Lau Basin, Valu Fa Ridge (White Church and Hine Hina sites)
Lau back-arc basin, Valu Fa Ridge, Tonga (bassin arrière-arc de Lau)
Volcanogenic massive sulfidesZn, Pb, Fe (sulfures)
- Type
- Zn-rich back-arc seafloor hydrothermal sulfides
Seafloor hydrothermal sulfides analysed for Sb by Rouxel et al. (2003), values published as ε123Sb. Very Sb-rich sulfides (190 to 320 µg/g), δ123Sb of +0.22 to +0.26 ‰; Hine Hina is the only site not above the basalt value. Indicative coordinates (Fouquet et al., 1991).
δ123Sb in ‰ (per mil) Values of the same system
Standard : Solution Spex du CRPG (Rouxel et al., 2003)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.26 ‰ | 0.26 / 0.26 ‰ | 2 | sphalerite-rich sulfides (White Church site) Mean and standard deviation recalculated from 2 analyses, +0.26 to +0.26 (NL-07-06-2 (White Church, roche totale) +0.26; NL-10-04 sph (White Church) +0.26); 226 to 323 µg/g Sb. | Rouxel et al. (2003), Antimony isotope variations in natural systems and implications for… |
| 0.22 ± 0.04 ‰ | 1 | pyrite (Hine Hina site) Single analysis; ± 0.04 ‰ (95 %); sample NL-16-02 py; 188 µg/g Sb; only sulfide of the study not above the basalt value. | Rouxel et al. (2003), Antimony isotope variations in natural systems and implications for… |
Deposits of the same type
- East Pacific Rise hydrothermal chimneys at 9°50' N (Bio9'' and K-vent) Océan Pacifique (eaux internationales)
- Flin Flon Canada
- Kidd Creek Canada
- Logatchev hydrothermal field Océan Atlantique (eaux internationales)
- Lucky Strike hydrothermal field Océan Atlantique (eaux portugaises, Açores)
- Menez Gwen hydrothermal field Océan Atlantique (eaux portugaises, Açores)
- Perkoa Burkina Faso
- Lousal Portugal
Cite this page
IsoFind Atlas (2026). Lau Basin, Valu Fa Ridge (White Church and Hine Hina sites), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/bassin-de-lau-ride-de-valu-fa-sites-white-church-et-hine-hina/ (accessed 2026-10-16).
@misc{isofind2026laubasinvalufaridgewhitechurc,
title = {Lau Basin, Valu Fa Ridge (White Church and Hine Hina sites), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/bassin-de-lau-ride-de-valu-fa-sites-white-church-et-hine-hina/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16