Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 Horiike Satoshi Miyairi Yosuke miyairi@aori.u-tokyo.ac.jp Aze Takahiro Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 2026 Beryllium isotope and planktonic foraminifera d18O for sediment core MD05-2970 dataset https://doi.org/10.1594/PANGAEA.995768 2026-07-08T11:12:15 Reactive phase Be isotopes, 10Be and 9Be, and major elament measurements were performed on 53 samples from core MD05-2970. d18O of Globigerinoides ruber are measured from the same core for 288 samples, respectively. We constrained a new age model using planktonic foraminifera (G. ruber) δ18O data along with the existing radiocarbon ages (Nemoto et al., 2024) in BIGMACS (Lee et al., 2023). The use of planktonic rather than benthic foraminifera δ18O is consistent with previous studies in the Indian Ocean (Khan et al., 2022; Kim et al., 2018; Lathika et al., 2021; Lu et al., 2022; Qian et al., 2025; Saher et al., 2009). A Thermo ELEMENT XR™ single collector sector field high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) installed at the Atmosphere and Occean Research Institute was used to obtain [9Be] (Sproson, Aze et al., 2021). 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). Khan Hidayatullah Govil Pawan Panchang Rajani Kumar Pankaj pkb@iuac.res.in 0000-0001-7050-582X Agrawal Shailesh 2022 Surface hydrographic variations in the western Arabian Sea through the last 172 kyr journal article Geo-Marine Letters 42(2) https://doi.org/10.1007/s00367-022-00733-y 10 Kim Ji-Eun kim.6501@osu.edu 0000-0002-7668-5072 Khim Boo-Keun bkkhim@pusan.ac.kr Ikehara Minoru ikehara@kochi-u.ac.jp 0000-0002-2695-4713 Lee Jongmin 2018 Orbital-scale denitrification changes in the Eastern Arabian Sea during the last 800 kyrs journal article Scientific Reports 8(1) https://doi.org/10.1038/s41598-018-25415-7 Korte Monika 0000-0003-2970-9075 Constable Catherine Donadini Fabio Holme Richard 2011 Reconstructing the Holocene geomagnetic field journal article Earth and Planetary Science Letters 312(3-4) https://doi.org/10.1016/j.epsl.2011.10.031 497-505 Lathika Nambiyathodi Rahaman Waliur waliur@ncapor.res.in 0000-0001-6439-4529 Tarique Mohd mohd.tarique80@gmail.com 0000-0002-3203-2694 Gandhi Naveen Kumar Avinash Thamban Meloth meloth@ncpor.res.in 0000-0003-3379-8189 2021 Deep water circulation in the Arabian Sea during the last glacial cycle: Implications for paleo-redox condition, carbon sink and atmospheric CO2 variability journal article Quaternary Science Reviews 257 https://doi.org/10.1016/j.quascirev.2021.106853 106853 Lee T 0000-0002-5936-762X Rand Devin S drand@ucsb.edu 0000-0002-1860-2582 Lisiecki Lorraine E lelisi@ucsb.edu http://lorraine-lisiecki.com/ 0000-0001-7859-0096 Gebbie Geoffrey ggebbie@whoi.edu Lawrence Charles E charles_lawrence@brown.edu 2023 Bayesian age models and stacks: combining age inferences from radiocarbon and benthic δ 18 O stratigraphic alignment journal article Climate of the Past 19(10) https://doi.org/10.5194/cp-19-1993-2023 1993-2012 Lu Wanyi wlu@whoi.edu 0000-0002-2837-654X Wang Yi ywang@whoi.edu 0000-0001-5633-3312 Oppo Delia W doppo@whoi.edu 0000-0003-2946-5904 Nielsen Sune G snielsen@whoi.edu 0000-0002-0458-3739 Costa Kassandra M kassandra.costa@whoi.edu 0000-0001-8715-638X 2022 Comparing paleo-oxygenation proxies (benthic foraminiferal surface porosity, I/Ca, authigenic uranium) on modern sediments and the glacial Arabian Sea journal article Geochimica et Cosmochimica Acta 331 https://doi.org/10.1016/j.gca.2022.06.001 69-85 Matsuzaki Hiroyuki Nakano Chuichiro Tsuchiya Yoko Sunohara Kato Kazuhiro Maejima Yuji Miyairi Yosuke miyairi@aori.u-tokyo.ac.jp Wakasa Sachi Aze Takahiro 2007 Multi-nuclide AMS performances at MALT journal article Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 259(1) https://doi.org/10.1016/j.nimb.2007.01.145 36-40 Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 Horiike Satoshi Obrochta Stephen P obrochta@gipc.akita-u.ac.jp 0000-0001-9632-0372 Miyairi Yosuke miyairi@aori.u-tokyo.ac.jp 2024 Meridional migrations of the Intertropical Convergence Zone during the last