BGS mineralogy and petrology collection record
| Sample number | E63673; COLLNOKB673; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Tuff. 'Original entry: Ash Flow Tuff' |
| Stratigraphy | Not entered |
| Comments | Analysis suggests intermediate composition(GROUP= )(FORM= Nant Ffrancon Fm.)(MEMB= Y Glog Unit 2.)(IE=E)(TEXTURE= |
| Locality details | Tremadoc |
| 50k map sheet | Snowdon (119) |
| Map reference | SH 5613 4095 |
| 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
E63673
