BGS mineralogy and petrology collection record

Sample number	E64403; COLLNOTL34;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	18m above base of ash-flow unit(GROUP= Nantmor Group)(FORM= Pitts Head Tuff Fm.)(MEMB= Lower Flow Unit.)(IE=E)(TEXTURE=Welded
Locality details	Pont y Gromlech
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6294 5649
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.