BGS mineralogy and petrology collection record

Sample number E64261; COLLNOKB1261;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Tuff'
Stratigraphy Not entered
Comments Mass flow (? debris flow ) unit. Above basalt above KB1260.(GROUP= Snowdon Volcanic Group)(FORM= Upper Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Well bedded
Locality details Crib y ddysgl
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View a geological map near 'Snowdon'

Map reference SH 6119 5514
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, E64261

Plane Polarized, E64261

Plane Polarized, E64261