Bodmin Moor granite
Bodmin Moor, east Cornwall, United Kingdom
Other hydrothermalSn
- Type
- Tin placers
Variscan Bodmin Moor granite; only one placer cassiterite was analysed. Cassiterite studied by Marahrens (2021) for Bronze Age tin provenance. Indicative coordinates.
δ124Sn in ‰ (per mil) Values of the same system
Standard : NIST SRM 3161a
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.42 ‰ | 1 | secondary cassiterite (placers) One analysis, Appendix A7. Mean δ124/120Sn of 0.09 ‰ (Puratronic). Replicates of a sample averaged. | Marahrens (2021), Tin isotope analysis of tin ore deposits in Europe and Central Asia in … | |
| 0.75 ± 0.04 ‰ | 0.72 / 0.78 ‰ | 2 | placer cassiterite Mean and standard deviation recalculated from 2 samples, "Tin isotopes - tin ores" sheet of OSM2; replicates averaged. Detail (δ124Sn): Lower Moor (0.78), Trewortha Marsh (0.72). | Williams et al. (2025), From Land's End to the Levant: did Britain's tin sources transfor… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 20.6773 / 33.8948 | 4 | cassiterite concentrate (bulk lead) Range of 4 ores, "Lead isotopes - tin ores" sheet of OSM2 (buried placer, surface placer, surface vein, underground vein). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Lower Moor alluvial tin, South Phoenix, Trewortha Marsh (panned), Wheal Vincent. | Williams et al. (2025), From Land's End to the Levant: did Britain's tin sources transfor… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.7658 / 16.4824 | 4 | cassiterite concentrate (bulk lead) Range of 4 ores, "Lead isotopes - tin ores" sheet of OSM2 (buried placer, surface placer, surface vein, underground vein). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Lower Moor alluvial tin, South Phoenix, Trewortha Marsh (panned), Wheal Vincent. | Williams et al. (2025), From Land's End to the Levant: did Britain's tin sources transfor… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.944 / 39.927 | 4 | cassiterite concentrate (bulk lead) Range of 4 ores, "Lead isotopes - tin ores" sheet of OSM2 (buried placer, surface placer, surface vein, underground vein). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Lower Moor alluvial tin, South Phoenix, Trewortha Marsh (panned), Wheal Vincent. | Williams et al. (2025), From Land's End to the Levant: did Britain's tin sources transfor… |
Deposits of the same type
- St Austell granite United Kingdom
- Kit Hill granite (Callington) United Kingdom
- Hingston Down (quarry, Calstock) United Kingdom
- Cligga Head United Kingdom
- St Agnes (tin district) United Kingdom
- Cornwall tin district United Kingdom
- Dartmoor granite United Kingdom
- Carnmenellis granite (Camborne-Redruth) United Kingdom
Cite this page
IsoFind Atlas (2026). Bodmin Moor granite, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/granite-de-bodmin-moor/ (accessed 2026-10-13).
@misc{isofind2026bodminmoorgraniteisotopesigna,
title = {Bodmin Moor granite, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/granite-de-bodmin-moor/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13