BGS mineralogy and petrology collection record
Sample number | E54440; COLLNOFU12; |
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Sample Donor | Fletcher, Chris J.N |
Rock name | Siltstone (Undifferentiated). 'Original entry: Siltstone' |
Stratigraphy | Not entered |
Comments | Tuffaceous siltstone. Tryfan Group. |
Locality details | 200 m. at 300 deg. from summit of Cilgwyn. |
50k map sheet | Nefyn (118) |
Map reference | SJ -503 5437 |
Year collected | Not entered |
Bore name | Not applicable |
Confidentiality | No restrictions |