Hydrogenetic Fe-Mn deposit (crust), North Atlantic (Discovery 144, D 10979)
Atlantic Ocean
Other media
- Type
- Other medium
Hydrogenetic Fe-Mn deposit (crust) of Rehkämper et al. (2002), North Atlantic, 5347-4867 m water depth; 28.2 ppm Tl. Hydrogenetic crusts, precipitated directly from seawater, have the heaviest ε205Tl (+10.4 to +14.3), unrelated to basin, depth or lead isotopes: constant fractionation of about +21 ε relative to seawater (α = 1.0021). Coordinates from Table 1.
ε205Tl in ε units (parts per 10,000) Values of the same system
Standard : NIST SRM 997
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 12.6 ± 0.45 ε | 1 | Single analysis; ± 0.45 ε (2σ, external reproducibility on an in-house Fe-Mn crust); 28.2 ppm Tl. | Rehkämper et al. (2002), Thallium isotope variations in seawater and hydrogenetic, diagen… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 19.003 ± 0.003 | 1 | Single analysis; uncertainty estimated from the external precision of about 150 ppm (2σ). | Rehkämper et al. (2002), Thallium isotope variations in seawater and hydrogenetic, diagen… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.685 ± 0.002 | 1 | Single analysis; uncertainty estimated from the external precision of about 150 ppm (2σ). | Rehkämper et al. (2002), Thallium isotope variations in seawater and hydrogenetic, diagen… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 39.098 ± 0.006 | 1 | Single analysis; uncertainty estimated from the external precision of about 150 ppm (2σ). | Rehkämper et al. (2002), Thallium isotope variations in seawater and hydrogenetic, diagen… |
Deposits of the same type
- Tenerife coastal seawater (TSW) Spain
- Atlantic, Canary/Cape Verde Basin, station ANT XXIII/1 69/11
- Atlantic, Newfoundland Basin, station 64PE319 11
- TAG active mound hydrothermal fluids (Mid-Atlantic Ridge)
- Atlantic, Cape Verde Basin, station ANT XXIII/1 69/14
- Atlantic, Bay of Biscay, station ANT XXIII/1 69/6
- Atlantic, Bay of Biscay, station ANT XXIII/1 69/3
- Iceland Basin, station 28 (RRS Discovery cruise 354)
Cite this page
IsoFind Atlas (2026). Hydrogenetic Fe-Mn deposit (crust), North Atlantic (Discovery 144, D 10979), isotope signatures. https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-atlantique-nord-discovery-144-d-10979/ (accessed 2026-10-16).
@misc{isofind2026hydrogeneticfemndepositcrustn,
title = {Hydrogenetic Fe-Mn deposit (crust), North Atlantic (Discovery 144, D 10979), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-atlantique-nord-discovery-144-d-10979/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16