Dillwyn area (Virginia)
Virginia, gold-pyrite belt, United States
Volcanogenic massive sulfidesAu (Fe)
- Type
- Gold-bearing pyritic sulfides in metavolcanic rocks
Au (Fe) deposit of Cambrian (?) age in a dominantly metavolcanic terrane, metamorphosed to amphibolite facies. Palmer and Slack (1989, Table 2): tourmaline at -2.05 ‰. 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 |
|---|---|---|---|---|
| −2.05 ‰ | 1 | tourmaline of the massive sulfide or associated tourmalinite Single analysis (JG-64D-77). Uncertainties: JG-64D-77 -2.05 ± 0.35 ‰. | Palmer & Slack (1989), Boron isotopic composition of tourmaline from massive sulfide depo… |
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). Dillwyn area (Virginia), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/secteur-de-dillwyn-virginie/ (accessed 2026-10-19).
@misc{isofind2026dillwynareavirginiaisotopesig,
title = {Dillwyn area (Virginia), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/secteur-de-dillwyn-virginie/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19