Mount Morgans
Western Australia, Laverton greenstone belt, Australia
Orogenic goldAu
- Type
- Orogenic gold (Archaean greenstone belt)
Laverton greenstone belt (north-eastern Eastern Goldfields Province, Yilgarn Craton), greenschist-facies metamorphism. Orogenic gold dated at about 2.65 Ga across the district (hydrothermal monazite and xenotime, SHRIMP U-Pb), unrelated in age to nearby granitoids: a single fluid from a deep, distal source according to the authors; regional fluid calculated at 300 °C at δ13C -3.9 ‰ and δ18O +5.8 ‰. Ore in a banded iron formation (BIF) altered to dolomite, pyrite, quartz and magnetite; hydrothermal monazite dated at 2650 ± 7 Ma (31 SHRIMP analyses on 14 grains). Black shales host part of the ore. Coordinates from Wikipedia (Mount Morgans mine).
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.36 ± 1.29 ‰ | 0.5 / 4.3 ‰ | 7 | pyrite of the mineralised altered BIF Mean and standard deviation recalculated from 7 analyses, samples BS21, BS22 and BS23. | Salier et al. (2005), Geochronological and Stable Isotope Evidence for Widespread Orogeni… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −4.78 ± 0.85 ‰ | −5.5 / −3.7 ‰ | 4 | dolomite of the altered BIF Mean and standard deviation recalculated from 4 analyses, samples BS21, BS22, BS69 and BS66. | Salier et al. (2005), Geochronological and Stable Isotope Evidence for Widespread Orogeni… |
| −5.3 ‰ | 1 | calcite of the altered BIF (BS23) Single analysis. | Salier et al. (2005), Geochronological and Stable Isotope Evidence for Widespread Orogeni… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 11.72 ± 1.49 ‰ | 9.9 / 13.3 ‰ | 4 | dolomite of the altered BIF Mean and standard deviation recalculated from 4 analyses. | Salier et al. (2005), Geochronological and Stable Isotope Evidence for Widespread Orogeni… |
| 10.9 ‰ | 1 | calcite of the altered BIF (BS23) Single analysis. | Salier et al. (2005), Geochronological and Stable Isotope Evidence for Widespread Orogeni… |
Deposits of the same type
- Jupiter (Mount Morgans) Australia
- Wallaby Australia
- Keringal Australia
- Kalgoorlie (Golden Mile) Australia
- Golden Mile (Kalgoorlie) Australia
- Victorian Goldfields Australia
- Kolar India
- Baguamiao China
Cite this page
IsoFind Atlas (2026). Mount Morgans, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mount-morgans/ (accessed 2026-10-14).
@misc{isofind2026mountmorgansisotopesignatures,
title = {Mount Morgans, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/mount-morgans/},
note = {Accessed 2026-10-14}
}Updated : 2026-10-14