BGS mineralogy and petrology collection record

Sample number	E63117; COLLNOKB117;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	10m above KB117 the probable base of the flow(GROUP= Llewelyn Volcanic Group)(FORM= Capel Curig Volcanic Fm.)(MEMB= 2nd. Member.)(IE=E)(TEXTURE=Fiamme rich
Locality details	Craig yr Ysfa
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 6920 6490
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.