BGS mineralogy and petrology collection record
| Sample number | E54254; COLLNOFU48; |
|---|---|
| Sample Donor | Fletcher, Chris J.N |
| Rock name | 'Original entry: Tuff' |
| Stratigraphy | Not entered |
| Comments | Conglomeritic tuff layer in finer ash fall tuff. |
| Locality details | 900 m. at 77 deg from Penygroes School. |
| 50k map sheet | Nefyn (118) |
| Map reference | SH 4843 5338 |
| 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
E54254
