BGS mineralogy and petrology collection record

Sample number	MR25323; COLLNO5;
Sample Donor	White,D.E.
Rock name	'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Upper Ashes of Arenig, Ordovician
Locality details	Cut-off trenches (south bank) (Tryweryn Reservoir) 250yds at342deg. from Ty'n-y-cerrig Farm near Bala
50k map sheet	Corwen (120) View images in GeoScenic related to 'Corwen' View the geology near 'Corwen'
Map reference	SH 8778 3999
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions