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Rio Tinto

Huelva (Iberian Pyrite Belt), Spain

Volcanogenic massive sulfidesCu-Zn-Pb-Au-Ag (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). The largest massive sulfide district of the belt, worked since the Chalcolithic (corta Dehesa, San Dionisio orebody, Cerro Colorado). Indicative coordinates.

206Pb/204Pb isotope ratio, no unit Values of the same system

Standard : NIST SRM 981

ValueRangenMineral or matrixSource
18.19 ± 0.00918.169 / 18.20714massive sulfides (bulk ore or galena separate)
Mean and standard deviation recalculated from 14 samples, Table 1. Corta Dehesa (disseminated stringer pyrite, 2 analyses), San Dionisio orebody in the open pit (10, of which 7 taken from Pomiès et al.) and at level 30 (2 galenas). Published Rio Tinto mean: 18.190 / 15.630 / 38.217.
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

ValueRangenMineral or matrixSource
15.63 ± 0.01315.607 / 15.64514massive sulfides (bulk ore or galena separate)
Mean and standard deviation recalculated from 14 samples, Table 1. Corta Dehesa (disseminated stringer pyrite, 2 analyses), San Dionisio orebody in the open pit (10, of which 7 taken from Pomiès et al.) and at level 30 (2 galenas). Published Rio Tinto mean: 18.190 / 15.630 / 38.217.
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

ValueRangenMineral or matrixSource
38.217 ± 0.03938.153 / 38.27514massive sulfides (bulk ore or galena separate)
Mean and standard deviation recalculated from 14 samples, Table 1. Corta Dehesa (disseminated stringer pyrite, 2 analyses), San Dionisio orebody in the open pit (10, of which 7 taken from Pomiès et al.) and at level 30 (2 galenas). Published Rio Tinto mean: 18.190 / 15.630 / 38.217.
Marcoux (1998), Lead isotope systematics of the giant massive sulphide deposits in the Ib…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Rio Tinto, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/rio-tinto-s745/ (accessed 2026-10-13).

@misc{isofind2026riotintoisotopesignatures,
  title = {Rio Tinto, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/rio-tinto-s745/},
  note = {Accessed 2026-10-13}
}

Updated : 2026-10-13