Nemoto, Karin; Yokoyama, Yusuke; Sproson, Adam; Miyairi, Yosuke; Aze, Takahiro; Rosenthal, Yair; Bova, Samantha C; Riechelson, Hailey: Beryllium isotope, major element and foraminifera d18O for sediment core J1004 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987374 (dataset in review)
Abstract:
Reactive phase Be isotopes, 10Be and 9Be, and major elament measurements were performed on 37 samples from site J1004 hole A. d18O of Neogloboquadrina pachyderma and U. peregrina are measured from the same core for 138 and 143 samples, respectively. The age-depth model for J1004 was published in Riechelson et al., (2023). We follow the method of Sproson et al., (2021) for extracting and measuring reactive Be isotopes in sediments. 10Be/9Be was measured using a National Electrostatic Corporation (NEC) accelerator mass spectrometer (AMS), of 5 MV terminal voltage, at the University of Tokyo (UTokyo), Micro Analysis Laboratory, Tandem accelerator (Matsuzaki et al., 2007). Absolute values were obtained using the KNB5-2 standard (10Be/9Be = 8.558 × 10−12; (Nishiizumi et al., 2007). Decay correction is performed on 10Be concentration using a 10Be half-life of 1.387 Ma. The 10Be/9Be ratios were corrected for 10Be paleo-production using the paleomagnetic reference records of the geomagnetic dipole moment (Korte et al., 2011) following von Blanckenburg et al. (2015). Major elements concentrations were measured by a Rigaku 3270 model X-ray fluorescence (XRF) analysis using glass beads and following the method of Shiroya et al., (2013). Planktonic and benthic foraminifera (Neogloboquadrina pachyderma and U. peregrina, respectively) from the >125 μm size fraction were sonicated in MilliQ water to remove debris prior to analyzing d18O on a Micromass Optima mass spectrometer with a Multiprep device at Rutgers University.
References:
Korte, Monika; Constable, Catherine; Donadini, Fabio; Holme, Richard (2011): Reconstructing the Holocene geomagnetic field. Earth and Planetary Science Letters, 312(3-4), 497-505, https://doi.org/10.1016/j.epsl.2011.10.031
Matsuzaki, Hiroyuki; Nakano, Chuichiro; Tsuchiya, Yoko Sunohara; Kato, Kazuhiro; Maejima, Yuji; Miyairi, Yosuke; Wakasa, Sachi; Aze, Takahiro (2007): Multi-nuclide AMS performances at MALT. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 259(1), 36-40, https://doi.org/10.1016/j.nimb.2007.01.145
Nishiizumi, Kunihiko; Imamura, Mineo; Caffee, Marc W; Southon, John R; Finkel, Robert C; McAninch, Jeffrey (2007): Absolute calibration of 10Be AMS standards. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 258(2), 403-413, https://doi.org/10.1016/j.nimb.2007.01.297
Riechelson, Hailey; Bova, Samantha C; Rosenthal, Yair; Meyers, Stephen R; Bu, K (2023): NOAA/WDS Paleoclimatology - Holocene Chilean Margin Geochemistry and Benthic Isotope Data [dataset]. NOAA National Centers for Environmental Information, https://doi.org/10.25921/4MN2-H298
Riechelson, Hailey; Bova, Samantha C; Rosenthal, Yair; Meyers, Stephen R; Bu, K (2023): Solar Cycles Forced Southern Westerly Wind Migrations During the Holocene. Geophysical Research Letters, 50(16), e2023GL104148, https://doi.org/10.1029/2023GL104148
Shiroya, Kazuyo; Yokoyama, Yusuke; Obrochta, Stephen P; Harada, Naomi; Miyairi, Yosuke; Matsuzaki, Hiroyuki (2013): Melting history of the Patagonian Ice Sheet during Termination I inferred from marine sediments. Geochemical Journal, 47(2), 107-117, https://doi.org/10.2343/geochemj.2.0231
Sproson, Adam; Aze, Takahiro; Behrens, Bethany; Yokoyama, Yusuke (2021): Initial measurement of beryllium-9 using high-resolution inductively coupled plasma mass spectrometry allows for more precise applications of the beryllium isotope system within the Earth Sciences. Rapid Communications in Mass Spectrometry, 35(8), e9059, https://doi.org/10.1002/rcm.9059
von Blanckenburg, Friedhelm; Bouchez, Julien; Ibarra, Daniel E; Maher, Kate (2015): Stable runoff and weathering fluxes into the oceans over Quaternary climate cycles. Nature Geoscience, 8(7), 538-542, https://doi.org/10.1038/ngeo2452
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 18F18791: Research on palaeoenvironmental reconstruction using cosmic ray nuclides in Antarctic sediments
Japan Society for the Promotion of Science (JSPS), grant/award no. 20H00193: A study on Longterm Environmental changes and Wethering
Japan Society for the Promotion of Science (JSPS), grant/award no. 23KK0013: Study to investigate the Holocene Temperature Conundrum
National Science Foundation (NSF), grant/award no. 1756241: Digging Deeper with the JR100: Extending high resolution paleoclimate records from the Chilean Margin to the Eemian
Coverage:
Latitude: -44.000500 * Longitude: -75.151083
Date/Time Start: 2019-08-06T00:00:00 * Date/Time End: 2019-08-06T00:00:00
Minimum DEPTH, sediment/rock: 0.030 m * Maximum DEPTH, sediment/rock: 65.530 m
Event(s):
379T-J1004A (J1004A) * Latitude: -44.000500 * Longitude: -75.151083 * Date/Time: 2019-08-06T00:00:00 * Elevation: -1125.0 m * Campaign: Exp379T * Basis: Joides Resolution * Method/Device: Advanced piston corer
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Nemoto, Karin | |||
| 2 | LATITUDE | Latitude | Nemoto, Karin | Geocode | ||
| 3 | LONGITUDE | Longitude | Nemoto, Karin | Geocode | ||
| 4 | DEPTH, sediment/rock | Depth sed | m | Nemoto, Karin | Geocode | |
| 5 | AGE | Age | ka BP | Nemoto, Karin | Geocode | |
| 6 | Beryllium-9 | 9Be | 1016 atoms/g | Nemoto, Karin | ||
| 7 | Beryllium-9, error | 9Be e | ± | Nemoto, Karin | 1σ | |
| 8 | Beryllium-10 | 10Be | 109 atoms/g | Nemoto, Karin | ||
| 9 | Beryllium-10, error | 10Be e | ± | Nemoto, Karin | 1σ | |
| 10 | Beryllium-10/Beryllium-9 ratio | 10Be/9Be | Nemoto, Karin | production corrected | ||
| 11 | Beryllium-10/Beryllium-9 ratio, error | 10Be/9Be e | ± | Nemoto, Karin | 1σ, production corrected | |
| 12 | Carbon, organic, total | TOC | % | Nemoto, Karin | ||
| 13 | Neogloboquadrina pachyderma, δ18O | N. pachyderma δ18O | ‰ PDB | Nemoto, Karin | ||
| 14 | Uvigerina peregrina, δ18O | U. peregrina δ18O | ‰ PDB | Nemoto, Karin |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
536 data points