Seddas Moddizzis
Iglesiente, south-western Sardinia, Italy
Mississippi Valley TypeZn-Pb
- Type
- Zn-Pb in Cambrian carbonates, oxidised to calamine
Mine (Cicillonis open pit) in the hills bordering the Iglesias valley, in Gonnesa territory. Supergene smithsonite formed from meteoric waters at about 20 to 35 °C (Boni et al., 2003); light carbon inherited from soil and vegetation. Indicative coordinates.
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 26.46 ± 0.97 ‰ | 25.68 / 27.54 ‰ | 3 | supergene smithsonite Mean and standard deviation recalculated from 3 samples, Table 1. Multiple analyses of one specimen averaged before computation. Types I to V combined. | Boni et al. (2003), The calamine of southwest Sardinia: geology, mineralogy, and stable i… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −5.46 ± 1.48 ‰ | −6.8 / −3.865 ‰ | 3 | supergene smithsonite Mean and standard deviation recalculated from 3 samples, Table 1. Multiple analyses of one specimen averaged before computation. Types I to V combined. | Boni et al. (2003), The calamine of southwest Sardinia: geology, mineralogy, and stable i… |
Deposits of the same type
- Mount Agruxiau Italy
- Monteponi Italy
- Campo Pisano Italy
- Nebida Italy
- San Benedetto Italy
- Masua Italy
- Malfidano Italy
- Ain Allegua Tunisie
Cite this page
IsoFind Atlas (2026). Seddas Moddizzis, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/seddas-moddizzis/ (accessed 2026-10-13).
@misc{isofind2026seddasmoddizzisisotopesignatu,
title = {Seddas Moddizzis, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/seddas-moddizzis/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13