Pecos mine (New Mexico)
New Mexico, San Miguel County, United States
Volcanogenic massive sulfidesZn-Pb-Cu-Ag
- Type
- Metamorphosed volcanogenic massive sulfides
Zn-Pb-Cu-Ag deposit of Early Proterozoic age in a dominantly metavolcanic terrane, metamorphosed to amphibolite facies. Palmer and Slack (1989, Table 2): tourmaline at -15.17 ‰. Tourmalines of this kind of terrane range from -15.71 to -1.49 ‰ in the article; according to the authors, the boron source (continental crust, entrained seawater, evaporites) matters more than the formation temperature.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −15.17 ‰ | 1 | tourmaline of the massive sulfide or associated tourmalinite Single analysis (Pecos-1). Uncertainties: Pecos-1 -15.17 ± 0.39 ‰ (repeat -14.88 ± 0.39 ‰, not averaged). | Palmer & Slack (1989), Boron isotopic composition of tourmaline from massive sulfide depo… |
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- Kidd Creek Canada
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- Boliden Sweden
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Cite this page
IsoFind Atlas (2026). Pecos mine (New Mexico), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mine-de-pecos-nouveau-mexique/ (accessed 2026-10-19).
@misc{isofind2026pecosminenewmexicoisotopesign,
title = {Pecos mine (New Mexico), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/mine-de-pecos-nouveau-mexique/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19