BGS mineralogy and petrology collection record

Sample number E63546; COLLNOKB546;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Near top of flow which is bedded and x-bedded(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= Yr Arddu Tuffs (unit 5a).)(IE=E)(TEXTURE=Welded
Locality details Yr Arddu
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View a geological map near 'Snowdon'

Map reference SH 6245 4554
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, E63546

Plane Polarized, E63546

Plane Polarized, E63546