Atlantic, Angola Basin, station ANT XXIII/1 69/21
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 5747 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 ± 0.23 ‰ | 1.43 / 1.88 ‰ | 3 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Mean and standard deviation recalculated from 3 samples. Thermocline and intermediate waters (< 1000 m), 100 to 800 m; dissolved silicon 5.2 to 32.8 µM. Profile: 100 m: +1.88, 200 m: +1.59, 800 m: +1.43 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
| 1.28 ‰ | 1 | filtered seawater (0.2-0.45 µm), dissolved silicic acid Deep waters (≥ 1000 m), 4500 to 4500 m; dissolved silicon 52.5 to 52.5 µM. Profile: 4500 m: +1.28 ‰. | de Souza et al. (2012), Southern Ocean control of silicon stable isotope distribution in … |
Deposits of the same type
- Atlantic, Angola Basin, station KN192-5 13
- Atlantic, Guinea Basin/Chain Fracture Zone, station ANT XXIII/1 69/18
- Atlantic, Cape Basin, station ANT XXIII/1 69/26
- 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 ANT XXIII/1 69/21, isotope signatures. https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-d-angola-station-ant-xxiii-1-69-21/ (accessed 2026-10-13).
@misc{isofind2026atlanticangolabasinstationant,
title = {Atlantic, Angola Basin, station ANT XXIII/1 69/21, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/atlantique-bassin-d-angola-station-ant-xxiii-1-69-21/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13