Cligga Head
Perranporth, north Cornwall coast, United Kingdom
Other hydrothermalSn-W
- Type
- Swarm of greisen-bordered cassiterite-wolframite veins
Small coastal granite stock cut by a swarm of greisen-bordered cassiterite, wolframite and stannite veins. 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 |
|---|---|---|---|---|
| 1.14 ± 0.33 ‰ | 0.9 / 1.37 ‰ | 2 | primary cassiterite Mean and standard deviation recalculated from 2 samples, Appendix A1. Mean δ124/120Sn of 0.41 ‰ (Puratronic). Replicates of a sample averaged. | Marahrens (2021), Tin isotope analysis of tin ore deposits in Europe and Central Asia in … |
| −0.29 ± 0.3 ‰ | −0.5 / −0.07 ‰ | 2 | primary stannite (reduced with copper) Mean and standard deviation recalculated from 2 samples, Appendix A8. Mean δ124/120Sn of -0.25 ‰ (Puratronic). Replicates of a sample averaged. Table 6.8 swaps the Cligga Head and Hingston Down means; the text and the appendix give the values used here. | Marahrens (2021), Tin isotope analysis of tin ore deposits in Europe and Central Asia in … |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.3959 / 18.5921 | 2 | cassiterite concentrate (bulk lead) Range of 2 ores, "Lead isotopes - tin ores" sheet of OSM2 (marine placer). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Cligga Head alluvial, Cligga Head beach marine alluvial. | 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 |
|---|---|---|---|---|
| 15.6392 / 15.6481 | 2 | cassiterite concentrate (bulk lead) Range of 2 ores, "Lead isotopes - tin ores" sheet of OSM2 (marine placer). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Cligga Head alluvial, Cligga Head beach marine alluvial. | 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 |
|---|---|---|---|---|
| 38.381 / 38.408 | 2 | cassiterite concentrate (bulk lead) Range of 2 ores, "Lead isotopes - tin ores" sheet of OSM2 (marine placer). Cassiterite lead is partly radiogenic and spreads along an isochron: no representative central value. Sites: Cligga Head alluvial, Cligga Head beach marine alluvial. | Williams et al. (2025), From Land's End to the Levant: did Britain's tin sources transfor… |
Deposits of the same type
- St Agnes (tin district) United Kingdom
- Cornwall tin district United Kingdom
- Carnmenellis granite (Camborne-Redruth) United Kingdom
- St Austell granite United Kingdom
- Land's End granite (tin district) United Kingdom
- Bodmin Moor granite United Kingdom
- Kit Hill granite (Callington) United Kingdom
- Hingston Down (quarry, Calstock) United Kingdom
Cite this page
IsoFind Atlas (2026). Cligga Head, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/cligga-head/ (accessed 2026-10-13).
@misc{isofind2026cliggaheadisotopesignatures,
title = {Cligga Head, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/cligga-head/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13