BGS mineralogy and petrology collection record

Sample number E63989; COLLNOKB989;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Noranda DDH 1 1-20ft Fluorine analysis(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=
Locality details Cwm Llan
50k map sheet Snowdon (119)

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Map reference SH 6197 5103
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions