Lisheen
County Tipperary (Irish Midlands), Irlande
Mississippi Valley TypeZn-Pb
- Type
- Carbonate-hosted Zn-Pb (Irish type)
Deposit hosted in the Waulsortian Limestone. Irish-type Zn-Pb deposits formed at about 350 to 340 Ma by replacement of Lower Carboniferous carbonates, through mixing of a deep metal-bearing fluid (170 to 240 °C) with a brine rich in bacterial sulfide. Sphalerite δ66Zn, unrelated to temperature, increases from feeder veins to late orebodies: kinetic fractionation during rapid precipitation, or mixing of two sources. Mine coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.07 ± 0.11 ‰ | −0.17 / 0.04 ‰ | 3 | sphalerite of feeder veins below the orebodies Mean and standard deviation recalculated from 3 samples, Table 1. Precipitation at about 171 to 200 °C. The lightest values of the ore field. | Wilkinson et al. (2005), Zinc isotope variation in hydrothermal systems: preliminary evid… |
| 0.233 ± 0.097 ‰ | 0.12 / 0.34 ‰ | 4 | sphalerite of orebodies (main, late and minor) Mean and standard deviation recalculated from 4 samples, Table 1. Main orebody 0.12 ‰ (237 °C), late orebodies 0.28 and 0.192 ‰, minor orebody 0.34 ‰. | Wilkinson et al. (2005), Zinc isotope variation in hydrothermal systems: preliminary evid… |
Deposits of the same type
- Galmoy Irlande
- Silvermines Irlande
- Irish Midlands Zn-Pb prospects and basement veins Irlande
- Tynagh Irlande
- Kilbricken Irlande
- Cloghatrida (Rathkeale) Irlande
- Navan (Tara) Irlande
- Sheshodonnell Irlande
Cite this page
IsoFind Atlas (2026). Lisheen, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/lisheen/ (accessed 2026-10-13).
@misc{isofind2026lisheenisotopesignatures,
title = {Lisheen, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/lisheen/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13