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187Os/188Os of SEDEX: published values

isotope ratio, no unit

SEDEX. 6 published values for 4 deposits or sites. Standards, minerals and sources for every value.

DepositsValueRangenMineral or matrixSource
Gaobanhe
China
2.106 ± 1.1670.7899 / 3.6245syn-depositional colloform pyrite (present-day ratio)Gao et al. (2020), Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX p…
Gaobanhe
China
1.887 ± 0.4291.076 / 2.5939syn-depositional laminated pyrite (present-day ratio)Gao et al. (2020), Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX p…
Gaobanhe
China
0.1811syn-depositional pyrite, initial ratio (14-point isochron at 1505 Ma)Gao et al. (2020), Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX p…
Dayong Ni-Mo horizon (Ganziping, Daping and Sansha, Hunan)
China
9.063 ± 1.5017.751 / 11.3755Ni-Mo sulphide layer (whole rock, present-day ratio)Horan et al. (1994), Rhenium and osmium isotopes in black shales and Ni-Mo-PGE-rich sulfi…
Nick (Nick property)
Canada
17.994 ± 3.19214.353 / 20.3123Ni-PGE sulphide layer (whole rock, present-day ratio)Horan et al. (1994), Rhenium and osmium isotopes in black shales and Ni-Mo-PGE-rich sulfi…
Tianeshan (Niutitang Ni-Mo horizon, Zunyi)
China
7.913 ± 0.4397.602 / 8.2232Ni-Mo sulphide layer (whole rock, present-day ratio)Horan et al. (1994), Rhenium and osmium isotopes in black shales and Ni-Mo-PGE-rich sulfi…

Published 187Os/188Os (osmium) values, deposit by deposit

Cite this page

IsoFind Atlas (2026). 187Os/188Os of SEDEX: published values. https://www.isofind.tech/isotopes/en/osmium-187os-188os/sedex/ (accessed 2026-10-21).

@misc{isofind2026187os188osofsedexpublishedval,
  title = {187Os/188Os of SEDEX: published values},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/osmium-187os-188os/sedex/},
  note = {Accessed 2026-10-21}
}

Updated : 2026-10-21