Get Essential, free

Toad (Canada, river osmium)

Eastern Cordillera (Rocky and Mackenzie Mountains), Mackenzie basin, Canada

Rivers and surface water

Type
River or surface water

Eastern Cordillera river; headwaters on metamorphic carbonates and shales (Racing, Toad) are the most radiogenic of the data set. Sampled in 1996 or 1999 (CAN96 or CAN99 prefix); coordinates not published (Huh et al., 2004).

187Os/188Os isotope ratio, no unit Values of the same system

Standard : Rapport absolu, sans standard de référence

ValueRangenMineral or matrixSource
2.57 ± 0.262.38 / 2.752river water (dissolved load)
Mean and standard deviation recalculated from 2 analyses, 2.38 to 2.75 (CAN96-20 2.38; CAN99-60 2.75). Not verified for CAN96-20: value taken from Levasseur et al. Dissolved Os: CAN96-20 54.7 fmol/kg; CAN99-60 72 fmol/kg. Table sources: CAN96-20 L, CAN99-60 H (H: this study, L: Levasseur et al.).
Huh et al. (2004), Osmium isotope geochemistry in the Mackenzie River basin, Earth and Pl…
3.721bed load
Single analysis (CAN99-60). Os 44.2 ppt, Re 0.84 ppb, 187Re/188Os 136 (table source: H).
Huh et al. (2004), Osmium isotope geochemistry in the Mackenzie River basin, Earth and Pl…
2.931suspended matter
Single analysis (CAN99-60). Os 79 ppt, Re 1.118 ppb, 187Re/188Os 94.2 (table source: H).
Huh et al. (2004), Osmium isotope geochemistry in the Mackenzie River basin, Earth and Pl…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Toad (Canada, river osmium), isotope signatures. https://www.isofind.tech/isotopes/en/sites/toad-canada-osmium-fluvial/ (accessed 2026-10-20).

@misc{isofind2026toadcanadariverosmiumisotopes,
  title = {Toad (Canada, river osmium), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/toad-canada-osmium-fluvial/},
  note = {Accessed 2026-10-20}
}

Updated : 2026-10-20