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Wang, Wanzhang; Frederichs, Thomas; Korff, Lucia; Nürnberg, Dirk; von Dobeneck, Tilo (2022): Paleomagnetic and rock magnetic data of SO202-33-4, North Pacific [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.947728

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Abstract:
Paleoceanography research is always limited by the accuracy of age-depth relationships. For sediments below carbonate compensation depth (CCD) where other dating methods could hardly be available, relative paleointensity (RPI) provides a continuous geomagnetic field record with high resolution and it could be a practical way to develop an age model. Here we report the rock magnetic and paleomagnetic and relative paleointensity (RPI) records of five cores from the abyssal north pacific retrieved from SO264 and SO202 cruise with water depths greater than 4000m. The rock magnetic analysis showed that the magnetization is carried by two magnetic components, biogenic and detrital magnetite, and little variation in concentration and grain size suggesting that these RPI records are trustworthy. The paleointensity proxies are determined as slopes of NRM versus ARM from 20 to 80 mT for cores from SO264, from 20 to 40 mT for core SO202-33-4, and from 20 to 45 mT for core SO202-35-1. By applying paleomagnetic and relative paleointensity method, we dated these five cores. We documented all polarity reversals in these cores as age control and then correlate our RPI records with North Pacific records EPAPIS and NGC65/KR0310-PC1 to get an age model. Moreover, we defined volcaniclastic layers in each core, which may originate from concurrent eruptions and gravitational sediment redeposition and diagenesis layers from one of the studied cores, and analyzed the impact of biogenic, diagenesis, and volcaniclastic components on the RPI signal. We found long-term NRM loss and RPI amplitude decreasing in our long cores which is related to the variation of magnetic grain size that older sections of the RPI record with their finer (biogenic) magnetic particle sizes have consistently lower values. We consider this effect as the consequence of unstable magnetic behavior of magnetofossil oxidation.
Keyword(s):
Age model; North Pacific; paleomagnetism; Plio-Pleistocene; relative paleointensity (RPI); rock magnetism
Project(s):
Center for Marine Environmental Sciences (MARUM)
Coverage:
Median Latitude: 43.198130 * Median Longitude: 174.047287 * South-bound Latitude: 39.452500 * West-bound Longitude: 168.673300 * North-bound Latitude: 47.745870 * East-bound Longitude: -174.139800
Date/Time Start: 2009-08-10T11:39:00 * Date/Time End: 2018-08-07T11:26:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
30 datasets

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Datasets listed in this bundled publication

  1. Wang, W; Frederichs, T; Korff, L et al. (2022): Age-depth model of sediment core SO202/1_33-4. https://doi.org/10.1594/PANGAEA.947516
  2. Wang, W; Frederichs, T; Korff, L et al. (2022): Rock magnetic of sediment core SO202/1_33-4. https://doi.org/10.1594/PANGAEA.947608
  3. Wang, W; Frederichs, T; Korff, L et al. (2022): Relative paleointensity (RPI) slopes of sediment core SO202/1_33-4. https://doi.org/10.1594/PANGAEA.947696
  4. Wang, W; Frederichs, T; Korff, L et al. (2022): Age-depth model of sediment core SO202/1_35-1. https://doi.org/10.1594/PANGAEA.947517
  5. Wang, W; Frederichs, T; Korff, L et al. (2022): Rock magnetic of sediment core SO202/1_35-1. https://doi.org/10.1594/PANGAEA.947611
  6. Wang, W; Frederichs, T; Korff, L et al. (2022): Relative paleointensity (RPI) slopes of sediment core SO202/1_35-1. https://doi.org/10.1594/PANGAEA.947697
  7. Wang, W; Frederichs, T; Korff, L et al. (2022): Age-depth model of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947518
  8. Wang, W; Frederichs, T; Korff, L et al. (2022): First-order reversal curves (FORC) data of 4, direct moment vs. field of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947544
  9. Wang, W; Frederichs, T; Korff, L et al. (2022): First-order reversal curves (FORC) data of 302, direct moment vs. field of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947563
  10. Wang, W; Frederichs, T; Korff, L et al. (2022): First-order reversal curves (FORC) data of 454, direct moment vs. field of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947568
  11. Wang, W; Frederichs, T; Korff, L et al. (2022): First-order reversal curves (FORC) data of 831, direct moment vs. field of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947569
  12. Wang, W; Frederichs, T; Korff, L et al. (2022): First-order reversal curves (FORC) data of 1103, direct moment vs. field of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947570
  13. Wang, W; Frederichs, T; Korff, L et al. (2022): Paleomagnetic measurements of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947584
  14. Wang, W; Frederichs, T; Korff, L et al. (2022): Rock magnetic of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947616
  15. Wang, W; Frederichs, T; Korff, L et al. (2022): Relative paleointensity (RPI) slopes of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947698
  16. Wang, W; Frederichs, T; Korff, L et al. (2022): Susceptibility of sediment core SO264_19-2. https://doi.org/10.1594/PANGAEA.947722
  17. Wang, W; Frederichs, T; Korff, L et al. (2022): Age-depth model of sediment core SO264_22-2. https://doi.org/10.1594/PANGAEA.947519
  18. Wang, W; Frederichs, T; Korff, L et al. (2022): Paleomagnetic measurements of sediment core SO264_22-2. https://doi.org/10.1594/PANGAEA.947585
  19. Wang, W; Frederichs, T; Korff, L et al. (2022): Rock magnetic of sediment core SO264_22-2. https://doi.org/10.1594/PANGAEA.947618
  20. Wang, W; Frederichs, T; Korff, L et al. (2022): Relative paleointensity (RPI) slopes of sediment core SO264_22-2. https://doi.org/10.1594/PANGAEA.947699
  21. Wang, W; Frederichs, T; Korff, L et al. (2022): Susceptibility of sediment core SO264_22-2. https://doi.org/10.1594/PANGAEA.947723
  22. Wang, W; Frederichs, T; Korff, L et al. (2022): Age-depth model of sediment core SO264_56-2. https://doi.org/10.1594/PANGAEA.947520
  23. Wang, W; Frederichs, T; Korff, L et al. (2022): Paleomagnetic measurements of sediment core SO264_56-2. https://doi.org/10.1594/PANGAEA.947586
  24. Wang, W; Frederichs, T; Korff, L et al. (2022): Rock magnetic of sediment core SO264_56-2. https://doi.org/10.1594/PANGAEA.947621
  25. Wang, W; Frederichs, T; Korff, L et al. (2022): Relative paleointensity (RPI) slopes of sediment core SO264_56-2. https://doi.org/10.1594/PANGAEA.947700
  26. Wang, W; Frederichs, T; Korff, L et al. (2022): Susceptibility of sediment core SO264_56-2. https://doi.org/10.1594/PANGAEA.947724
  27. Wang, W; Frederichs, T; Korff, L et al. (2022): Paleomagnetic measurements of sediment core SO202/1_33-4. https://doi.org/10.1594/PANGAEA.947582
  28. Wang, W; Frederichs, T; Korff, L et al. (2022): Susceptibility of sediment core SO202/1_33-4. https://doi.org/10.1594/PANGAEA.947720
  29. Wang, W; Frederichs, T; Korff, L et al. (2022): Paleomagnetic measurements of sediment core SO202/1_35-1. https://doi.org/10.1594/PANGAEA.947583
  30. Wang, W; Frederichs, T; Korff, L et al. (2022): Susceptibility of sediment core SO202/1_35-1. https://doi.org/10.1594/PANGAEA.947721