Tianeshan (Niutitang Ni-Mo horizon, Zunyi)
Guizhou, Zunyi district (Songlin), China
SEDEXMo, Ni (EGP, Au)
- Type
- Brecciated Ni-Mo-PGE sulphide layer in black shales (Lower Cambrian)
Layer averaging 5 cm, mined for Mo (4 % Mo cut-off grade, up to 7 % Ni, 2 % Zn, over 0.5 ppm Pt, Pd and Au), less than a metre above the Doushantuo-Niutitang contact, between two 10 cm black shales and above a phosphorite.
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 |
|---|---|---|---|---|
| 7.913 ± 0.439 | 7.602 / 8.223 | 2 | Ni-Mo sulphide layer (whole rock, present-day ratio) Mean and standard deviation recalculated from 2 analyses, 7.602 to 8.223 (TES 12 8.223; TES 8A 7.602). Published: TES 12: 187Os/186Os 68.58(13), Re 895.9 ppb, Os 10.53 ppb, 187Re/186Os 7030, [192Os] 2.260 ppb, Pt 10 ppb; TES 8A: 187Os/186Os 63.4(13), Re 1704 ppb, Os 18.69 ppb, 187Re/186Os 7236, [192Os] 4.179 ppb, Pt 46 ppb. TES 8A plots right of the 560 Ma reference isochron: Re or Os mobilised after deposition. | Horan et al. (1994), Rhenium and osmium isotopes in black shales and Ni-Mo-PGE-rich sulfi… |
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Cite this page
IsoFind Atlas (2026). Tianeshan (Niutitang Ni-Mo horizon, Zunyi), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/tianeshan-horizon-ni-mo-du-niutitang-zunyi/ (accessed 2026-10-21).
@misc{isofind2026tianeshanniutitangnimohorizon,
title = {Tianeshan (Niutitang Ni-Mo horizon, Zunyi), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/tianeshan-horizon-ni-mo-du-niutitang-zunyi/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21