Main Endeavour hydrothermal field (Juan de Fuca Ridge)
Juan de Fuca Ridge, northeast Pacific
Other media
- Type
- Other medium
High-temperature vent field of the Endeavour Segment, sampled in 1991 (Sharma et al., 2000). Coordinates not published.
187Os/188Os isotope ratio, no unit Values of the same system
Standard : Rapport absolu, sans standard de référence
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.147 ± 0.022 | 0.129 / 0.172 | 3 | high-temperature hydrothermal fluid (Bastille, S and M, Grotto vents) Mean and standard deviation recalculated from 3 analyses, 0.129 to 0.172 (Bastille, 1991 0.172; S and M, 1991 0.141; Grotto, 1991 0.129). Bastille, 1991: 376 °C, Mg 3.3 mmol/kg, Cl 173 (148) mmol/kg, Os 34 fmol/kg, measured 0.179, corrected 0.172 ± 0.003; S and M, 1991: 367 °C, Mg 0.75 mmol/kg, Cl 354 (351) mmol/kg, Os 65 fmol/kg, measured 0.148, corrected 0.141 ± 0.004; Grotto, 1991: 355 °C, Mg 0.57 mmol/kg, Cl 421 (420) mmol/kg, Os 63 fmol/kg, measured 0.135, corrected 0.129 ± 0.004. Cl in brackets: content corrected for seawater contamination during sampling. Os 34 to 65 fmol/kg, comparable to seawater: fluid Os precipitates almost entirely during ascent and cooling, according to the authors. | Sharma et al. (2000), Osmium isotopes in hydrothermal fluids from the Juan de Fuca Ridge,… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Main Endeavour hydrothermal field (Juan de Fuca Ridge), isotope signatures. https://www.isofind.tech/isotopes/en/sites/champ-hydrothermal-de-main-endeavour-dorsale-juan-de-fuca/ (accessed 2026-10-21).
@misc{isofind2026mainendeavourhydrothermalfiel,
title = {Main Endeavour hydrothermal field (Juan de Fuca Ridge), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/champ-hydrothermal-de-main-endeavour-dorsale-juan-de-fuca/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21