Hydrogenetic Fe-Mn deposit (crust), Pacific (F7-87-SC, D9-16)
Pacific Ocean
Other media
- Type
- Other medium
Hydrogenetic Fe-Mn deposit (crust) of Rehkämper et al. (2002), Pacific, 2300-2235 m water depth; 38.7 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 |
|---|---|---|---|---|
| 10.4 ± 0.45 ε | 1 | Single analysis; ± 0.45 ε (2σ, external reproducibility on an in-house Fe-Mn crust); 38.7 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 |
|---|---|---|---|---|
| 18.845 ± 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 |
|---|---|---|---|---|
| 15.646 ± 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 |
|---|---|---|---|---|
| 38.859 ± 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
- Santa Barbara Basin
- Monterey Bay, station M1
- Guaymas Basin hydrothermal fluids (Gulf of California)
- North-East Pacific, 31° N 137° W
- Deerbone Spring (Yellowstone) United States
- Cistern Spring (Yellowstone) United States
- East Pacific Rise hydrothermal fluids at 21° N
- North-East Pacific, Juan de Fuca Ridge (47.93° N 129.07° W)
Cite this page
IsoFind Atlas (2026). Hydrogenetic Fe-Mn deposit (crust), Pacific (F7-87-SC, D9-16), isotope signatures. https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-pacifique-f7-87-sc-d9-16/ (accessed 2026-10-16).
@misc{isofind2026hydrogeneticfemndepositcrustp,
title = {Hydrogenetic Fe-Mn deposit (crust), Pacific (F7-87-SC, D9-16), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/depot-fe-mn-hydrogenetique-croute-pacifique-f7-87-sc-d9-16/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16