BGS mineralogy and petrology collection record

Sample number E64438; COLLNOTL69;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments About 30m from base of tuff unit(GROUP= Llewelyn Volcanic Group)(FORM= )(MEMB= Gwern Gof Tuff.)(IE=E)(TEXTURE=
Locality details Gwern Gof Uchaf
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 6728 6019
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


Cross Polarized, E64438

Plane Polarized, E64438

Plane Polarized, E64438