Big Bell

Western Australia, Murchison Province (Yilgarn Craton), Australia

Orogenic goldAu

Type: Archaean amphibolite-facies lode gold (lode schists)

Gold deposit in a narrow greenstone belt (about 1 km wide) of the Meekatharra-Mount Magnet belt, between two granitoid batholiths; about 40 t gold produced for a resource over 100 t at 2.1-4.7 g/t. Jiang et al. (2002): Mg-rich tourmaline of lode schists from -17.7 to -15.0 ‰, lighter late pegmatites (-21.6 to -20.9 ‰). Indicative coordinates, not published in the article.

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

Standard : NIST SRM 951

Value	Range	n	Mineral or matrix	Source
−16.1 ± 1 ‰	−17.7 / −15 ‰	6	tourmaline of lode schists (needles, clots, sprays on the foliation) Mean and standard deviation recalculated from 6 analyses, -17.7 to -15.0 (BB-2 -16.1; BB-2 -15.0; BB-3 -17.7; BB-3 -16.5; BB-4 -15.8; BB-4 -15.2). Two runs per sample; Fe/(Fe+Mg) 0.11 to 0.30.	Jiang et al. (2002), Chemical and boron isotopic compositions of tourmaline from the Arch…
−21.3 ± 0.3 ‰	−21.6 / −20.9 ‰	4	tourmaline of pegmatites cross-cutting the foliation Mean and standard deviation recalculated from 4 analyses, -21.6 to -20.9 (BB-1 -20.9; BB-1 -21.3; BB-6 -21.6; BB-6 -21.4). Two runs per sample; trace-element pattern different from ore tourmaline.	Jiang et al. (2002), Chemical and boron isotopic compositions of tourmaline from the Arch…

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Cite this page

IsoFind Atlas (2026). Big Bell, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/big-bell/ (accessed 2026-10-19).

@misc{isofind2026bigbellisotopesignatures,
  title = {Big Bell, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/big-bell/},
  note = {Accessed 2026-10-19}
}

Updated : 2026-10-19