BGS mineralogy and petrology collection record

Sample number E64402; COLLNOTL33;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments 10m above base of ash-flow tuff(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 6295 5655
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E64402

Cross Polarized, E64402

Plane Polarized, E64402

Plane Polarized, E64402