BGS mineralogy and petrology collection record

Sample number E63548; COLLNOKB548;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Silicified basal flow unit 50m above base(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Welded
Locality details Oerddwr isaf, Moel Ddu
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View the geology near 'Snowdon'

Map reference SH 5877 4531
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


E63548

Cross Polarized, E63548

Plane Polarized, E63548

Plane Polarized, E63548