(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352
A combination of high sedimentation rates and high concentrations of magnetic grains in cores from Ocean Drilling Program Leg 126 resulted in the recovery of detailed direction and intensity records of the Brunhes/Matuyama geomagnetic polarity reversal. Virtual geomagnetic poles (VGPs) computed from...
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PANGAEA - Data Publisher for Earth & Environmental Science
1992
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Online Access: | https://dx.doi.org/10.1594/pangaea.773510 https://doi.pangaea.de/10.1594/PANGAEA.773510 |
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ftdatacite:10.1594/pangaea.773510 2023-05-15T16:19:38+02:00 (Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 Cisowski, Stanley M Koyama, Masato 1992 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.773510 https://doi.pangaea.de/10.1594/PANGAEA.773510 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.126.142.1992 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label IRM, Intensity, per unit volume ARM, Intensity, per unit volume NRM, Intensity after demagnetization NRM, Median destructive field/IRM, Median destructive field ratio NRM, Median destructive field/ARM, Median destructive field ratio Virtual geomagnetic pole latitude Virtual geomagnetic pole longitude Demagnetization level Type Drilling/drill rig DSDP/ODP/IODP sample designation Leg126 Joides Resolution Ocean Drilling Program ODP Supplementary Dataset dataset Dataset 1992 ftdatacite https://doi.org/10.1594/pangaea.773510 https://doi.org/10.2973/odp.proc.sr.126.142.1992 2022-02-08T16:02:21Z A combination of high sedimentation rates and high concentrations of magnetic grains in cores from Ocean Drilling Program Leg 126 resulted in the recovery of detailed direction and intensity records of the Brunhes/Matuyama geomagnetic polarity reversal. Virtual geomagnetic poles (VGPs) computed from azimuthally oriented samples taken from the cores of Hole 792A in the western Izu-Bonin forearc basin reveal that the geomagnetic pole persisted at moderate to high southern latitudes for several thousand years before a rapid migration to northern latitudes. Alternating-field demagnetization behavior, as well as NRM, NRM/ARM, and NRM/IRM intensities for samples from this same interval, and the NRM/IRM intensities derived from unoriented core samples from Holes 790C and 791B, drilled in the ~100-km distant Sumisu Rift, all suggest that the dipole field oscillated widely in intensity before the reversal. The fast polarity change occurred at the low point of an ~1100-yr field intensity cycle. This "reversal cycle" immediately followed earlier intensity cycles whose peaks rivaled or surpassed the normalized intensities of discrete samples from well above and below the reversal interval; furthermore, the troughs indicate a much diminished dipole field at their nadir. : Measurements of sample 126-792A-7H-2,21 made after heating the sample to 500°C. Dataset Geomagnetic Pole DataCite Metadata Store (German National Library of Science and Technology) Low Point ENVELOPE(-37.183,-37.183,-54.050,-54.050) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label IRM, Intensity, per unit volume ARM, Intensity, per unit volume NRM, Intensity after demagnetization NRM, Median destructive field/IRM, Median destructive field ratio NRM, Median destructive field/ARM, Median destructive field ratio Virtual geomagnetic pole latitude Virtual geomagnetic pole longitude Demagnetization level Type Drilling/drill rig DSDP/ODP/IODP sample designation Leg126 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Sample code/label IRM, Intensity, per unit volume ARM, Intensity, per unit volume NRM, Intensity after demagnetization NRM, Median destructive field/IRM, Median destructive field ratio NRM, Median destructive field/ARM, Median destructive field ratio Virtual geomagnetic pole latitude Virtual geomagnetic pole longitude Demagnetization level Type Drilling/drill rig DSDP/ODP/IODP sample designation Leg126 Joides Resolution Ocean Drilling Program ODP Cisowski, Stanley M Koyama, Masato (Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
topic_facet |
Sample code/label IRM, Intensity, per unit volume ARM, Intensity, per unit volume NRM, Intensity after demagnetization NRM, Median destructive field/IRM, Median destructive field ratio NRM, Median destructive field/ARM, Median destructive field ratio Virtual geomagnetic pole latitude Virtual geomagnetic pole longitude Demagnetization level Type Drilling/drill rig DSDP/ODP/IODP sample designation Leg126 Joides Resolution Ocean Drilling Program ODP |
description |
A combination of high sedimentation rates and high concentrations of magnetic grains in cores from Ocean Drilling Program Leg 126 resulted in the recovery of detailed direction and intensity records of the Brunhes/Matuyama geomagnetic polarity reversal. Virtual geomagnetic poles (VGPs) computed from azimuthally oriented samples taken from the cores of Hole 792A in the western Izu-Bonin forearc basin reveal that the geomagnetic pole persisted at moderate to high southern latitudes for several thousand years before a rapid migration to northern latitudes. Alternating-field demagnetization behavior, as well as NRM, NRM/ARM, and NRM/IRM intensities for samples from this same interval, and the NRM/IRM intensities derived from unoriented core samples from Holes 790C and 791B, drilled in the ~100-km distant Sumisu Rift, all suggest that the dipole field oscillated widely in intensity before the reversal. The fast polarity change occurred at the low point of an ~1100-yr field intensity cycle. This "reversal cycle" immediately followed earlier intensity cycles whose peaks rivaled or surpassed the normalized intensities of discrete samples from well above and below the reversal interval; furthermore, the troughs indicate a much diminished dipole field at their nadir. : Measurements of sample 126-792A-7H-2,21 made after heating the sample to 500°C. |
format |
Dataset |
author |
Cisowski, Stanley M Koyama, Masato |
author_facet |
Cisowski, Stanley M Koyama, Masato |
author_sort |
Cisowski, Stanley M |
title |
(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
title_short |
(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
title_full |
(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
title_fullStr |
(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
title_full_unstemmed |
(Table 1) Remanence properties of samples from ODP Core 126-792A-7H, supplement to: Cisowski, Stanley M; Koyama, Masato (1992): Detailed record of the Brunhes/Matuyama polarity reversal in high sedimentation rate marine sediments from the Izu-Bonin Arc. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 341-352 |
title_sort |
(table 1) remanence properties of samples from odp core 126-792a-7h, supplement to: cisowski, stanley m; koyama, masato (1992): detailed record of the brunhes/matuyama polarity reversal in high sedimentation rate marine sediments from the izu-bonin arc. in: taylor, b; fujioka, k; et al. (eds.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 126, 341-352 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1992 |
url |
https://dx.doi.org/10.1594/pangaea.773510 https://doi.pangaea.de/10.1594/PANGAEA.773510 |
long_lat |
ENVELOPE(-37.183,-37.183,-54.050,-54.050) |
geographic |
Low Point |
geographic_facet |
Low Point |
genre |
Geomagnetic Pole |
genre_facet |
Geomagnetic Pole |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.126.142.1992 |
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.773510 https://doi.org/10.2973/odp.proc.sr.126.142.1992 |
_version_ |
1766006048271892480 |