BGS mineralogy and petrology collection record
| Sample number | S40598; COLLNOYB427; |
|---|---|
| Sample Donor | Lawrie,T.R.M. |
| Rock name | 'Original entry: Porphyrite, Fine Grained, Feldspar-Phyric' |
| Stratigraphy | Not entered |
| Comments | Multiple porphyrite dyke in Leven Schists, 66 ft thick, trend N 60 deg E. Concordant in general but but north margin blocky and locally discordant. Chilled margin of most northerly member: fine grained, feldspar-phyric |
| Locality details | Allt Choille-rais, 1230 yds S 16 deg E of bridge over Allt nan Aire at Tomnafet |
| 50k map sheet | Loch Eil (62) |
| Map reference | NN 2054 7690 |
| 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
S40598
