Atlantic, Angola Basin, station KN192-5 13
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 5400 m; coordinates from Table 1.
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 1.63 ± 0.21 ‰ | 1.37 / 2.05 ‰ | 8 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Mean and standard deviation recalculated from 8 samples. Thermocline and intermediate waters (< 1000 m), 70 to 999 m; dissolved silicon 2.3 to 36.4 µM. Profile: 70 m: +2.05, 110 m: +1.76, 150 m: +1.71, 200 m: +1.57, 399 m: +1.60, 600 m: +1.53, 799 m: +1.43, 999 m: +1.37 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
| 1.27 ± 0.06 ‰ | 1.21 / 1.38 ‰ | 9 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Mean and standard deviation recalculated from 9 samples. Deep waters (≥ 1000 m), 1249 to 5106 m; dissolved silicon 29.2 to 53.8 µM. Profile: 1249 m: +1.36, 1499 m: +1.32, 1999 m: +1.38, 2499 m: +1.23, 3000 m: +1.25, 3500 m: +1.21, 3999 m: +1.25, 4499 m: +1.25, 5106 m: +1.21 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
Deposits of the same type
- Atlantic, Angola Basin, station ANT XXIII/1 69/21
- Atlantic, Cape Basin, station ANT XXIII/1 69/26
- Atlantic, Guinea Basin/Chain Fracture Zone, station ANT XXIII/1 69/18
- Atlantic, Brazil Basin, station KN192-5 3
- Atlantic, Cape Verde Basin, station ANT XXIII/1 69/14
- Subantarctic South Atlantic, Meteor Rise (TSO-5)
- Southern Ocean (Atlantic sector), Polar Front, station PS71-104
- Atlantic, Canary/Cape Verde Basin, station ANT XXIII/1 69/11
Cite this page
IsoFind Atlas (2026). Atlantic, Angola Basin, station KN192-5 13, isotope signatures. https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-d-angola-station-kn192-5-13/ (accessed 2026-10-13).
@misc{isofind2026atlanticangolabasinstationkn1,
title = {Atlantic, Angola Basin, station KN192-5 13, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-d-angola-station-kn192-5-13/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13