transitions of the Laschamp polarity excursion, which itself is characterized by a slight increase of relative palaeointensity during its reversed state. The results are in general agreement with palaeointensity studies from other regions, indicating that these fluctuations could be global phenomena and that the geomagnetic field of the Brunhes Chron was very variable in amplitude as well as in geometry. The new result is one of the rare records comprising large directional as well as large relative palaeointensity variations. |
format |
Article in Journal/Newspaper |
author |
Nowaczyk, Norbert R Knies, Jochen |
author_facet |
Nowaczyk, Norbert R Knies, Jochen |
author_sort |
Nowaczyk, Norbert R |
title |
Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
title_short |
Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
title_full |
Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
title_fullStr |
Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
title_full_unstemmed |
Magnetostratigraphy of sediment cores from the eastern Arctic Ocean, supplement to: Nowaczyk, Norbert R; Knies, Jochen (2000): Magnetostratigraphic results from Eastern Arctic Ocean - AMS14C ages and relative palaeointensity data of the Mono Lake and Laschamp geomagnetic events. Geophysical Journal International, 140, 185-197 |
title_sort |
magnetostratigraphy of sediment cores from the eastern arctic ocean, supplement to: nowaczyk, norbert r; knies, jochen (2000): magnetostratigraphic results from eastern arctic ocean - ams14c ages and relative palaeointensity data of the mono lake and laschamp geomagnetic events. geophysical journal international, 140, 185-197 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2000 |
url |
https://dx.doi.org/10.1594/pangaea.671685 https://doi.pangaea.de/10.1594/PANGAEA.671685 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
https://dx.doi.org/10.1046/j.1365-246x.2000.00001.x |
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.671685 https://doi.org/10.1046/j.1365-246x.2000.00001.x |
_version_ |
1766325943232626688 |