deglaciation in the Timor Sea detected by extensive radiocarbon dating journal article Radiocarbon 66(6) https://doi.org/10.1017/RDC.2024.13 1958-1967 Nishiizumi Kunihiko Imamura Mineo Caffee Marc W mcaffee@purdue.edu 0000-0002-6846-8967 Southon John R Finkel Robert C McAninch Jeffrey 2007 Absolute calibration of 10Be AMS standards journal article Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 258(2) https://doi.org/10.1016/j.nimb.2007.01.297 403-413 Qian Fang 0000-0001-9882-2325 Wang Yi ywang@whoi.edu 0000-0001-5633-3312 Costa Kassandra M kassandra.costa@whoi.edu 0000-0001-8715-638X Nielsen Sune G snielsen@whoi.edu 0000-0002-0458-3739 2025 Ocean Oxygenation Changes in the Arabian Sea Oxygen Minimum Zone During the Penultimate Glacial Cycle journal article Paleoceanography and Paleoclimatology 40(6) https://doi.org/10.1029/2024PA005059 e2024PA005059 Saher Margot Rostek Frauke rostek@cerege.fr http://www.cerege.fr/trac_org/ROSTEK/rostek.html Jung S J A Bard Edouard bard@cerege.fr 0000-0002-7237-8622 Schneider Ralph R ralph.schneider@ifg.uni-kiel.de 0000-0003-1453-9181 Greaves Mervyn mg109@cam.ac.uk 0000-0001-8014-8627 Ganssen Gerald M gerald.ganssen@falw.vu.nl Elderfield Henry he101@esc.cam.ac.uk http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield Kroon Dick dick.kroon@ed.ac.uk 2009 Western Arabian Sea SST during the penultimate interglacial: A comparison of UK'37 and Mg/Ca paleothermometry journal article Paleoceanography 24(2) https://doi.org/10.1029/2007PA001557 PA2212 Sproson Adam adamsproson@gmail.com Aze Takahiro Behrens Bethany Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 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 journal article Rapid Communications in Mass Spectrometry 35(8) https://doi.org/10.1002/rcm.9059 e9059 von Blanckenburg Friedhelm friedhelm.von.blanckenburg@gfz-potsdam.de 0000-0002-2964-717X Bouchez Julien Ibarra Daniel E Maher Kate 2015 Stable runoff and weathering fluxes into the oceans over Quaternary climate cycles journal article Nature Geoscience 8(7) https://doi.org/10.1038/ngeo2452 538-542 130.5999999999992 130.5999999999992 -9.25 -9.25 130.5999999999992 -9.25 2005-07-07T00:00:00 2005-07-07T00:00:00 0.0 28.9 Japan Science and Technology Agency JST https://doi.org/10.13039/501100002241 JPMJSP2108 JST SPRING Japan Science Society JSS https://doi.org/10.13039/501100007807 2023-6015 Japan Society for the Promotion of Science JSPS https://www.jsps.go.jp/english/ https://doi.org/10.13039/501100001691 15KK0151 Understanding ice sheets dynamics and climate changes(Fostering Joint International Research) https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15KK0151 Japan Society for the Promotion of Science JSPS https://www.jsps.go.jp/english/ https://doi.org/10.13039/501100001691 20H00193 A study on Longterm Environmental changes and Wethering https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20H00193 Japan Society for the Promotion of Science JSPS https://www.jsps.go.jp/english/ https://doi.org/10.13039/501100001691 24H00094 Geochronological studies for the understanding of the archaeology of the late Pleistocene in the Amami and Okinawa regions https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24H00094 MD05-2970 MD052970 -9.4167 131.0 Arafura Sea -437.0 2005-07-07T00:00:00 MD148 MD148 IMAGES XIII - PECTEN IMAGES XIII - PECTEN 2005-06-12T00:00:00 2005-06-12 2005-07-08T00:00:00 2005-07-08 Marion Dufresne (1995) https://en.wikipedia.org/wiki/Marion_Dufresne_(1994) FNIN 9050814 Beaufort, Luc Beaufort, Luc Marion Dufresne (1995) https://en.wikipedia.org/wiki/Marion_Dufresne_(1994) FNIN 9050814 Calypso Corer II CALYPSO2 28.92 m 659 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 Event LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 Longitude DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 Depth sed [m] AGE Age ka BP http://en.wikipedia.org/wiki/Kyr age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 Age [ka BP] Beryllium-9 9Be 10**16 atoms/g beryllium-9 http://purl.obolibrary.org/obo/CHEBI_52628 Abundance per Mass High-resolution inductively coupled