Hydrogenetic Fe-Mn deposit (crust), South Atlantic (Endeavor EN063, 32D)
Atlantic Ocean
Other media
- Type
- Other medium
Hydrogenetic Fe-Mn deposit (crust) of Rehkämper et al. (2002), South Atlantic, 3310 m water depth; 29.4 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 |
|---|---|---|---|---|
| 13.1 ± 0.45 ε | 1 | Single analysis; ± 0.45 ε (2σ, external reproducibility on an in-house Fe-Mn crust); 29.4 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 |
|---|---|---|---|---|
| 18.773 ± 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 |
|---|---|---|---|---|
| 15.656 ± 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 |
|---|---|---|---|---|
| 38.799 ± 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
- Atlantic, Brazil Basin, station KN192-5 3
- Hydrogenetic Fe-Mn deposit (crust), South Atlantic (SO-84, DS43)
- South Atlantic, station 6 of the GEOTRACES 40° S cruise
- Mixed hydrothermal-hydrogenetic Fe-Mn deposit (crust), Southern Ocean (Vulcan 5, D34-39)
- Atlantic, Angola Basin, station ANT XXIII/1 69/21
- Atlantic, Angola Basin, station KN192-5 13
- Deep-water diagenetic Fe-Mn deposit (nodule), South Atlantic (GeoB1037-2)
- Atlantic, Guinea Basin/Chain Fracture Zone, station ANT XXIII/1 69/18
Cite this page
IsoFind Atlas (2026). Hydrogenetic Fe-Mn deposit (crust), South Atlantic (Endeavor EN063, 32D), isotope signatures. https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-atlantique-sud-endeavor-en063-32d/ (accessed 2026-10-16).
@misc{isofind2026hydrogeneticfemndepositcrusts,
title = {Hydrogenetic Fe-Mn deposit (crust), South Atlantic (Endeavor EN063, 32D), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-atlantique-sud-endeavor-en063-32d/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16