Cleft Segment, Monolith and Pipe Organ vents (Juan de Fuca Ridge)
Juan de Fuca Ridge, northeast Pacific
Other media
- Type
- Other medium
Cleft Segment vents sampled in 1991 and 1994, phase-separated high-chlorinity fluids (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 |
|---|---|---|---|---|
| 0.306 ± 0.153 | 0.13 / 0.401 | 3 | high-chlorinity hydrothermal fluid Mean and standard deviation recalculated from 3 analyses, 0.130 to 0.401 (Monolith, 1991 0.388; Monolith, 1994 0.130; Pipe Organ, 1991 0.401). Monolith, 1991: 308 °C, Mg 2.38 mmol/kg, Cl 875 (891) mmol/kg, Os 202 fmol/kg, measured 0.387, corrected 0.388 ± 0.002; Monolith, 1994: 270 °C, Mg 2.36 mmol/kg, Cl 800 (812) mmol/kg, Os 55 fmol/kg, measured 0.137, corrected 0.13 ± 0.001; Pipe Organ, 1991: 265 °C, Mg 11.5 mmol/kg, Cl 1086 (1237) mmol/kg, Os 15 fmol/kg, measured 0.38, corrected 0.401 ± 0.03. Cl in brackets: content corrected for seawater contamination during sampling. Monolith 1991 (202 fmol/kg, 0.388) plots on a mixing line between seawater and a 0.11 end-member; Pipe Organ carries an 18 % blank correction on concentration. | 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). Cleft Segment, Monolith and Pipe Organ vents (Juan de Fuca Ridge), isotope signatures. https://www.isofind.tech/isotopes/en/sites/segment-cleft-events-monolith-et-pipe-organ-dorsale-juan-de-fuca/ (accessed 2026-10-21).
@misc{isofind2026cleftsegmentmonolithandpipeor,
title = {Cleft Segment, Monolith and Pipe Organ vents (Juan de Fuca Ridge), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/segment-cleft-events-monolith-et-pipe-organ-dorsale-juan-de-fuca/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21