plasma mass spectrometer (HR-ICP-MS), Thermo Scientific, ELEMENT XR Thermo Fisher Scientific ELEMENT XR high resolution inductively coupled plasma mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1221/ Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 9Be [10**16 atoms/g] (High-resolution inductively c...) Beryllium-9, error 9Be e ± High-resolution inductively coupled plasma mass spectrometer (HR-ICP-MS), Thermo Scientific, ELEMENT XR Thermo Fisher Scientific ELEMENT XR high resolution inductively coupled plasma mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1221/ Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 1σ- 9Be e [±] (1σ-, High-resolution inductiv...) Beryllium-9, error 9Be e ± High-resolution inductively coupled plasma mass spectrometer (HR-ICP-MS), Thermo Scientific, ELEMENT XR Thermo Fisher Scientific ELEMENT XR high resolution inductively coupled plasma mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1221/ Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 1σ+ 9Be e [±] (1σ+, High-resolution inductiv...) Beryllium-10 10Be 10**9 atoms/g beryllium-10 10Be Abundance per Mass Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 10Be [10**9 atoms/g] Beryllium-10, error 10Be e ± beryllium-10 10Be Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 1σ 10Be e [±] (1σ) Beryllium-10/Beryllium-9 10Be/9Be 10**-7 atoms/atoms beryllium-10 10Be beryllium-9 http://purl.obolibrary.org/obo/CHEBI_52628 Accelerator mass spectrometry (AMS) Chromatographs & spectrometers gas chromatograph mass spectrometers http://vocab.nerc.ac.uk/collection/L05/current/LAB19/ Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 production corrected 10Be/9Be [10**-7 atoms/atoms] (production corrected, Acceler...) Beryllium-10/Beryllium-9 ratio, error 10Be/9Be e ± beryllium-10 10Be beryllium-9 http://purl.obolibrary.org/obo/CHEBI_52628 Accelerator mass spectrometry (AMS) Chromatographs & spectrometers gas chromatograph mass spectrometers http://vocab.nerc.ac.uk/collection/L05/current/LAB19/ Nemoto Karin nemoto@aori.u-tokyo.ac.jp 0000-0001-7969-8357 production corrected 10Be/9Be e [±] (production corrected, Acceler...) Globigerinoides ruber, δ18O G. ruber δ18O ‰ PDB Globigerinoides ruber https://www.marinespecies.org/aphia.php?p=taxdetails&id=113444 δ18O http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes Yokoyama Yusuke yokoyama@aori.u-tokyo.ac.jp 0000-0001-7869-5891 G. ruber δ18O [‰ PDB] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable beryllium isotope Indonesian Throughflow author101532 author104129 author10780 author10930 author10979 author113386 author113388 author113389 author113390 author113391 author113392 author113393 author113394 author113395 author113397 author113398 author113399 author118213 author118215 author118216 author118217 author23039 author23093 author23094 author28304 author28492 author29387 author29438 author29621 author33087 author34005 author34497 author34940 author38847 author41144 author42643 author48108 author51471 author54578 author55763 author57751 author59399 author60455 author620 author63317 author64057 author67579 author67807 author73121 author73123 author733 author73703 author73704 author73788 author73789 author74179 author75429 author757 author82943 author83827 author86116 author876 author87937 award4466 award5121 award5122 award5124 award5125 basis94 campaign30045 campaign3396703 curlevel30 event2357923 funder20214 funder20747 funder20829 geocode1 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 journal11670 journal12083 journal12511 journal13626 journal13658 journal13689 journal16727 journal16885 journal3567 journal4644 journal5996 journal6009 license21 method10862 method19388 method502 param109 param173135 param186141 param186142 param50005 param510675 param550957 pi104129 pi29387 ref102577 ref103007 ref103070 ref115718 ref135754 ref136325 ref136326 ref136328 ref136329 ref140495 ref140496 ref140497 ref63869 term1047599 term1073093 term1073131 term1073135 term1120578 term20980 term2299480 term2300849 term38263 term41056 term41218 term43863 term43975 term44024 term542 term68027 term78274