BGS mineralogy and petrology collection record

Sample number	E63546; COLLNOKB546;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	Near top of flow which is bedded and x-bedded(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= Yr Arddu Tuffs (unit 5a).)(IE=E)(TEXTURE=Welded
Locality details	Yr Arddu
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6245 4554
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.