BGS mineralogy and petrology collection record

Sample number E64466; COLLNOTL97;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments About 15m from base of tuff unit(GROUP= Llewelyn Volcanic Group)(FORM= Capel Curig Volcanic Fm.)(MEMB= 4th. Member.)(IE=E)(TEXTURE=
Locality details Gallt yr Ogof
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 6938 5938
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, E64466

Plane Polarized, E64466

Plane Polarized, E64466