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Watson's Lode

Burketown mineral field, Lawn Hill platform (Mount Isa basin), north-western Queensland, Australia

Other hydrothermalZn-Pb-Ag

Type
Discordant Zn-Pb-Ag veins and breccias

Discordant deposit about 10 km south of Century, in a 300 m north-east fault zone (Lawn supersequence): sphalerite, quartz, siderite, galena and chalcopyrite, up to 10 m at 20.5 % Zn; Pb model ages from 1575 to 1485 Ma. Ore fluids of the Burketown field are evolved basinal brines (meteoric waters and evaporated seawater), sulfur coming from thermochemical sulfate reduction. Samples from shaft spoil. Indicative coordinates.

δ34S in ‰ (per mil) Values of the same system

Standard : V-CDT

ValueRangenMineral or matrixSource
21.4 ± 1.3 ‰18.5 / 22.9 ‰9stage WS1 and WS2 sphalerite
Mean and standard deviation recalculated from 9 samples, Table 4.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…
30.8 ± 0.8 ‰30.2 / 32 ‰4late sphalerite (WS3)
Mean and standard deviation recalculated from 4 samples, Table 4. Late sulfate reduction in a closed system.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…
21.3 ± 1.6 ‰19.6 / 24.7 ‰7chalcopyrite (WCp1 and WCp2)
Mean and standard deviation recalculated from 7 samples, Table 4.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…
18.6 ± 0.9 ‰17.6 / 19.4 ‰3galena (WG1)
Mean and standard deviation recalculated from 3 samples, Table 4.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…

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

Standard : V-SMOW

ValueRangenMineral or matrixSource
−73 ± 12 ‰−89 / −58 ‰5fluid inclusion water in sphalerite (WS1 and WS2)
Mean and standard deviation recalculated from 5 samples, Table 2.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…
−54 ± 10 ‰−61 / −47 ‰2fluid inclusion water in quartz (WQ2 and WQ6)
Mean and standard deviation recalculated from 2 samples, Table 2. WQ2 at -61 ‰, late WQ6 at -47 ‰.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…

δ18O in ‰ (per mil) Values of the same system

Standard : V-SMOW

ValueRangenMineral or matrixSource
2 ± 0.6 ‰1.6 / 2.4 ‰2fluid inclusion water in sphalerite (WS2), direct measurement
Mean and standard deviation recalculated from 2 samples, Table 2. Evolved basinal brine.
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…
15.4 ± 0.1 ‰15.3 / 15.4 ‰2vein quartz (syn-ore WQ2 and late WQ6)
Mean and standard deviation recalculated from 2 samples, Table 2. WQ2 at 15.4 ‰ (calculated fluid 2.4 ‰ at 180 °C), WQ6 at 15.3 ‰ (300 to 350 °C fluid).
Polito et al. (2006), Zinc deposits and related mineralization of the Burketown mineral f…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Watson's Lode, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/watson-s-lode/ (accessed 2026-10-13).

@misc{isofind2026watsonslodeisotopesignatures,
  title = {Watson's Lode, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/watson-s-lode/},
  note = {Accessed 2026-10-13}
}

Updated : 2026-10-13