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Atlantic, Bay of Biscay, station ANT XXIII/1 69/6

Atlantic 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 4620 m; coordinates from Table 1.

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

Standard : NBS 28

ValueRangenMineral or matrixSource
1.83 ± 0.4 ‰1.55 / 2.11 ‰2filtered seawater (0.2-0.45 µm), dissolved silicic acid
Mean and standard deviation recalculated from 2 samples. Thermocline and intermediate waters (< 1000 m), 200 to 455 m; dissolved silicon 2.6 to 4.4 µM. Profile: 200 m: +2.11, 455 m: +1.55 ‰.
de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in …
1.29 ‰1.29 / 1.29 ‰2filtered seawater (0.2-0.45 µm), dissolved silicic acid
Mean and standard deviation recalculated from 2 samples. Deep waters (≥ 1000 m), 3000 to 4621 m; dissolved silicon 36.8 to 46.1 µM. Profile: 3000 m: +1.29, 4621 m: +1.29 ‰.
de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in …

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Atlantic, Bay of Biscay, station ANT XXIII/1 69/6, isotope signatures. https://www.isofind.tech/isotopes/en/sites/atlantique-golfe-de-gascogne-station-ant-xxiii-1-69-6/ (accessed 2026-10-13).

@misc{isofind2026atlanticbayofbiscaystationant,
  title = {Atlantic, Bay of Biscay, station ANT XXIII/1 69/6, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/atlantique-golfe-de-gascogne-station-ant-xxiii-1-69-6/},
  note = {Accessed 2026-10-13}
}

Updated : 2026-10-13