BGS mineralogy and petrology collection record

Sample number E64440; COLLNOTL71;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Near top 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 6727 6020
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, E64440

Plane Polarized, E64440

Plane Polarized, E64440