Earth Science Conservation Review
| Dickson's Island, Castleward | Down |
| Site Type: | Mine (disused), Spoil |
| Site Status: | ESCR |
| Grid Reference: | J577501 |
| Google maps: | 54.37556,-5.57308 |
| Rocks | |
|---|---|
| Rock Type: | Greywacke |
| Interest | |
| Minerals: | Calcite, Dolomite, Galena, Sphalerite |
| Other interest: | hydrothermal vein |
Summary of site:
Dickson's Island was formerly the site of a small lead/zinc mine, exploiting a hydrothermal vein. Hydrothermal minerals are precipitated from hot brine solutions travelling through voids in rocks such as narrow fractures and faults. The ore minerals in this case were galena (a lead sulphide) and sphalerite (a zinc sulphide). Now only spoil heaps and shafts to the workings remain.
| Enlander, I., Dempster, M. & Doughty, P., 2026. Dickson's Island, Castleward, County Down, site summary. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/summary.php?item=530. Accessed on 2026-04-16 |
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