BGS mineralogy and petrology collection record

Sample number E64437; COLLNOTL68;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments About 10m from base 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)

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View the geology near 'Bangor'

Map reference SH 6731 6018
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


E64437

Cross Polarized, E64437

Plane Polarized, E64437

Plane Polarized, E64437