BGS mineralogy and petrology collection record
| Sample number | E23895; COLLNOBN39; |
|---|---|
| Sample Donor | Bisson,G. |
| Rock name | 'Original entry: Contact Altered Cryastal Lithic Keratophyric Tuff' |
| Stratigraphy | Not entered |
| Comments | Collected within 345 Ft. of West Portal. |
| Locality details | Prewley Tunnel. Dump at West end. |
| 50k map sheet | Okehampton (324) |
| 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
E23895
