Toyoha
Hokkaido, Japan
Epithermal depositsPb, Zn, Ag
- Type
- Intermediate-sulfidation epithermal
Deposit represented by collection native silver in Mathur et al. (2018) (mines: Toyoha). Coordinates not published.
δ109Ag in ‰ (per mil) Values of the same system
Standard : NIST SRM 978a
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.032 ‰ | 1 | hypogene native silver Single analysis (AK-238). Samples: AK-238: Toyoha (IS epithermal). Hypogene values centred on 0, supergene ones more scattered (-0.86 to +2.14 ‰) according to the authors. | Mathur et al. (2018), Fractionation of silver isotopes in native silver explained by redo… |
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Cite this page
IsoFind Atlas (2026). Toyoha, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/toyoha/ (accessed 2026-10-21).
@misc{isofind2026toyohaisotopesignatures,
title = {Toyoha, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/toyoha/},
note = {Accessed 2026-10-21}
}Updated : 2026-10-21