Galmoy
County Kilkenny, Irish Midlands, Irlande
Mississippi Valley TypeZn-Pb
- Type
- Carbonate-hosted Zn-Pb (Irish-type)
Lower Carboniferous Irish-type deposit with local non-sulfide mineralisation. Late greenish vug-filling smithsonite from the CW orebody, with δ66Zn close to sphalerite. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.33 ‰ | 1 | sphalerite (CW orebody) One analysis (CW-1, 2 SD 0.08 ‰), Table 1. | Mondillo et al. (2018), A global assessment of Zn isotope fractionation in secondary Zn m… | |
| 0.41 ± 0.08 ‰ | 0.35 / 0.46 ‰ | 2 | late smithsonite (CW orebody) Mean and standard deviation recalculated from 2 samples, Table 1. Samples CW-1 and CW-AF. | Mondillo et al. (2018), A global assessment of Zn isotope fractionation in secondary Zn m… |
| 0.62 ± 0.63 ‰ | 0.14 / 1.33 ‰ | 3 | sphalerite (CW orebody and GY minor orebody) Mean and standard deviation recalculated from 3 samples, Table 1. 2CW, late yellow-green sphalerite at 1.33 ‰, the heaviest value of the study; 10CW at 0.14 ‰; minor orebody at 0.38 ‰. | Wilkinson et al. (2005), Zinc isotope variation in hydrothermal systems: preliminary evid… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 30 ± 0.7 ‰ | 29.2 / 31.2 ‰ | 11 | supergene smithsonite Mean and standard deviation recalculated from 11 analyses, Table 1. Specimens from the Natural History Museum (London) and private collections. Deep oxidation; smithsonite rich in Pb and Ca, poor in Mn. | Boni et al. (2019), Stable isotopes of nonsulphide Zn-Pb ores in Britain and Ireland: flu… |
| 17.2 ± 0.9 ‰ | 16.6 / 17.9 ‰ | 2 | supergene cerussite Mean and standard deviation recalculated from 2 samples, Table 1. Specimens from the Natural History Museum (London) and private collections. | Boni et al. (2019), Stable isotopes of nonsulphide Zn-Pb ores in Britain and Ireland: flu… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −7.5 ± 0.9 ‰ | −8.6 / −5.7 ‰ | 11 | supergene smithsonite Mean and standard deviation recalculated from 11 analyses, Table 1. Specimens from the Natural History Museum (London) and private collections. Deep oxidation; smithsonite rich in Pb and Ca, poor in Mn. | Boni et al. (2019), Stable isotopes of nonsulphide Zn-Pb ores in Britain and Ireland: flu… |
| −4.3 ± 6 ‰ | −8.6 / −0.1 ‰ | 2 | supergene cerussite Mean and standard deviation recalculated from 2 samples, Table 1. Specimens from the Natural History Museum (London) and private collections. | Boni et al. (2019), Stable isotopes of nonsulphide Zn-Pb ores in Britain and Ireland: flu… |
Deposits of the same type
- Lisheen Irlande
- Irish Midlands Zn-Pb prospects and basement veins Irlande
- Silvermines Irlande
- Tynagh Irlande
- Navan (Tara) Irlande
- Kilbricken Irlande
- Cloghatrida (Rathkeale) Irlande
- Sheshodonnell Irlande
Cite this page
IsoFind Atlas (2026). Galmoy, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/galmoy/ (accessed 2026-10-13).
@misc{isofind2026galmoyisotopesignatures,
title = {Galmoy, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/galmoy/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13