BGS mineralogy and petrology collection record
| Sample number | E62078; COLLNOGW116; |
|---|---|
| Sample Donor | Woodhall, D.G. |
| Rock name | Microgranite. |
| Stratigraphy | Not entered |
| Comments | Field name: Dolerite, close to S margin of large intrusion. Thin section: coarse-grained (<2 mm) crystalline rock, strongly altered (chloritisation), but igneous textures still clear, rock comprises feldspar graphically intergrown with quartz |
| Locality details | 580 m 002 deg from Waen Fechan. 4.45 Km SW of Dolgellau Bridge (S End) |
| 50k map sheet | Barmouth (149) |
| Map reference | SH 6867 1718 |
| 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
E62078
