BGS mineralogy and petrology collection record

Sample number E63177; COLLNOKB177;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Bottom of flow unit(GROUP= Llewelyn Volcanic Group)(FORM= Braich tu du Volc. Fm.)(MEMB= No.2 unit.)(IE=E)(TEXTURE=Welded
Locality details Braich tu du type section
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

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Map reference SH 6490 6220
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, E63177

Plane Polarized, E63177

Plane Polarized, E63177