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Southern Ocean, Drake Passage, station ANT XXIII/3 69/224

Southern Ocean

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Type
Other medium

Station of de Souza et al. (2012). Below 2000 m, Atlantic δ30Si results from quasi-conservative mixing between NADW precursors (+1.7 to +1.85 ‰, Si-poor) and AABW (about +1.2 ‰, Si-rich); the contrast arises from diatom Si utilisation in the Southern Ocean. Water depth 4096 m; coordinates from Table 1.

δ30Si in ‰ (per mil) Values of the same system

Standard : NBS 28

ValueRangenMineral or matrixSource
1.23 ‰1filtered seawater (0.2-0.45 µm), dissolved silicic acid
Deep waters (≥ 1000 m), 1250 to 1250 m; dissolved silicon 87.8 to 87.8 µM. Profile: 1250 m: +1.23 ‰.
de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in …

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Cite this page

IsoFind Atlas (2026). Southern Ocean, Drake Passage, station ANT XXIII/3 69/224, isotope signatures. https://www.isofind.tech/isotopes/en/sites/ocean-austral-passage-de-drake-station-ant-xxiii-3-69-224/ (accessed 2026-10-13).

@misc{isofind2026southernoceandrakepassagestat,
  title = {Southern Ocean, Drake Passage, station ANT XXIII/3 69/224, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/ocean-austral-passage-de-drake-station-ant-xxiii-3-69-224/},
  note = {Accessed 2026-10-13}
}

Updated : 2026-10-13