Lagoa Salgada
Alentejo, Sado basin (Iberian Pyrite Belt), Portugal
Volcanogenic massive sulfidesCu-Zn-Pb (pyrite)
- Type
- Volcanogenic massive sulfide
Volcanogenic massive sulfide body of the Iberian Pyrite Belt, hosted by the volcano-sedimentary complex (Late Devonian to Visean). Its lead is very homogeneous over 250 km and close to that of the host acid lavas (Marcoux, 1998). Blind orebody discovered by geophysics beneath the Tertiary cover. Deposit not located: the place cited in the source could not be tied to reliable coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.191 ± 0.011 | 18.181 / 18.203 | 3 | massive sulfides (bulk ore or galena separate) Mean and standard deviation recalculated from 3 samples, Table 1. Massive polymetallic ore (2541 ppm Pb in the first sample). | Marcoux (1998), Lead isotope systematics of the giant massive sulphide deposits in the Ib… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.631 ± 0.018 | 15.619 / 15.651 | 3 | massive sulfides (bulk ore or galena separate) Mean and standard deviation recalculated from 3 samples, Table 1. Massive polymetallic ore (2541 ppm Pb in the first sample). | Marcoux (1998), Lead isotope systematics of the giant massive sulphide deposits in the Ib… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.211 ± 0.045 | 38.178 / 38.262 | 3 | massive sulfides (bulk ore or galena separate) Mean and standard deviation recalculated from 3 samples, Table 1. Massive polymetallic ore (2541 ppm Pb in the first sample). | Marcoux (1998), Lead isotope systematics of the giant massive sulphide deposits in the Ib… |
Deposits of the same type
- Iberian Pyrite Belt (representative example) Spain/Portugal
- Neves-Corvo Portugal
- Kidd Creek Canada
- Flin Flon Canada
- Rio Tinto Spain
- Cyclades (Kondaros-Katsimouti and Triades) Greece
- Boliden Sweden
- Tharsis Spain
Cite this page
IsoFind Atlas (2026). Lagoa Salgada, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/lagoa-salgada/ (accessed 2026-10-13).
@misc{isofind2026lagoasalgadaisotopesignatures,
title = {Lagoa Salgada, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/lagoa-salgada/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13