Mount Gibson (gold)

Western Australia, Murchison Province (Yilgarn Craton), Australia

Orogenic goldAu

Type: Archaean amphibolite-facies gold in sulphide-bearing schists

Deposit found in the mid-1980s at the southern tip of the Yalgoo-Singleton belt (Hornet and Orion zones). Jiang et al. (2002): Mg-rich tourmaline of mineralized schists from -18.6 to -17.0 ‰, coarse tourmaline vein at Orion from -21.9 to -21.4 ‰; REE patterns and compositions close to massive sulphide tourmalines, the host schists being for the authors the metamorphosed equivalent of a VMS-style seafloor hydrothermal horizon.

δ11B in ‰ (per mil) Values of the same system

Standard : NIST SRM 951

Value	Range	n	Mineral or matrix	Source
−17.9 ± 0.6 ‰	−18.6 / −17 ‰	6	disseminated tourmaline of garnet-bearing ore schists (Hornet drill core) Mean and standard deviation recalculated from 6 analyses, -18.6 to -17.0 (MG-1 -17.9; MG-1 -17.7; MG-4 -18.4; MG-4 -18.6; MG-5 -17.8; MG-5 -17.0). Two runs per sample.	Jiang et al. (2002), Chemical and boron isotopic compositions of tourmaline from the Arch…
−21.7 ± 0.4 ‰	−21.9 / −21.4 ‰	2	coarse tourmaline spray in metatholeiites (Orion) Mean and standard deviation recalculated from 2 analyses, -21.9 to -21.4 (MG-11 -21.4; MG-11 -21.9). Two runs.	Jiang et al. (2002), Chemical and boron isotopic compositions of tourmaline from the Arch…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Mount Gibson (gold), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mount-gibson-or/ (accessed 2026-10-19).

@misc{isofind2026mountgibsongoldisotopesignatu,
  title = {Mount Gibson (gold), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/mount-gibson-or/},
  note = {Accessed 2026-10-19}
}

Updated : 2026-10-19