| Sample number |
MR7911 |
| Sample Donor |
Not entered |
| Rock name |
Phosphate-Grainstone. 'Original entry: Phosphatic Limestone' |
| Stratigraphy |
Ordovician. |
| Comments |
Phosphatic limestone,Ordovician,phosphate,Collected byTG Jones J314 |
| Locality details |
Cwm Gwern,old phosphate mine at Cwm Gwern, 1.5 miles S of Pen-y-Bont Fawr, NE of Lake Vyrnwy, |
| 50k map sheet |
Bala (136)
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|
| Map reference |
|
| Year collected |
1931 |
| Bore name |
Not applicable |
| Confidentiality |
No restrictions |
