BGS mineralogy and petrology collection record
| Sample number | E10939; COLLNO20; |
|---|---|
| Sample Donor | Matley, C.A |
| Rock name | 'Original entry: Spotted Hornfels' |
| Stratigraphy | Not entered |
| Comments | see mem. Geology of Anglesey p 320 Contact alteration by Peridotite during natural movements with contact alteration later than foliation Mona Complex Plutonic Intrus |
| Locality details | Porth-yr-Ysgraff |
| 50k map sheet | Holyhead (93) |
| Map reference | SH 308 930 |
| 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
E10939
