Atlantic, Brazil Basin, station KN192-5 3
Atlantic Ocean
Other media
- 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 4400 m; coordinates from Table 1.
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 1.62 ± 0.31 ‰ | 1.31 / 2.32 ‰ | 10 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Mean and standard deviation recalculated from 10 samples. Thermocline and intermediate waters (< 1000 m), 109 to 999 m; dissolved silicon 1.4 to 35.7 µM. Profile: 109 m: +2.32, 150 m: +1.95, 200 m: +1.72, 300 m: +1.55, 399 m: +1.55, 499 m: +1.49, 599 m: +1.47, 699 m: +1.41, 800 m: +1.42, 999 m: +1.31 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
| 1.29 ± 0.07 ‰ | 1.21 / 1.37 ‰ | 7 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Mean and standard deviation recalculated from 7 samples. Deep waters (≥ 1000 m), 1499 to 3999 m; dissolved silicon 23.4 to 64.8 µM. Profile: 1499 m: +1.37, 2000 m: +1.33, 2499 m: +1.37, 3000 m: +1.28, 3500 m: +1.22, 3832 m: +1.21, 3999 m: +1.25 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
Deposits of the same type
- Atlantic, Guinea Basin/Chain Fracture Zone, station ANT XXIII/1 69/18
- Atlantic, Angola Basin, station ANT XXIII/1 69/21
- Atlantic, Cape Verde Basin, station ANT XXIII/1 69/14
- Atlantic, Angola Basin, station KN192-5 13
- Atlantic, Canary/Cape Verde Basin, station ANT XXIII/1 69/11
- Atlantic, Cape Basin, station ANT XXIII/1 69/26
- Subantarctic South Atlantic, Meteor Rise (TSO-5)
- Southern Ocean (Atlantic sector), Polar Front, station PS71-104
Cite this page
IsoFind Atlas (2026). Atlantic, Brazil Basin, station KN192-5 3, isotope signatures. https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-du-bresil-station-kn192-5-3/ (accessed 2026-10-13).
@misc{isofind2026atlanticbrazilbasinstationkn1,
title = {Atlantic, Brazil Basin, station KN192-5 3, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-du-bresil-station-kn192-5-3/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13