| Sample number |
MR24505; COLLNOKC816; |
| Sample Donor |
Chaperlin,K.; Sanderson,R.W.; |
| Rock name |
'Original entry: Mica Schist' |
| Stratigraphy |
Proterozoic. Pre-Cambrian. Penmynydd Zone, Mona Complex |
| Comments |
Mica Schist, Penmynydd Zone, Mona Complex, Pre-Cambrian. NGR as in register. |
| Locality details |
Quarry name: not recorded: at Ty'n Twll Disused Qry. 300 yd N of St. Cwyfan's Church, Porth Cwyfan |
| 50k map sheet |
Caernarfon (105)
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View the geology near 'Caernarfon'
|
| Map reference |
SH 336 685 |
| Year collected |
1961 |
| Bore name |
Not applicable |
| Confidentiality |
No restrictions |