 | | Derrynoose lead mine, Co.Armagh, June 1997. |
| |
| Site Type: | Spoil | | Site Status: | local interest | | Council area: | Armagh City, Banbridge & Craigavon Borough Council | | Grid Reference: | H796315 | | Bing maps: | 54.22669,-6.77949 | | Google maps: | 54.22669,-6.77949 | | Rocks |
|---|
| Interest |
|---|
| Minerals: | Galena, Sphalerite | | Other interest: | hydrothermal vein |
| Summary of site: |
| A spoil heap is now all that remains of this mine. Formerly it worked a series of hydrothermal veins containing both galena (lead sulphide, a common lead ore) and sphalerite (zinc sulphide, a common zinc ore). Hydrothermal deposits result from the flow of hot, metal-rich brine solutions through cavities and lines of weakness in rocks, in this case veins. The veins occur in Silurian sediments, the local bedrock. |
|