BGS mineralogy and petrology collection record
| Sample number | E12197; COLLNOL12; |
|---|---|
| Sample Donor | Matley, C.A |
| Rock name | 'Original entry: Dolerite' |
| Stratigraphy | Not entered |
| Comments | Dolerite sill. |
| Locality details | Porth Alwyn, near Llanfaelrhys. |
| 50k map sheet | Nefyn (118) |
| Map reference | |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E12197
